As filed with the Securities and Exchange Commission on _____________

                                           Registration No. 333-________________

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM SB-2

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                         CALYPTE BIOMEDICAL CORPORATION
               (Exact name of registrant as specified in charter)




      Delaware                                3826                      06-1226727
                                                             
 (State or other jurisdiction of    Primary Standard Industrial    (I.R.S. Employer
 incorporation or organization)     Classification Code Number)     Identification No.)



                          5000 HOPYARD ROAD, SUITE 480
                          PLEASANTON, CALIFORNIA 94588
                                 (925) 730-7200

  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                                J. RICHARD GEORGE
                      President and Chief Executive Officer
                         Calypte Biomedical Corporation
                          5000 Hopyard Road, Suite 480
                          Pleasanton, California 94588
                                 (925) 730-7200

 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                   Copies to:

                             JOSEPH A. BARATTA, ESQ.
                               BARATTA & GOLDSTEIN
                                597 FIFTH AVENUE
                            NEW YORK, NEW YORK 10017
                             (212) 750-9700 (PHONE)
                              (212) 750-8297 (FAX)

        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:

As soon as practicable after the effective date of this Registration Statement.

If any of the  securities  being  registered on this Form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the  Securities  Act of
1933, as amended, check the following box. |X|.

If the  registrant  elects to  deliver  its  latest  annual  report to  security
holders, or a complete and legible facsimile thereof,  pursuant to Item 11(a)(1)
of this form, check the following box. |X|.

If this Form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the  Securities  Act of 1933, as amended,  please check the
following box and list the Securities Act  registration  statement number of the
earlier effective registration statement for the same offering. |_|

If this Form is a  post-effective  amendment filed pursuant to Rule 462(c) under
the  Securities  Act of 1933,  as amended,  check the following box and list the
Securities  Act  registration   statement   number  of  the  earlier   effective
registration statement for the same offering. |_|

If delivery  of this  Prospectus  is  expected to be made  pursuant to Rule 434,
please check the following box. |_|




                         CALCULATION OF REGISTRATION FEE





                                                          Proposed             Proposed
                                                           Maximum              Maximum
                                    Amount to be     Offering Price           Aggregate             Amount of
Title of Shares to be Registered      Registered        Per Share(2)     Offering Price      Registration Fee
- --------------------------------     ------------    --------------      --------------     -----------------
                                                                                
Common Stock, $0.03 par value per
share                                   6,472,800    $       0.5325      $    3,446,766      $           437



(1)  Shares of common stock which may be offered  pursuant to this  registration
     statement, which shares have been issued or may be issuable upon conversion
     of  convertible  notes and  debentures  or have been  issued  upon  private
     placement  transactions.  The number of shares of common  stock  registered
     hereunder  includes a good faith  estimate  by the Company of the number of
     shares of common stock  issuable  upon  conversion  of the  debentures.  In
     addition to the shares set forth in the table,  the amount to be registered
     includes an indeterminate  number of shares, as such number may be adjusted
     as a result of stock splits,  stock  dividends and similar  transactions in
     accordance with Rule 416 under the Securities Act of 1933, as amended.

(2)  Estimated in  accordance  with Rule 457(c) for the purpose of computing the
     amount of the  registration fee based on the average of the closing bid and
     ask prices of the Company's common stock on the  Over-the-Counter  Bulletin
     Board on July 13, 2004.


The Registrant hereby amends this  Registration  Statement on such date or dates
as may be necessary to delay its effective date until the Registrant  shall file
a further  amendment that specifically  states that this Registration  Statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities Act of 1933, as amended,  or until this Registration  Statement shall
become effective on such date as the Securities and Exchange Commission,  acting
pursuant to said Section 8(a), may determine.






Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  Prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.

                   SUBJECT TO COMPLETION, DATED JULY __, 2004


                                   PROSPECTUS

                         CALYPTE BIOMEDICAL CORPORATION

                6,472,800 Shares of Common Stock, $0.03 Par Value


o    This  Prospectus  relates to the resale of our common  stock by the selling
     security  holders,  all of  whom  were  issued  securities  pursuant  to an
     exemption under Regulation D, of up to:

     o    6,472,800 shares of our common stock,  including 3,720,000 shares that
          have been previously  issued to selling security holders in connection
          with a $1,488,000 PIPE transaction at $0.40 per share in July 2004 and
          an additional  2,752,800  shares  underlying  warrants to purchase our
          common stock at $0.50 per share issued in conjunction therewith.

o    We will not receive any  proceeds  from the sale of these  shares.  We will
     receive  proceeds  from the  exercise of warrants  issued to certain of the
     selling  stockholders.  Any  proceeds  received  will be used  for  general
     corporate purposes.

o    The  subscribers  (as  detailed  below) may be deemed to be  "underwriters"
     within the meaning of the Securities Act of 1933, as amended, in connection
     with their sales.

o    Our common stock is traded on the Over-the-Counter Bulletin Board under the
     symbol  "CYPT." The last reported  sales price for our common stock on July
     14, 2004 was $0.51 per share.










                 THIS INVESTMENT INVOLVES A HIGH DEGREE OF RISK.

                    SEE " RISK FACTORS" BEGINNING ON PAGE 5.

We may  amend  or  supplement  this  Prospectus  from  time to  time  by  filing
amendments or supplements as required. You should read the entire Prospectus and
any  amendments  or  supplements  carefully  before  you  make  your  investment
decision.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission has approved or disapproved of these securities or determined if this
Prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

                 The date of this Prospectus is July __, 2004.





                                TABLE OF CONTENTS

                                                                            Page
Part I.  Information Required in Prospectus

Where You Can Find More Information                                            1

The Company                                                                    2

The Offering, including Use of Proceeds and
  Determination of Offering Price                                              4

Risk Factors                                                                   5

Summary of Recent Financings                                                  18

Dilution                                                                      26

Selling Security Holders                                                      26

Plan of Distribution                                                          27

Legal Proceedings                                                             29

Directors, Executive Officers, Promoters and Control Persons                  30

Security Ownership of Certain Beneficial Owners and Management                35

Description of the Securities                                                 37

Disclosure of Commission Position on Indemnification
  for Securities Act Liabilities                                              37

Description of Business                                                       38

Management's Discussion and Analysis                                          56

Description of Property                                                       74

Certain Relationships and Related Transactions                                75

Market for Common Stock and Related Stockholder Matters                       75

Executive Compensation                                                        77

Financial Statements                                                          86

Changes in and Disagreements with Accountants on
  Accounting and Financial Disclosure                                         86

Interest of Named Experts and Counsel                                         88

Part II.  Information Not Required in Prospectus

Item 24.  Indemnificationof Directors and Officers                          II-1

Item 25.  Other Expenses of Issuance and Distribution                       II-1

Item 26.  Recent Sales of Unregistered Securities                           II-1

Item 27.  Exhibits                                                         II-12

Item 28.  Undertakings                                                     II-19

Signatures                                                                 II-21





                       WHERE YOU CAN FIND MORE INFORMATION

We file  annual,  quarterly  and special  reports,  proxy  statements  and other
information with the Securities and Exchange  Commission.  You may read and copy
any document we file at the SEC's public  reference  rooms in Washington,  D.C.,
New York, New York and Chicago,  Illinois. Please call the SEC at 1-800-SEC-0330
for further  information on the public reference rooms. Our SEC filings are also
available to the public at the SEC's web site at  http://www.sec.gov  and at our
website at http://www.calypte.com.

A copy of our Annual Report on Form 10-KSB for the year ended  December 31, 2003
is included with this Prospectus. You may request another copy of the 10-KSB, at
no cost, by writing or telephoning us at the following address:

                         Calypte Biomedical Corporation
                          5000 Hopyard Road, Suite 480
                          Pleasanton, California 94588
                              Attention: President
                           Telephone: (925) 730-7200.

You should rely only on  information  provided in this  Prospectus.  We have not
authorized anyone else to provide you with different information.

From time to time,  information we provide or statements  made by our directors,
officers  or  employees  may  constitute  "forward-looking"  statements  and are
subject  to  numerous  risks  and  uncertainties.  Any  statements  made in this
Prospectus,  including any statements incorporated herein by reference, that are
not statements of historical fact are forward-looking statements (including, but
not limited to,  statements  concerning  the  characteristics  and growth of our
market  and  customers,  our  objectives  and plans for  future  operations  and
products  and  our  liquidity  and  capital  resources).   Such  forward-looking
statements are based on current  expectations  and are subject to  uncertainties
and other  factors  which may involve  known and unknown  risks that could cause
actual  results of  operations  to differ  materially  from those  projected  or
implied. Further, certain forward-looking  statements are based upon assumptions
about future events which may not prove to be accurate.  Risks and uncertainties
inherent in forward looking statements include, but are not limited to:

o    fluctuations in our operating results;

o    announcements of technological  innovations or new products which we or our
     competitors make;

o    FDA and international regulatory actions;

o    developments with respect to patents or proprietary rights;

o    changes in stock market analysts'  recommendations regarding Calypte, other
     medical products companies or the medical product industry generally;

o    changes in domestic or international conditions beyond our control that may
     disrupt our or our customers' or distributors'  ability to meet contractual
     obligations;

o    changes in health care policy in the United States or abroad;

o    our ability to obtain  additional  financing  as necessary to fund both our
     long-and short-term business plans;

o    fluctuations in market demand for and supply of our products;

o    public  concern as to the safety of products that we or others  develop and
     public concern regarding HIV and AIDS;

o    availability of  reimbursement  for use of our products from private health
     insurers,   governmental  health   administration   authorities  and  other
     third-party payors; and

o    price and volume  fluctuations  in the stock  market at large  which do not
     relate to our operating performance.

For a further  discussion of these and other significant  factors to consider in
connection  with  forward-looking   statements,   see  the  discussion  in  this
Prospectus under the heading "RISK FACTORS".



                                       1


                                   THE COMPANY

Calypte   Biomedical   Corporation   ("Calypte"  or  the  "Company")   develops,
manufactures  and markets in vitro  diagnostic tests primarily for the detection
of antibodies  to the Human  Immunodeficiency  Virus ("HIV") and other  sexually
transmitted and infectious  diseases.  We have historically focused our business
on urine-based  screening and  supplemental  tests for use in  laboratories.  By
integrating  several proprietary  technologies,  we developed urine HIV antibody
tests, the Calypte  urine-based enzyme immunoassay  ("EIA") HIV Type 1 ("HIV-1")
screening test and the Cambridge Biotech  urine-based HIV-1 western blot ("Urine
Western Blot")  supplemental  test. We also manufacture and market the Cambridge
Biotech  serum-based  western blot ("Serum Western Blot")  supplemental test for
detecting HIV-1 antibodies in serum.  Our revenues are currently  generated from
sales of these  three  products,  which we refer to  collectively  as our "ELISA
tests." The ELISA tests are manufactured in formats that make them most suitable
for high-volume laboratory settings.

We are the only company with Food and Drug  Administration  ("FDA") approval for
the  marketing  and sale of  urine-based  HIV-1  antibody  tests.  Our EIA HIV-1
screening test received FDA approval for use in laboratories in August 1996. Our
Urine  Western Blot  supplemental  test  received FDA approval in May 1998.  Our
urine-based ELISA tests together,  with their screening and confirmatory testing
components, are the only complete FDA approved urine-based HIV testing method.

Our  business is also  involved in  developing  new test  products for the rapid
detection  of HIV-1 and HIV Type 2, a second  type of HIV  ("HIV-2"),  and other
infectious  diseases.  In  November  2003,  we filed an  Investigational  Device
Exemption  ("IDE")  with  the FDA  announcing  our  intent  to  develop  a rapid
serum-based HIV screening test. Rapid tests provide test results in less than 20
minutes and are particularly suitable for point-of-care  testing,  especially in
lesser  developed  countries  which lack the medical  infrastructure  to support
laboratory  based testing.  We are currently  developing  serum- urine- and oral
fluid-based  HIV-1 and HIV-2 rapid tests and  anticipate  that our primary focus
for the current and longer-term future will be the development,  manufacture and
sale of our rapid test products, both internationally and domestically.

We were  incorporated  in California in 1989 and  reincorporated  in Delaware in
1996 at the time of our initial public  offering.  In December 1998, we acquired
certain  assets  from  Cambridge  Biotech  Corporation,  an entity  now owned by
bioMerieux,  Inc.  The  acquisition  included  the Urine  Western Blot and Serum
Western Blot supplemental tests and leasehold rights to the Rockville,  Maryland
manufacturing facility.

We are  headquartered  at 5000 Hopyard Road, Suite 480,  Pleasanton,  California
94588,  telephone  number (925)  730-7200.  During June 2004,  we relocated  our
headquarters to this location from our previous office and manufacturing site in
Alameda,  California.  Our  manufacturing  facility  is  located  in  Rockville,
Maryland.  Historically, our Alameda facility had manufactured our EIA screening
test and the Rockville  facility  manufactured  our urine and serum Western Blot
tests. We are currently  consolidating our domestic manufacturing  operations by
moving all  manufacturing  to our  Rockville  facility.  We closed  the  Alameda
facility  effective June 30, 2004, when the lease expired.  As of July 14, 2004,
following the cessation of manufacturing  operations at our Alameda facility, we
had approximately 50 full-time and temporary employees.

To successfully  implement our business plans, we must obtain  sustainable  cash
flow and  profitability.  Our future  liquidity  and capital  requirements  will
depend on numerous factors,  including successful  completion of the development
of our new rapid tests,  acquisition  and  protection of  intellectual  property
rights,  costs of developing our new products,  ability to transfer  technology,
set up  manufacturing  and obtain  regulatory  approvals of our new rapid tests,
market  acceptance  of all our products,  competing  products in our current and
anticipated  markets,  actions  by the FDA and  other  international  regulatory
bodies, and the ability to raise additional capital in a timely manner.

Since  December 31, 2003, we have entered into new financing  arrangements  that
management  believes  will be  adequate to sustain  our  operations  at expected
levels through 2004.  During 2004, we have completed  private  placements of our
common stock with 12 accredited investors and received aggregate net proceeds of
approximately $10.2 million.  Additionally,  under the amended terms of the Marr
Credit Facility between us and Marr Technologies BV, our largest stockholder and
a participant in one of the private  placements,  we currently have access to an
additional  $3.6 million from the  issuance of 9%  promissory  notes that we may
issue through December 31, 2004. If, however, sufficient funds are not available
to fund our  operations  in 2005 or beyond,  we may need to  arrange  additional
financing or make other arrangements.  There can be no assurance that additional
financing, if and as necessary,  would be available or, if it is available, that
it would be on acceptable terms. The terms of an additional


                                       2


financing could involve a change of control and/or require stockholder  approval
or could potentially trigger anti-dilution protection clauses that are contained
in  existing  financing  agreements.  We would or might be  required to consider
strategic  opportunities,  such  as  a  merger,  consolidation,  sale  or  other
comparable transactions, to sustain our operations. We do not currently have any
agreements  in place with  respect to any such new  strategic  opportunity,  and
there can be no assurance that any such opportunities will be available to us on
acceptable  terms, or at all. If additional  financing is not available when and
if required or is not  available  on  acceptable  terms,  or if we are unable to
arrange a suitable strategic  opportunity,  we will be in significant  financial
jeopardy and may be unable to continue our operations at current  levels,  or at
all.

Use of Form SB-2 Registration Statement

We were contacted by the San Francisco District Office of the SEC on October 28,
2003 and advised of an informal inquiry being conducted by the enforcement staff
of the SEC  regarding  the Company.  The staff  requested,  among other  things,
documents related to certain press releases we issued.  We voluntarily  provided
the information sought by the SEC and cooperated with the SEC in connection with
its  informal  inquiry.  Independently,  the  Audit  Committee  of our  Board of
Directors  investigated the matter and retained outside counsel to assist in its
investigation by reviewing the press releases and related  information that were
the subject matter of the SEC's informal  inquiry  letter.  The Audit  Committee
completed its  investigation  and reported the results of its  investigation and
associated  recommendations  to the Board of  Directors.  Counsel  for the Audit
Committee  advised  the  Audit  Committee  and the Board of  Directors  that the
results of their  investigation,  interviews and review of documents provided in
response  to  the  SEC's  informal  inquiry  letter  indicated  no  evidence  of
management malfeasance with respect to its inquiry. While the SEC has advised us
that the inquiry  should not be  construed  as an  indication  by the SEC or its
staff that any violation of law has occurred, we informed our former independent
auditors, KPMG LLP ("KPMG") of the inquiry, and they informed us that they could
not  complete  their  quarterly  review  of  our  interim  financial  statements
contained in our Quarterly  Report on Form 10-QSB for the quarterly period ended
September 30, 2003 or audit our financial  statements  for our fiscal year ended
December  31,  2003 until such time as our Audit  Committee  had  completed  its
investigation  related to the Commission's informal inquiry letter, the same was
reviewed by KPMG,  and KPMG was  satisfied  that,  in its  opinion,  an adequate
investigation was conducted and appropriate conclusions were reached and actions
taken.

Subsequently,  by letter  dated July 14, 2004,  the SEC Division of  Enforcement
notified us that the matter has been  terminated and that no enforcement  action
has been recommended by the Commission at this time.

The interim financial  statements  contained in a Form 10-QSB are required to be
reviewed  under  Statement  of  Auditing  Standards  No.  100 ("SAS  100") by an
independent  public  accountant  pursuant to Item 310(b) of  Regulation  S-B. We
filed our Form 10-QSB for the quarterly  period ended  September 30, 2003 within
the time permitted,  on November 14, 2003, without KPMG having completed its SAS
100 review.  On December 23, 2003,  the Company  dismissed  KPMG as  independent
auditors for the Company,  effective  immediately.  The decision to dismiss KPMG
was recommended by the Audit Committee of the Board of Directors. As of the date
of KPMG's dismissal, KPMG had advised us that, in KPMG's opinion, the conditions
necessary  for KPMG to complete  its review had not yet been  satisfied.  At the
time of KPMG's dismissal,  the Audit Committee had completed its  investigation,
had reported the results of its investigation and associated  recommendations to
the  Board  of  Directors,   and  the  Board  of  Directors  had  approved  such
recommendations.  In addition, at such time, counsel for the Audit Committee had
advised us that it had commenced to provide  information to KPMG  concerning the
investigation  conducted,  the conclusions  reached and the actions taken by the
Company.

On December  24,  2003,  upon  approval of the Audit  Committee  of the Board of
Directors,  we engaged Odenberg Ullakko Muranishi & Co. LLP ("OUM") to audit the
consolidated  financial  statements  of the  Company  for  the two  years  ended
December 31, 2003 and 2002 and to review the interim financial statements of the
Company  contained  in its  amended  Quarterly  Report  on Form  10-QSB  for the
quarterly  period ended  September  30, 2003.  OUM  completed its SAS 100 review
associated  with  the  Form  10-QSB/A  (No.1)  for the  quarterly  period  ended
September 30, 2003 that we filed on January 29, 2004.

Although  we filed an  amended  10-QSB  on which  OUM has  completed  an SAS 100
review, the staff of the SEC has taken the position that our initial Form 10-QSB
was deficient  because the required  review was not completed on a timely basis.
That  means that we are viewed as not being  current  in our  filings  under the
Securities  Exchange  Act of 1934.  Accordingly,  having been  determined  to be
deficient in our periodic filings,  we are,  therefore,  ineligible to use Forms
S-2  or S-3  to  register  securities  until  all  required  reports  under  the
Securities  Exchange  Act of 1934  have  been  timely  filed  for the 12  months
following January 29, 2004. We are currently  eligible to use either Form S-1 or
SB-2 to satisfy our obligations under the registration rights agreements we have
entered into with respect to various financing  arrangements and we have elected
to use Form SB-2 to register the subject shares of our common stock for resale.


                                       3


                                  THE OFFERING

Common Stock, $0.03 par value per
share ("Common Stock"), outstanding
  as of July 14, 2004:                  168,027,514 shares

Shares offered by selling
  security holders                      6,472,800  shares,  of  which  3,720,000
                                        shares   have  been  issued  to  selling
                                        security holders and are included in our
                                        outstanding shares.

Risk Factors                            The  shares  involve  a high  degree  of
                                        risk.    Investors    should   carefully
                                        consider the information set forth under
                                        "RISK FACTORS" beginning on page 5.

Use of Proceeds                         We will not  receive any  proceeds  from
                                        the sale of common stock offered through
                                        this    prospectus    by   the   selling
                                        shareholders.  To date, we have received
                                        gross  amounts  of  $1,488,000  from the
                                        July 2004 PIPE at $0.40 per  share.  All
                                        proceeds from the financing will be used
                                        for    general    corporate    purposes,
                                        including the  commercialization  of our
                                        rapid tests for HIV-1/2  diagnosis  that
                                        are currently under development.  We are
                                        registering  the shares  for  re-sale to
                                        provide  the selling  shareholders  with
                                        freely    tradable    securities.    The
                                        registration  of these  shares  does not
                                        necessarily   mean  that  any  of  these
                                        shares  will be  offered  or sold by the
                                        selling shareholders.  All proceeds from
                                        the  sale  of  shares  sold  under  this
                                        prospectus   will  go  to  the   selling
                                        shareholders.

                                        We may receive proceeds from the selling
                                        shareholders' exercise of warrants. Such
                                        proceeds,  if  any,  will  be  used  for
                                        working   capital  and  other  corporate
                                        purposes   as  noted   above.   However,
                                        warrants    held    by    the    selling
                                        shareholders may be exercised  through a
                                        cashless     exercise     in     certain
                                        circumstances   while   the   underlying
                                        shares are unregistered,  in which event
                                        we would not receive any  proceeds  from
                                        the exercise.

Determination of Offering Price         This prospectus may be used from time to
                                        time  by the  selling  shareholders  who
                                        offer the common  stock in  transactions
                                        (which may include  block  transactions)
                                        at prevailing  market prices at the time
                                        of  sale,  at  prices   related  to  the
                                        prevailing  market  prices,  or at other
                                        negotiated     prices.    The    selling
                                        shareholders  will act  independently in
                                        determining  the offering  price of each
                                        sale.

Over-the-Counter Bulletin
  Board trading symbol                  CYPT



                                       4



                           FORWARD-LOOKING INFORMATION

When used in this prospectus, the words "believes," "plans,""anticipates," "will
likely result," "will continue,"  "projects," "expects," and similar expressions
are intended to identify "forward-looking  statements" within the meaning of the
Private Securities Litigation Reform Act of 1995. Such statements are subject to
certain risks and  uncertainties,  including  those risks defined  above,  which
could cause actual results to differ materially from those projected.

We  caution  readers  not  to  place  undue  reliance  on  any   forward-looking
statements, which are based on certain assumptions and expectations which may or
may not be valid or actually occur,  and which involve certain risks,  including
these risks  defined  below.  Sales and other  revenues may not commence  and/or
continue as  anticipated  due to delays or  otherwise.  As a result,  our actual
results for future  periods could differ  materially  from those  anticipated or
projected.

                                  RISK FACTORS


In addition to the other information in this Prospectus,  Calypte has identified
a number of risk factors that the Company faces.  These  factors,  among others,
may cause actual results,  events or performance to differ materially from those
expressed in any forward-looking  statements made in this Prospectus or in other
filings with the  Securities  and Exchange  Commission  or in press  releases or
other public  disclosures.  Investors  should be aware of the existence of these
factors and should  consider them  carefully in evaluating  our business  before
purchasing the shares offered in this Prospectus.

                    Risks Related to Our Financial Condition

If We are Unable to Obtain Additional Financing When and If Required We May Have
to  Significantly  Curtail the Scope of Our  Operations  and Alter Our  Business
Model.

We believe that the aggregate of approximately  $10.2 million of net proceeds of
our 2004 private  placements and the availability of approximately  $3.6 million
of  borrowing  capability  from 9%  promissory  notes that we may issue  through
December  31, 2004 under the terms of the amended Marr Credit  Facility  will be
adequate to sustain our operations at expected  levels through 2004.  There can,
however,  be no assurance that such resources will be adequate.  Further,  there
can be no assurance  that we will be able to achieve  expanded  acceptance of or
realize  significant  revenues  from our  current  or  potential  new  products,
including our rapid tests, or that we will achieve  significant  improvements in
the  efficiency  of  our  manufacturing  processes.  In  addition,  there  is no
assurance that we will achieve or sustain  profitability  or positive cash flows
in the future. In the absence of adequate resources from current working capital
and existing financing, we would need to raise additional capital to sustain our
operations.  In that case,  we would or might be required to consider  strategic
opportunities,   including  merger,  consolidation,  sale  or  other  comparable
transaction,  to sustain our operations. We do not currently have any agreements
in place with  respect to any such  strategic  opportunity,  and there can be no
assurance that any such opportunity will be available to us on acceptable terms,
or at all. If  additional  financing is not  available to us when required or is
not available to us on acceptable  terms, or we are unable to arrange a suitable
strategic  opportunity,  we will be in significant financial jeopardy and we may
be unable to continue our operations at current levels,  or at all. The terms of
a  subsequent  financing  may involve a change of control,  require  stockholder
approval,  and/or trigger anti-dilution protection clauses contained in existing
financing  agreements that would result in substantial  dilution to our existing
stockholders  or might  require  us to pledge  the  rights to our  products  for
collateral security for the issuance of a convertible debt security.


                                       5


Our Financial  Condition has  Adversely  Affected Our Ability to Pay  Suppliers,
Service  Providers  and  Licensors  on a Timely Basis Which May  Jeopardize  Our
Ability to Continue Our Operations and to Maintain  License Rights  Necessary to
Continue Shipments and Sales of Our Products.

As of March 31, 2004 our accounts  payable  totaled $2.0 million,  of which $1.5
million  was  over  sixty  days  old.  We  currently  have  primarily  cash-only
arrangements  with suppliers and certain  arrangements  require that we pay down
certain outstanding  amounts due when we make a current payment.  These past due
payments  vary  monthly   depending  on  the  items  purchased  and  range  from
approximately  $50,000  to  $200,000  per  month.  As of March 31,  2004 we have
accrued an aggregate of  approximately  $551,000 in royalty  obligations  to our
patent licensors,  of which  approximately  $387,000 were past due. The licenses
attributable to past due royalty payments relate to technology  utilized in both
our urine EIA screening test and our supplemental urine and serum tests. Because
of the  interdependence  of the screening and supplemental  tests in our testing
algorithm,  the  inability  to use any one of the  patents  could  result in the
disruption of the revenue stream from all of our products. While at this time we
are current  with our payment  plans for past-due  amounts,  if we are unable to
maintain  sufficient  working capital,  our ability to make payments on past due
negotiated royalty obligations,  make timely payments to our critical suppliers,
service providers and to licensors of intellectual property used in our products
will be  jeopardized  and we may be  unable  to  obtain  critical  supplies  and
services and to maintain  licenses  necessary for us to continue to manufacture,
ship and sell our products. Additionally,  certain vendors and service providers
with whom we have not  currently  arranged  payment  plans have or may choose to
bring legal action against us to recover amounts they deem due and owing.  While
we may dispute these claims,  should a creditor  prevail,  we may be required to
pay all amounts due to the creditor.  If the working capital that will enable us
to make the required  payment is not available when required,  we will be placed
in  significant  financial  jeopardy  and we  may  be  unable  to  continue  our
operations at current levels, or at all.

We Have Incurred Losses in the Past and We Expect to Incur Losses in the Future.

We have incurred  losses in each year since our inception.  Our net loss for the
quarter  ended March 31, 2004 was $4.0  million and for the year ended  December
31,  2003 was $26.5  million and our  accumulated  deficit at March 31, 2004 was
$131.9 million.  We expect  operating losses to continue during 2004 and perhaps
beyond,  as we complete  the  development  and begin  commercializing  our rapid
tests, complete our manufacturing  restructuring and consolidation,  and conduct
additional research and development for product improvements and clinical trials
on potential new products.

An Economic Downturn or Terrorist Attacks May Adversely Affect Our Business.

Changes in economic conditions could adversely affect our business. For example,
in a difficult  economic  environment,  customers  may be unwilling or unable to
invest in new  diagnostic  products,  may elect to  reduce  the  amount of their
purchases or may perform less HIV testing.  A weakening  business  climate could
also  cause  longer  sales  cycles  and slower  growth,  and could  expose us to
increased  business or credit risk in dealing with customers  adversely affected
by economic conditions.

Terrorist attacks and subsequent  governmental  responses to these attacks could
cause further  economic  instability or lead to further acts of terrorism in the
United  States and  elsewhere.  These actions could  adversely  affect  economic
conditions  outside  the  United  States  and  reduce  demand  for our  products
internationally. Terrorist attacks could also cause regulatory agencies, such as
the FDA or agencies that perform similar functions outside the United States, to
focus their  resources  on vaccines  or other  products  intended to address the
threat of  biological or chemical  warfare.  This  diversion of resources  could
delay our ability to obtain regulatory approvals required to manufacture, market
or sell our products in the United States and other countries.


                                       6




                Risks Related to the Market for Our Common Stock

The Price of Our Common Stock Has Been Highly  Volatile  Due to Several  Factors
Which Will Continue to Affect the Price of Our Stock.

Our common  stock has traded as low as $0.11 per share and as high as $1.799 per
share in the twelve  months  ended March 31,  2004.  We believe that some of the
factors leading to the volatility include:

o    price and volume  fluctuations  in the stock  market at large  which do not
     relate to our operating performance;

o    fluctuations in our operating results;

o    concerns about our ability to finance our continuing operations;

o    financing  arrangements  which may  require the  issuance of a  significant
     number of shares in relation to the number of shares currently outstanding;

o    announcements of technological  innovations or new products which we or our
     competitors make;

o    FDA, SEC and international regulatory actions;

o    availability of  reimbursement  for use of our products from private health
     insurers,   governmental  health   administration   authorities  and  other
     third-party payors;

o    developments with respect to patents or proprietary rights;

o    public concern as to the safety of products that we or others develop;

o    changes in health care policy in the United States or abroad;

o    changes in stock market analysts'  recommendations regarding Calypte, other
     medical products companies or the medical product industry generally;

o    fluctuations in market demand for and supply of our products;

o    certain world  conditions,  such as SARS, an economic downturn or terrorist
     attacks; and

o    anti-American sentiment in certain international markets.


Our  Registration  of a  Significant  Amount  of Our  Outstanding  Stock and the
Availability of a Significant Number of Shares Eligible for Future Sale May Have
a Negative Effect on the Trading Price of Our Stock.

At June 30, 2004,  investors in our common stock held  approximately  71 million
shares of restricted stock, of which  approximately  41.0 million shares related
to acquisitions of our common stock by Marr  Technologies BV ("Marr" or "MTBV"),
the  provider  of our  9%  promissory  note  credit  facility  and  our  largest
stockholder,  through their participation in private placements in 2003 and 2004
and conversion of debentures. Approximately 15.75 million additional shares were
related  to  issuances  of  restricted  shares  of our  common  stock  to  other
participants in our May 2004 private placement;  another 11.6 million restricted
shares  were  related  to  issuances  pursuant  to  our  convertible  notes  and
debentures and an additional 2.6 million shares were related to issuances  under
contracts  and  agreements  under  which we have  received  goods and  services.
Further,  in the  May  2004  private  placement  we  issued  warrants  that  are
immediately  exercisable  or exercisable on 61 days' notice that could result in
the issuance of an  additional  8.8 million  shares.  Additionally,  we could be
required  to issue  approximately  2.9 million  additional  shares of our common
stock if the holders of currently outstanding  convertible debentures or various
warrant holders elected to convert the remaining  principal and accrued interest
of their  debentures  or exercise  their  outstanding  warrants.  We  registered
essentially all of the outstanding restricted shares as of June 30, 2004 and the
shares  underlying  the  outstanding  convertible  debentures  and warrants in a
registration  statement that became effective on July 8, 2004.  Although certain
of the Marr agreements  require that Marr hold approximately 28.2 million of its
its shares for one year following their  purchase,  essentially all of the other
shares  are now  freely  tradable  or  would be so upon  the  conversion  of the
debentures or exercise of the warrants.  Futhermore,  investors in our July 2004
private  placement  currently  hold  approximately  3.7  million  shares  of our
restricted stock and immediately  exercisable warrants to purchase an additional
2.6 million  shares.  We are  including  the  outstanding  shares and the shares
underlying the warrants in this registration  statement.  If investors holding a
significant  number of freely  tradable  shares  decided to sell them in a short
period of time, such sales could contribute significant downward pressure on the
trading price of our stock.  Such sales might also inhibit our ability to obtain
future equity or equity-related financing on acceptable terms.


                                       7


From inception through July 14, 2004, we have issued approximately 168.0 million
shares of our common stock and raised  approximately $140 million.  At a Special
Meeting of  Stockholders  on February 14,  2003,  our  stockholders  approved an
increase in the number of authorized  shares of the Company's  common stock from
200  million  to 800  million.  Although  we have no plans to do so, at July 15,
2004, we have the ability,  without further  stockholder  approval,  to issue in
excess of 500  million  shares of our common  stock for  financing  or for other
purposes.  The perceived  risk of dilution  from this amount of  authorized  but
unissued  stock may cause our existing  stockholders  and other  holders to sell
their shares of stock,  which would contribute to a decrease in our stock price.
In this regard,  significant downward pressure on the trading price of our stock
may  also  cause  investors  to  engage  in short  sales,  which  would  further
contribute to significant downward pressure on the trading price of our stock.


Our Issuance of Warrants,  Options and Stock Grants to Consultants  for Services
and the  Granting of  Registration  Rights for the  Underlying  Shares of Common
Stock May Have a Negative Effect on the Trading Price of Our Common Stock.

As we  continue  to look for ways to  minimize  our use of cash while  obtaining
required services, we have issued and may continue to issue warrants and options
at or below the current  market  price or make  additional  stock bonus  grants.
During  2003,  we issued  warrants,  options  and stock  bonuses for nearly 19.8
million  shares,  including  approximately  10.0  million  shares from  employee
benefit  plans and the 2003  Non-Qualified  Stock  Option  Plan,  in payment for
consulting  services.  In the first  quarter  of 2004,  we issued  approximately
596,000 additional shares in payment for consulting services. In addition to the
potential  dilutive  effect of a large number of shares and a low exercise price
for the warrants and options,  there is the potential that a large number of the
underlying  shares may be sold on the open market at any given time, which could
place downward pressure on the trading price of our common stock.


Our Stockholders May Experience  Substantial  Dilution as a Result of Our Recent
PIPE  Financings  and the  Anti-Dilution  Provisions  Contained  Therein or as a
Result of Future Financings.

The current market price of our common stock and the price at which investors in
the May 2004 PIPE and the July 2004 PIPE purchased shares of our common stock is
significantly  higher than the book value of our common stock. Had the 2004 PIPE
transactions  occurred in aggregate as of March 31, 2004,  the  investors  would
have invested,  net of fees, an amount equal to  approximately  $12.3 million in
excess of our total  stockholders'  equity as of that  date,  but would own only
approximately 16% of our outstanding common stock.

Although we believe that we have  sufficient  funds to continue  our  operations
through 2004, we may need to arrange additional financing to fund our operations
in 2005 or thereafter. There can be no assurance that additional financing would
be  available,  or it if is  available,  that it would be on  acceptable  terms.
Additionally,  the shares issued pursuant to the May 2004 PIPE and the July 2004
PIPE and the related warrants for each have an  anti-dilution  feature that will
require us to issue  additional  shares to the PIPE  investors  and modify their
outstanding  warrants if we subsequently  issue additional equity at a per share
price of less than  $0.40 for a period of one year from the  respective  closing
dates, except under the provisions of previously  outstanding  convertible debt,
option plans, or option or warrant agreements.  If we find it necessary to issue
additional  common stock to fund our  operations  in the year  following the May
2004  PIPE and the July  2004  PIPE,  all of our  stockholders  will  experience
dilution;  if the terms of the potential future financing  require that we issue
shares of our common  stock at a price of less than $0.40 per share,  holders of
our  common  stock  prior  to  the  2004  PIPEs  will  experience  even  greater
proportional dilution.


Our  Common  Stock is  Subject  to the  "Penny  Stock"  Rules of the SEC and the
Trading Market In Our  Securities is Limited,  Which Makes  Transactions  in Our
Stock Cumbersome and May Reduce the Value of an Investment in Our Stock.


                                       8


Shares of our common stock are "penny  stocks" as defined in the  Exchange  Act,
which are traded in the Over-The-Counter  Market on the OTC Bulletin Board. As a
result,  investors may find it more  difficult to dispose of or obtain  accurate
quotations  as to the price of the shares of the common  stock being  registered
hereby. In addition, the "penny stock" rules adopted by the Commission under the
Exchange  Act  subject  the sale of the  shares of our  common  stock to certain
regulations  which impose sales practice  requirements  on  broker/dealers.  For
example,  brokers/dealers  selling such securities  must, prior to effecting the
transaction, provide their customers with a document that discloses the risks of
investing in such securities. Included in this documents are the following:

o    the bid and offer price quotes in and for the "penny stock", and the number
     of shares to which the quoted prices apply.

o    the brokerage firm's compensation for the trade.

o    the  compensation  received by the  brokerage  firm's  sales person for the
     trade.

In addition, the brokerage firm must send the investor:

o    a monthly  account  statement  that gives an  estimate of the value of each
     "penny stock" in the investor's account.

o    a written  statement of the investor's  financial  situation and investment
     goals.

Legal remedies,  which may be available to you as an investor in "penny stocks",
are as follows:

o    if "penny  stock" is sold to you in violation of your rights  listed above,
     or other federal or states  securities laws, you may be able to cancel your
     purchase and get your money back.

o    if the stocks are sold in a fraudulent  manner,  you may be able to sue the
     persons and firms that caused the fraud for damages.

o    if you have  signed  an  arbitration  agreement,  however,  you may have to
     pursue your claim through arbitration.

If the person  purchasing  the  securities  is someone  other than an accredited
investor or an established customer of the broker/dealer, the broker/dealer must
also  approve  the  potential   customer's  account  by  obtaining   information
concerning  the  customer's  financial  situation,   investment  experience  and
investment objectives.  The broker/dealer must also make a determination whether
the  transaction  is suitable  for the  customer  and whether the  customer  has
sufficient  knowledge  and  experience  in  financial  matters to be  reasonably
expected  to  be  capable  of  evaluating  the  risk  of  transactions  in  such
securities.  Accordingly,  the  Commission's  rules  may  limit  the  number  of
potential purchasers of the shares of our common stock.

Resale restrictions on transferring "penny stocks" are sometimes imposed by some
states,  which may make  transaction  in our stock more difficult and may reduce
the value of the investment.  Various state securities laws pose restrictions on
transferring  "penny stocks" and as a result,  investors in our common stock may
have the ability to sell their shares of our common stock impaired.


                          Risks Related to Our Business

We May Be  Unsuccessful  in  Implementing  Our  Consolidation,  Development  and
Marketing Plans as Anticipated.

We are in the process of consolidating our manufacturing  facilities in a single
facility at our Rockville, Maryland location. In addition to internal validation
and comparability  studies that we conduct in conjunction with our manufacturing
consolidation,  the  FDA  must  approve  our  facility  changes  and  urine  EIA
manufacturing  operations in Rockville before we will be permitted to sell urine
EIA tests manufactured at that facility in the US. If the consolidation does not
proceed as planned,  or if the FDA does not approve the facility  changes on the
timeline  anticipated,  the  anticipated  cost  reductions  as well as increased
efficiencies may not occur.  There can be no assurance that we will successfully
complete the  development  and  commercialization  of our rapid tests  currently
under development,  or that our international  marketing efforts with respect to
these tests will result in significant additional sales. Additionally, there can
be no assurance  that we will be able to  successfully  negotiate  government or
private-sector  contracts  for  mass-testing  applications.   Consequently,  our
current financial  resources and available  financing may be inadequate,  and we
may  have to seek  additional  financing,  which  may  not be  available  on the
timetable  required  or on  acceptable  terms,  or we may  have to  curtail  our
operations, or both.


                                       9


In conjunction with our manufacturing  consolidation,  we expect that we will be
unable to  produce  our  HIV-1  Urine  EIA  product  for sale in the US until we
complete the required  validation  and  comparability  studies at our  Rockville
facility  that will be  necessary  for FDA  review and  approval.  We expect FDA
review and approval of our Rockville  facility to be completed  during the first
quarter of 2005. We believe we have manufactured  sufficient  inventories of our
HIV 1 Urine EIA test to continue to satisfy expected  customer orders during the
transition period. We have considered  historical sales levels and the length of
time  required  to  complete  the  consolidation  and  obtain  FDA  approval  in
determining  the amount of inventory  required to bridge the transition  period.
Demand could  significantly  exceed  historical  levels,  and  consolidation  of
operations or FDA approval  could take longer than  expected.  If one or more of
these events  occur,  then our  transition  inventory  may not be  sufficient to
supply customer  orders and we may lose business that we may find difficult,  or
impossible,  to replace.  Alternatively,  demand could fall significantly  below
historical levels, in which case we will have built excess inventory that we may
have to dispose of at additional cost, or at a loss.

Our Customers May Not Be Able to Satisfy Their  Contractual  Obligations  and We
May Not Be Able to Deliver Our Products as a Result of the Impact of  Conditions
Such as Severe Acute Respiratory Syndrome ("SARS") or Other World Events.

Our expected  first quarter 2003  shipment of urine HIV  screening  tests to our
distributor  in the  People's  Republic  Of China  was  delayed  until the third
quarter of 2003 in part as a result of the impact of the SARS  outbreak  in that
country.  Our distributor has reported that both potential  patients and medical
personnel were  reluctant to visit or report for work at hospitals,  clinics and
other sites for fear of contracting or spreading  SARS and,  consequently,  both
diagnostic   and   therapeutic   procedures   were   postponed.    Additionally,
governmentally-imposed  facility closures and quarantine  restrictions disrupted
the ability of the  distributor to receive and  distribute  our HIV tests.  This
situation may recur.

Our business model and future revenue forecasts call for a significant expansion
of sales in the People's  Republic of China as well as in Russia and Africa upon
successful  completion of the rapid product evaluation and regulatory  approval.
Should conditions beyond our control,  such as SARS, redirect attention from the
worldwide  HIV/AIDS  epidemic,  our customers' ability to meet their contractual
purchase obligations or our ability to supply product internationally for either
evaluation or commercial  use may prevent us from achieving the revenues we have
projected.  As a result,  we may have to seek additional  financing  beyond that
which we have projected, which may not be available on the timetable required or
on acceptable terms that are not substantially dilutive to our stockholders,  or
we may have to curtail our operations, or both.

Our Quarterly  Results May Fluctuate  Due to Certain  Regulatory,  Marketing and
Competitive Factors Over Which We Have Little or No Control.

The  factors  listed  below,  some of which we  cannot  control,  may  cause our
revenues and results of operations to fluctuate significantly:

o    actions  taken by the FDA or  foreign  regulatory  bodies  relating  to our
     existing  products or products we are  currently  developing  or seeking to
     develop;

o    the extent to which our  current  or  proposed  new  products  gain  market
     acceptance;

o    the timing and size of purchases by our laboratory customers,  distributors
     or joint venture partners;

o    introductions of alternative means for testing for HIV by competitors;

o    changes in the way requlatory  authorities evaluate HIV testing,  including
     supplemental testing of the domestic blood supply; and

o    customer  concerns  about the  stability of our business  which could cause
     them to seek alternatives to our product.

Our Research,  Development and Commercialization  Efforts May Not Succeed or Our
Competitors  May  Develop  and   Commercialize   More  Effective  or  Successful
Diagnostic Products.

In order to remain competitive,  we must regularly commit substantial  resources
to research and development and the commercialization of new products.


                                       10


The research and development  process  generally  takes a significant  amount of
time and money from  inception to  commercial  product  launch.  This process is
conducted in various stages.  During each stage there is a substantial risk that
we will not achieve our goals on a timely  basis,  or at all, and we may have to
abandon a product in which we have invested substantial amounts of money.

During the year ended  December  31, 2003 and in the first  quarter of 2004,  we
incurred  $1.5  million  and  $0.5  million,   respectively,   in  research  and
development  expenses.  We expect to incur even more significant  costs from our
research and development activities in the future.

A primary  focus of our  efforts  has been,  and is  expected to continue to be,
rapid HIV tests, which are currently under development. However, there can be no
assurance  that we will  succeed in our research  and  development  efforts with
respect to rapid tests or other technologies or products.

Successful  products require significant  development and investment,  including
testing,  to  demonstrate  their  cost-effectiveness  or other benefits prior to
commercialization. In addition, regulatory approval must be obtained before most
products may be sold.  Additional  development efforts on these products will be
required   before  any  regulatory   authority  will  review  them.   Regulatory
authorities  may not approve these  products for  commercial  sale. In addition,
even if a product is  developed  and all  applicable  regulatory  approvals  are
obtained,  there may be little or no market for the product, or we may be unable
to obtain  the  requisite  licenses  to sell the  product  or to  qualify  for a
government  tender,  which are often requirements in third world countries where
the  greatest  need  and  largest  market  for HIV  diagnostic  testing  exists.
Accordingly,  if we fail to  develop  commercially  successful  products,  or if
competitors  develop more  effective  products or a greater number of successful
new products,  or there are  governmental  limitations  affecting our ability to
sell our  products,  customers  may  decide  to use  products  developed  by our
competitors.  This would result in a loss of revenues and  adversely  affect our
results of operations, cash flows and business.

We Have Limited Experience Selling and Marketing Our HIV-1 Urine ELISA Tests and
No Experience Marketing a Rapid Test.

Our  urine-based  ELISA products  incorporate a unique method of determining the
presence of HIV antibodies and we have limited experience  marketing and selling
them either  domestically  or  internationally.  Further,  we have no experience
marketing  and  selling  blood or oral fluid  products.  Our  company's  success
depends upon alliances with  third-party  international  distributors  and joint
venture partners and upon our ability to penetrate  expanded markets.  There can
be no assurance that:

o    our international  distributors and joint ventures will successfully market
     our products;

o    our domestic selling efforts will be effective;

o    we will obtain any expanded degree of market  acceptance among  physicians,
     patients or health care payors;  or others in the medical or public  health
     community,  including governments and humanitarian funding sources critical
     in may  international  markets,  which are essential for  acceptance of our
     products; or

o    if our  relationships  with  distributors  terminate,  we  will  be able to
     establish  relationships with other distributors on satisfactory  terms, if
     at all.

We have had FDA  approval  to market  our  current  urine  HIV-1  screening  and
supplemental  tests in the United States and have been marketing  these products
since  1998.  We have not yet  introduced  either an HIV-1/2  product or a rapid
point of care  test,  both of which are  necessary  in many  areas of the world.
Further,  we have not achieved  significant  market penetration with our current
ELISA tests  within  domestic or  international  markets.  A  disruption  in our
distribution,  sales or marketing  network  could reduce our sales  revenues and
cause  us to  either  cease  operations  or  expend  more  resources  on  market
penetration  efforts than are available to us without  affecting  other parts of
our business.

We Currently  Depend Upon the Viability of Three  Primary  Products -- Our HIV-1
Urine-Based Screening Test and Our Urine and Blood Based Supplemental Tests.


                                       11


Our HIV-1  urine-based  screening  test and urine and  blood-based  supplemental
tests are our  current  products.  Our sales of these  products  for the quarter
ended March,  2004 increased by 24% compared to the  comparable  period in 2003.
There can be no  assurance,  however,  that such a trend will continue and, even
with the increase,  we still incurred a loss from operations for the quarter. If
we cannot  profitably  introduce  new  products  on a timely  basis and if these
products  and our  screening  and  supplemental  tests  fail to  achieve  market
acceptance or generate significant revenues, we may have to cease operations.

We May Not be Able to Successfully  Develop and Market New Products That We Plan
to Introduce.

We plan to develop other urine-based diagnostic products including rapid HIV-1/2
screening tests,  tests for other infectious  diseases or health  conditions and
serum-based  and oral-fluid  based rapid HIV-1/2  screening  tests.  We are also
transfering  technology  from the  Centers for  Disease  Control and  Prevention
("CDC") for an HIV ELISA incidence test and plan to develop, along with the CDC,
a blood-based rapid HIV test for diagnostic and surveillance purposes. There are
numerous  developmental and regulatory issues that may preclude the introduction
of these  products into  commercial  sale. If we are unable to  demonstrate  the
feasibility  of  these  products,   successfully  transfer  the  technology  for
commercial-scale  manufacturing to either internal,  joint venture or outsourced
manufacturers  or meet  regulatory  requirements  or  resolve  potential  patent
licensing or  government  distribution  licensing  requirements  with respect to
their  marketing,  we may have to abandon them and alter our business plan. Such
modifications to our business plan will likely delay  achievement of sustainable
cash flow from product sales and profitability. As a result, we may have to seek
additional financing, which may not be available on the timetable required or on
acceptable terms, or we may have to curtail our operations, or both.


A Market for Our Products May Not Develop.

Our future  success  will depend,  in part,  on the market  acceptance,  and the
timing of such acceptance, of new products such as our developmental stage rapid
HIV tests and  other new  products  or  technologies  that may be  developed  or
acquired.  To achieve  market  acceptance,  we must make  substantial  marketing
efforts and spend significant funds to inform potential customers and the public
of the perceived benefits of these products.  We currently have limited evidence
on which to evaluate the market reaction to products that may be developed,  and
there can be no assurance  that any products will obtain market  acceptance  and
fill the market need that is perceived to exist.


Our Success Depends on Our Ability to Protect Our Proprietary Technology.

The  diagnostics  test  industry  places  considerable  importance  on obtaining
patent,  trademark,  and trade secret protection,  as well as other intellectual
property  rights,  for new  technologies,  products and  processes.  Our success
depends,  in part, on our ability to develop and maintain a strong  intellectual
property  portfolio or obtain licenses to patents for products and  technologies
both in the United States and in other countries.

As  appropriate,  we  intend  to file  patent  applications  and  obtain  patent
protection for our proprietary technology. These patent applications and patents
will cover, as applicable,  compositions of matter for our products,  methods of
making those products,  methods of using those products,  and apparatus relating
to the use or manufacture of those products. We will also rely on trade secrets,
know-how, and continuing  technological  advancements to protect our proprietary
technology.  There is,  however,  no  assurance  that we will be  successful  in
obtaining any patent protection.

We have entered,  and will continue to enter,  into  confidentiality  agreements
with our employees,  consultants,  advisors and  collaborators.  However,  these
parties may not honor these  agreements  and we may not be able to  successfully
protect  our  rights to  unpatented  trade  secrets  and  know-how.  Others  may
independently  develop  substantially  equivalent  proprietary  information  and
techniques or otherwise gain access to our trade secrets and know-how.

Many of our  employees,  including  scientific and  management  personnel,  were
previously employed by competing companies. Although we encourage and expect all
of  our  employees  to  abide  by any  confidentiality  agreement  with a  prior
employer,  competing  companies may allege trade secret  violations  and similar
claims against us.

We may collaborate with  universities and  governmental  research  organizations
which,  as a  result,  may  acquire  part of the  rights  to any  inventions  or
technical information derived from collaboration with them.


                                       12


We may incur substantial costs and be required to expend  substantial  resources
in asserting or protecting our  intellectual  property  rights,  or in defending
suits against us related to intellectual  property  rights.  Disputes  regarding
intellectual  property rights could  substantially  delay product development or
commercialization  activities.  Disputes regarding  intellectual property rights
might  include  state,  federal or foreign  court  litigation  as well as patent
interference,  patent  reexamination,  patent reissue,  or trademark  opposition
proceedings  in the United  States Patent and  Trademark  Office.  Opposition or
revocation  proceedings  could be  instituted  in a foreign  patent  office.  An
adverse decision in any proceeding regarding  intellectual property rights could
result in the loss or  limitation  of our rights to a patent,  an  invention  or
trademark.

We are Dependent Upon Patents,  Licenses and Other Proprietary Rights From Third
Parties.

To facilitate  development  and  commercialization  of a proprietary  technology
base, we may need to obtain licenses to patents or other proprietary rights from
other parties.  Obtaining and maintaining  such licenses may require the payment
of substantial  amounts. In addition,  we currently have the right to use patent
and  proprietary  rights which are material to the  manufacture  and sale of our
HIV-1  urine-based  screening  test  under  licensing  agreements  with New York
University,  Cambridge Biotech  Corporation and the Texas A&M University System.
We also have the right to use  patent and  proprietary  rights  material  to the
manufacture  and sale of our HIV-1  serum- and  urine-based  supplemental  tests
under a licensing  agreement with National Institutes of Health. We will require
license  agreements  from certain of these  parties or other patent  holders for
technologies  used in our rapid tests and other  potential new  products.  As of
March 31, 2004 we had accrued an aggregate of approximately $387,000 in past due
royalty  obligations  to our  patent  licensors.  In  the  event  our  financial
condition  inhibits  our ability to pay royalty  payments  due under our license
agreements,  our rights to use those  licenses could be jeopardized in the event
of a default in payment of  royalties.  Specifically,  during the 2003  calendar
year and the first quarter of 2004, revenues subject to the New York University,
Cambridge  Biotech and Texas A&M license  agreements  were $2.0 million and $0.6
million, respectively, and revenues subject to the National Institutes of Health
agreement  were $1.3 million and $0.4 million in calendar  2003 and in the first
quarter of 2004,  respectively.  The loss of any of the foregoing licenses could
have a  materially  adverse  effect on our  ability to  continue  to produce our
products since the license agreements provide necessary proprietary processes or
components for the manufacture of our products.

The Sales  Potential  for the Rapid  Test  Products  We Are  Developing  Will be
Affected by Our Ability to Obtain Certain Licenses.

There are two primary  factors that will affect the specific  countries in which
we will be able to sell our  rapid  HIV tests  that are  under  development  and
therefore the overall sales potential of the tests. One factor is whether we can
arrange a sublicense or distribution  agreement related to patents for detection
of the HIV-2  virus.  HIV-2 is a type of the HIV virus  estimated to represent a
small  fraction  of the  known  HIV  cases  worldwide.  Nevertheless,  HIV-2  is
considered to be an important  component in the testing  regimen for HIV in many
markets.  Access to a license for one or more HIV-2  patents may be necessary to
sell HIV-2 tests in countries where such patents are in force, or to manufacture
in  countries  where  such  patents  are in force and then sell into  non-patent
markets.

Another  factor that may affect the specific  countries in which we will be able
to sell  our  rapid  HIV-1 or HIV-2  tests,  and  therefore  the  overall  sales
potential,  concerns  whether  we  can  arrange  a  sublicense  or  distribution
agreement  related to any patents  which claim  lateral  flow assay  methods and
devices covering the our rapid HIV tests or their use. Our  developmental  stage
tests are lateral flow assay devices that test for specific  antibodies or other
substances.  There are numerous patents in the United States and other countries
which claim  lateral flow assay  methods and devices.  Some of these patents may
broadly cover the technology used in our rapid test products and are in force in
the United  States and other  countries.  We may not be able to make or sell our
rapid test products in countries where these patents are in force.

In the event  that it is  determined  that a license is  required  and it is not
possible to negotiate a license agreement under a necessary patent,  our ability
to manufacture  and sell our rapid  products may be delayed or limited.  In such
case,  we may be able to modify our rapid tests such that a license would not be
necessary.  However,  this alternative may not be possible,  or, if feasible, it
could  delay or limit our ability to sell our rapid test  products,  which would
adversely affect our results of operations, cash flows and business.


                                       13


We Rely on Sole  Source  Suppliers  that We Cannot  Quickly  Replace for Certain
Components Critical to the Manufacture of Our Products.

Among the critical items we purchase from  qualified  sole source  suppliers are
various conjugates,  fetal bovine serum, and HIV-positive and HIV-negative urine
samples.  Any delay or  interruption in the supply of these or other sole source
components could have a material adverse effect on us by significantly impairing
our ability to manufacture products in sufficient quantities, particularly as we
increase  our  manufacturing  activities  in support  of  commercial  sales.  In
addition,  if our  financial  condition  reduces our ability to pay for critical
components on a timely basis,  our suppliers may delay or cease selling critical
components  to us,  which  could also  impair our  ability  to  manufacture.  We
typically do not have long-term supply agreements with these suppliers,  instead
using  purchase  orders to  arrange  for our  purchases  of  materials,  so that
suppliers  could delay or decline to ship  components  until  payment is made in
advance or on a COD basis.

We Have Limited  Experience in Manufacturing  Our Products and Little Experience
in Manufacturing Our Products In Commercial Quantities.

Turnover among our  manufacturing  personnel as a result of our consolidation of
the operations into our Rockville  facility has  necessitated  the hiring of new
manufacturing  personnel.  Such turnover has, in the past,  resulted in material
production difficulties including problems involving:

o    scaling up production of new products;

o    developing market acceptance for new product;

o    production yields;

o    quality control and assurance;

o    raw material supply; and

o    shortages of qualified personnel.

The current consolidation of manufacturing operations to our Rockville facility,
technology transfer and manufacturing  transitions and scale-ups in which we may
engage in the future could affect our ability to meet increases in demand should
our  products  gain market  acceptance  and could impede the growth of our sales
revenues.

In an Effort  to Scale Up Our  Manufacturing  Capacity  Quickly,  We May  Engage
Contract  Manufacturers  to Produce Some of Our  Products,  Including  Our Rapid
Tests Currently Under Development.

Outsourcing some of our  manufacturing  processes to contract  manufacturers may
permit us to expand our  manufacturing  capacity more  quickly,  but it may also
subject us to problems in such areas as:


o    lack of technical knowledge regarding regulated procedures;

o    uncertain or unreliable production yields;

o    maintaining quality control and assurance;

o    regulatory  compliance,  since most rapid test manufacturers do not produce
     products that are as stringently controlled as HIV diagnostics; and

o    Misappropriation   of  intellectual   property,   particularly  in  foreign
     countries where patent  protection is less stringent,  and depending on the
     extent of manufacturing processes that are outsourced.

The  Success  of Our Plans to Enter  International  Markets  May Be  Limited  or
Disrupted  Due to Risks  Related to  International  Trade and  Marketing and the
Capabilities of Our Distributors, Manufacturers and Joint Venture Partners.

Following the  anticipated  completion of the development of our rapid tests, we
believe that sales to  international  distributors  and/or joint  ventures  will
generate a significant  portion of our revenues for the next several  years.  We
believe  that our  urine and oral  fluid-based  tests  can  provide  significant
benefits in countries that do not have the facilities or personnel to safely and
effectively  collect and test blood  samples.  However,  sales to  international


                                       14


customers accounted for only 5% of our revenue in our fiscal year ended December
31,  2003 and less  than 1% of our  revenue  in the  first  quarter  of 2004.  A
majority  of the  companies  with which we compete in the sale of HIV  screening
tests actively market their diagnostic products outside of the U.S. In addition,
as regulatory requirements for HIV screening tests outside the United States are
less demanding than those of the FDA, we compete with our EIA products against a
much wider range of competitors that may not be FDA approved. Manufacturers from
Japan,  Canada,  Europe,  and Australia offer a number of HIV screening tests in
those markets  including  HIV-1/2  tests,  rapid tests and other non-EIA  format
tests,  which  are not  approved  for sale in the U.S.  market.  There can be no
assurance that our products will compete  effectively  against these products in
foreign markets, or that these competing products will not achieve FDA approval.
The following risks may limit or disrupt our international sales:

o    the imposition of government controls (regulatory approval);

o    export license requirements;

o    domestic license requirements;

o    political instability;

o    trade restrictions;

o    changes in tariffs;

o    difficulties   in  managing   international   operations   (difficulty   in
     establishing  a  relationship  with a foreign  distributor,  joint  venture
     partner, or contract manufacturer with the financial and logistical ability
     to maintain quality control of product);

o    the ability to secure licenses for intellectual property or technology that
     are  necessary  to  manufacture  or  sell  our  products  in  the  selected
     countries;

o    fluctuations in foreign currency exchanges rates;

o    the  financial  stability of our  distributors  and/or  their  expertise in
     obtaining local country regulatory approvals;

o    the  financial  capabilities  of potential  customers  in  lesser-developed
     countries or, alternatively,  our inability to obtain approvals which would
     enable such countries access to outside financing, such as the World Bank;

o    the ability of our distributors to successfully sell into their contractual
     market territory or to successfully cover their entire territory;

o    the  possibility   that  a  distributor  may  be  unable  to  meet  minimum
     contractual commitments;

o    establishing market awareness; and

o    external  conditions such as regional  conflicts or health crises resulting
     from SARS.

Some of our distributors have limited international marketing experience.  There
can be no assurance that these distributors will be able to successfully  market
our  products in foreign  markets.  Any such  failure  will delay or disrupt our
plans to expand the Company's business.

The Chinese  Government Could Change Its Policies Toward Private  Enterprises or
Even  Nationalize or Expropoiate  Them,  Which Could Result in the Total Loss of
Business in That Country.

We have established a joint venture in China and are currently  planning to sell
both our existing  products and our rapid products  currently under  development
through  it.  Our  business  in  China  is  subject  to  political  or  economic
uncertainties  and may be adversely  affected by political,  economic and social
developments in China. Over the past decade,  the Chinese government has pursued
economic  reform  policies,  including  the  encouragement  of private  economic
activity  and greater  economic  decentralization.  The Chinese  government  may
choose to end these policies or alter them  significantly  to our detriment with
little, if any, prior notice.

Changes in policies,  laws and  regulations  or in their  interpretation  or the
imposition of taxation,  restrictions  on currency  conversion,  restrictions or
devaluations  of currency,  nationalization  or other  expropriation  of private
enterprises  could  have a material  adverse  effect on our  business  in China.
Nationalization  or expropriation  could result in the total loss of business in
China.


                                       15


We Face Intense  Competition in the Medical Diagnostic Products Market and Rapid
Technological Advances by Competitors.

Competition  in our  diagnostic  market is intense and we expect it to increase.
The marketplace  where we sell our products is divided into two categories:  (i)
screening,  and  (ii)  supplemental  testing.  Within  the  United  States,  our
competitors   for  screening   tests   include  a  number  of   well-established
manufacturers of HIV tests using blood samples, plus at least one system for the
detection  of HIV  antibodies  using oral  fluid  samples.  In the  supplemental
testing category of the market, we offer the only FDA approved  urine-based test
as  well as a  blood-based  test.  One  other  company  offers  an FDA  approved
supplemental  blood test. In addition to our urine and blood-based  confirmation
test, there is also an oral mucosal transidate  (saliva) based supplemental test
to complement  the  oral-fluid  screening  test.  Many of our  competitors  have
significantly  greater financial,  marketing and distribution  resources than we
do. Our  competitors  may succeed in  developing or marketing  technologies  and
products  that are more  effective  than ours,  including  several  recently-FDA
approved rapid blood tests. In addition, as the anticipated acceptance for urine
testing  grows,  we may  experience  competition  from  companies in areas where
intellectual  property  rights  may  not be as  stringent  as in the  US.  These
developments   could   render  our   technologies   or   products   obsolete  or
noncompetitive  or  otherwise  affect our ability to  increase  or maintain  our
products' market share.

Our Research and  Development  of HIV Urine Tests Involves the Controlled Use of
Hazardous Materials.

There can be no assurance that the Company's safety  procedures for handling and
disposing  of  hazardous  materials  such as azide will comply  with  applicable
regulations.  For example,  azide, when present in high  concentrations  and not
diluted with water, can have an explosive reaction.  Azide is a chemical used as
a  preservative  in our  kits.  In  addition,  we cannot  eliminate  the risk of
accidental  contamination or injury from these materials.  We may be held liable
for  damages  from such an  accident  and that  liability  could have a material
adverse effect on the Company.

We May Not Be Able to Retain Our Key  Executives  and Research  and  Development
Personnel.

As a small  company,  our success  depends on the  services of key  employees in
executive and research and  development  positions.  The loss of the services of
one or more of such employees could have a material adverse effect on us.

As a Small  Manufacturer  of  Medical  Diagnostic  Products,  We Are  Exposed to
Product  Liability and Recall Risks For Which  Insurance  Coverage is Expensive,
Limited and Potentially Inadequate.

We  manufacture  medical  diagnostic  products,  which  subjects  us to risks of
product liability claims or product recalls,  particularly in the event of false
positive or false negative  reports.  A product  recall or a successful  product
liability  claim or claims  that  exceed  our  insurance  coverage  could have a
material  adverse effect on us. We maintain a $10,000,000  claims made policy of
product liability insurance.  However, product liability insurance is expensive.
In the future we may not be able to obtain  coverage on acceptable  terms, if at
all.  Moreover,  our  insurance  coverage  may not  adequately  protect  us from
liability  that we incur in  connection  with  clinical  trials  or sales of our
products.

Our Charter Documents May Inhibit a Takeover.

Certain provisions of our Certificate of Incorporation and Bylaws could:

o    discourage potential  acquisition  proposals (i.e.  shareholder rights plan
     also known as a "poison pill");

o    delay or prevent a change in control of Calypte;

o    diminish  stockholders'  opportunities  to participate in tender offers for
     our common stock,  including tender offers at prices above the then-current
     market price;

o    inhibit increases in the market price of our common stock that could result
     from takeover attempts; or

o    grant to the  Board  of  Directors  the  discretionary  right to  designate
     specific  rights and  preferences of preferred  stock greater than those of
     our common stock.

We Have  Adopted  a  Stockholder  Rights  Plan  That Has  Certain  Anti-takeover
Effects.


                                       16


On December  15, 1998,  the Board of  Directors  of Calypte  declared a dividend
distribution   of  one  preferred   share  purchase  right  ("Right")  for  each
outstanding  share of common stock of the  Company.  The dividend was payable to
the  stockholders  of record on  January  5, 1999 with  respect to each share of
common stock issued thereafter until a subsequent "distribution date" defined in
a Rights  Agreement  and, in certain  circumstances,  with  respect to shares of
common stock issued after the Distribution Date.

The Rights have certain anti-takeover effects. The Rights will cause substantial
dilution  to a person or group that  attempts  to acquire  the  Company  without
conditioning  the offer on the Rights being redeemed or a substantial  number of
Rights being acquired.  However, the Rights should not interfere with any tender
offer,  or merger,  which is approved  by the Company  because the Rights do not
become  exercisable  in the event of an offer or other  acquisition  exempted by
Calypte's Board of Directors.

Our Board of  Directors  has Certain  Discretionary  Rights With  Respect to Our
Preferred   Shares  That  May   Adversely   Effect  the  Rights  of  our  Common
Stockholders.

Our Board may, without shareholder  approval,  designate and issue our preferred
stock in one or more series.  Additionally,  our Board may  designate the rights
and  preferences  of each series of preferred  stock it designates  which may be
greater  than the rights of our common  stock.  Potential  effects on our common
stock may include among other things:

o    restricting dividends;

o    dilution of voting power;

o    impairment of liquidation rights; and

o    delay or preventing a change in control of the Company.

Additionally,  following  the 1:30 reverse split of our common stock that became
effective in May 2003, we currently have over 500 million shares of common stock
that could be issued without further stockholder approval. Although there are no
current  plans to issue such a large number of shares,  the  dilution  resulting
from such issuance could also adversely  affect the rights of our current common
stockholders.

              Risks Related to Regulatory Approvals and Clearances

The Time  Needed to Obtain  Regulatory  Approvals  and  Respond  to  Changes  in
Regulatory Requirements Could Adversely Affect Our Business.

Our  proposed and existing  products  are subject to  regulation  by the FDA and
other governmental or public health agencies.  In particular,  we are subject to
strict  governmental  controls  on  the  development,   manufacture,   labeling,
distribution and marketing of our products.  In addition,  we are often required
to obtain approval or registration with foreign governments or regulatory bodies
before we can import and sell our products in foreign countries.

The process of obtaining  required  approvals or clearances from governmental or
public  health  agencies can involve  lengthy and detailed  laboratory  testing,
human clinical  trials,  sampling  activities  and other costly,  time-consuming
procedures.  The  submission of an  application  to the FDA or other  regulatory
authority  does not guarantee  that an approval or clearance to market a product
will be received.  Each authority may impose its own  requirements  and delay or
refuse to grant  approval or clearance,  even though a product has been approved
in another country or by another agency.

Moreover, the approval or clearance process for a new product can be complex and
lengthy.  This time span  increases our costs to develop new products as well as
the risk that we will not succeed in  introducing  or selling them in the United
States or other countries.

Newly  promulgated  or  changed  regulations  could  also  require us to undergo
additional trials or procedures,  or could make it impractical or impossible for
us to market our products for certain uses, in certain markets, or at all.


                                       17



Failure to Comply With FDA or Similar  International  Regulatory Bodies or Other
Requirements  May Require Us to Suspend  Production of Our Products  Which Could
Result in a Loss of Revenues.

We can manufacture and sell products, both in the United States and abroad, only
if we comply with  regulations  of government  agencies such as the FDA. We have
implemented quality assurance and other systems that are intended to comply with
applicable regulations in the United States.

Although  we  believe  that  we have  adequate  processes  in  place  to  ensure
compliance with these requirements, the FDA could force us to stop manufacturing
our  products if it  concludes  that we are out of  compliance  with  applicable
regulations.  The FDA could  also  require us to recall  products  if we fail to
comply with applicable  regulations,  which could force us to stop manufacturing
such  products.  We will face similar risks when we establish our  international
manufacturing operations.


                                       18




                          SUMMARY OF RECENT FINANCINGS

In April 2002,  we announced  that we planned to wind down our  operations  as a
result of  insufficient  working  capital  and the lack of funds  with  which to
continue our operations and business  plan. In May 2002,  however,  prior to the
complete  cessation of our  operations,  we received a financing  commitment and
restarted  our  operations.   We  subsequently   negotiated  several  additional
financings which have enabled us to sustain operations. In July 2003, we filed a
registration  statement  for the  Common  Stock  underlying  approximately  $7.8
million of these financings. In June 2004, we filed a registration statement for
the Common Stock  underlying  an additional  $22.5 million of these  financings.
Since May 2002 through July 14, 2004, we have raised approximately $31.8 million
in gross  proceeds  from the  intial  restart  financings  and  those  completed
subsequently.  The following table summarizes these financings by major category
and the subsequent table provides the details of these financings.  (Both tables
are in thousands, except share price and per share data in the second table. All
share  amounts and per share  prices  reflect the  post-split  basis of the 1:30
reverse  stock  split  approved  by our  stockholders  on May 20, 2003 and which
became effective on May 28, 2003.)




                                                                      Total
                                              Gross    Net            Shares          Shares      Shares being
        Financing Source                   Proceeds    Proceeds       Issued        Issuable       Registered
        ----------------                   --------   --------       --------      ---------      -------------
                                                                                    
        Securities in July 2003
         Registration Statement: (1)

          8% Convertible Notes              $ 3,232     $ 2,594      46,084.3              -               -
          Other Restart Financings              750         730       2,720.3              -               -
          Mercator 12% and 10%
             Debentures                       3,850       2,950      32,229.3          100.0               -
                                            -------     -------     ---------       --------        --------
                                              7,832       6,274      81,033.9          100.0               -
                                            -------     -------     ---------       --------        --------
        Securities in July 15, 2004 Registration Statement (3):

          Mercator 12% Debentures:
             Purchased by Marr                  570         570       5,181.8              -               -
             Purchased by others                130         130         118.4     (2)  158.8               -

          Marr Private Placements            12,500      11,900      28,333.3              -               -
          Warrants issued in
             connection with Marr 5%
             Promissory Note
             Commitment                           -           -             -        1,275.0               -

          May 2004 Private Placement:
             PIPE at $0.40 per share          9,300       8,769      23,250.0              -               -
             Warrant at $0.50 per
               share                              -           -             -        8,767.5               -
                                            -------     -------     ---------       --------        --------
                                             22,500      21,369      56,883.5       10,201.3               -
                                            -------     -------     ---------       --------        --------

        New securities in this
         Registration Statement

          July 2004 Private Placement

          PIPE at $0.40 per share             1,488       1,384       3,720.0              -         3,720.0
          Warrant at $0.50 per shares             -           -             -        2,752.8         2,752.8
                                            -------     -------     ---------       --------        --------
                                              1,488      1,384        3,720.0        2,752.8         6,472.8

        Total                               $31,820     $29,027     141,637.4       13,054.1         6,472.8
                                            =======     =======     =========       ========        ========



- ----------------

(1)  The registration statement for the shares underlying these financings (File
     No.  333-106862)  became  effective on July 18, 2003. In that  registration
     statement,  we  registered  52.5 million  shares of our common stock on the
     basis  of  a  then-current  market  price  applicable  to  the  convertible
     securities of approximately $0.28 per share, before contractual  discounts.
     Shortly following the effectiveness of the registration statement,  many of
     the  investors  holding the  convertible  notes and  debentures  elected to
     convert their holdings into shares of our stock


                                       19


     and to immediately sell the shares.  The market price of our stock declined
     significantly  and the holders  were unable to convert all of the notes and
     debentures  into registered  shares of common stock.  Many of the investors
     chose to  convert  at the lower,  then-current  market  price and we issued
     restricted  shares of our common  stock to the holders of such  convertible
     notes  and  debentures.  Many of  these  holders  subsequently  sold  their
     restricted  shares  under the  provisions  of Rule 144.  The June 15,  2004
     registration  statement  included  approximately  12.2 million  outstanding
     restricted  shares  of our  common  stock  issued to these  holders  of the
     convertible notes and debentures.

(2)  The market  price of Calypte  common  stock on July 14,  2004 was $0.51 per
     share.  The  average of the three  lowest  trades  for the 20 trading  days
     preceding  July 14,  2004 is $0.487  per  share,  which,  adjusted  for the
     applicable  discount,  is the basis for the  determination of the number of
     shares issuable pursuant to convertible  debentures which have not yet been
     converted. See also Note 11 in Detail of Financings, following.

(3)  The registration statement for the approximately 67.1 million shares of our
     Common Stock  underlying  these  financings  (File No.  333-116491)  became
     effective on July 8, 2004. That registration  statement included the shares
     underlying the financings  indicated as well as approximately  12.2 million
     shares related to earlier  financings as described in Note 1. Additionally,
     that registration  statement  included  approximately 3.3 million shares of
     our Common Stock that have been issued, that we are contractually obligated
     to issue, or that may be issued pursuant to warrant agreements with certain
     vendors,  consultants and other parties who have agreed to accept shares of
     our Common Stock in lieu of cash. That registration statement also included
     additional  shares  which may be  issuable  pending the  resolution  of the
     dispute regarding  certain  debentures as described in Note 11 in Detail of
     Financings, following.



                                       20







                                                   DETAIL OF RECENT FINANCINGS


                                                                                         Calypte                         Shares
                                     Conversion       Gross        Net     Transaction   Closing     Shares Issued/     Currently
Financing Type and Investor (1)       Feature       Proceeds     Proceeds     Date        Price      $ Redeemed (2)     Issuable
- -------------------------------      ----------     --------     --------  -----------   -------     --------------    ----------
                                                                                    
Financings included in July 2003
Registration Statement
8% Convertible Notes                    Lesser of
Alpha Capital Aktiengesellshaft      (i) $3.00 or       $500                 5/24/02      $ 3.60      7,260.7/ $500             -
Stonestreet Limited Partnership       (ii) 70% of       $500                 5/24/02      $ 3.60      7,075.7/ $500             -
Filter International Ltd.             the average       $150                 5/24/02      $ 3.60      2,452.4/ $150             -
                                               of
Camden International Ltd.            the 3 lowest       $350                 5/24/02      $ 3.60      5,279.1/ $350             -
Domino International Ltd.           trades for 30       $150                 5/24/02      $ 3.60      1,767.4/ $150             -
Thunderbird Global Corporation               days       $ 75                 5/24/02      $ 3.60       1,083.1/ $75             -
BNC Bach International Ltd.             preceding       $200                 5/24/02      $ 3.60      2,463.8/ $200             -
Excalibur Limited Partnership          conversion       $200                 5/24/02      $ 3.60      1,678.9/ $200             -
Standard Resources Ltd.                                 $100                 5/24/02      $ 3.60      1,542.5/ $100             -
SDS Capital International Ltd.                          $300                 7/10/02     $ 10.20      4,189.8/ $300             -
Camden International Ltd.                               $100                 7/10/02     $ 10.20      1,707.9/ $100             -
Excalibur Limited Partnership                           $250                 7/24/02      $ 6.60      4,238.3/ $250             -
Stonestreet Limited Partnership                         $250                 8/21/02      $ 3.90      4,042.2/ $250             -
Alpha Capital Aktiengesellshaft                         $107                  5/9/03      $ 0.63      1,302.5/ $107             -
                                                      ------                                         -----------------        -----
   Total 8% Convertible Notes                         $3,232     $2,594                              46,084.3/ $3,232           -
                                                      ======    =======                              ================         =====
Other Restart Financings:

10% Convertible Note
BNC Bach International Ltd.            50% of the      $ 150    $ 150      5/14/02           $4.20      2,217.8/ $150           -
   (Note: on 7/14/02 the             average of 3                                       $10.80 on
   maturity date was extended              lowest                                         7/14/02;
   until 12/31/02; on December        closing bid                                       $1.92 on
   27, 2002, the maturity date      prices for 22                                        12/27/02;
   was extended until January                days                                         $1.80 on
   15, 2003; on January 15,             preceding                                       1/15/03;
   2003 the maturity date was          conversion                                       $1.50 on
   extended until March 17,                   (4)                                         3/17/03;
   2003, on March 17, 2003 the                                                            $0.99 on
   maturity date was extended                                                               4/2/03
   until April 4, 2003; on                                                              $0.75 on
   April 2, 2003, the maturity                                                             4/30/03
   date was  extended until May
   5, 2003; on April 30, 2003,
   the maturity date was
   subsequently extended until
   May 10, 2004)(3)

8% Convertible Debentures
Su So                                  80% of the      $ 100       $ 90      6/17/02       $4.20       36.7 (3)/ $100           -
                                     lower of the
                                          average
                                      closing bid
                                    or trade
                                  price for the
                                           5 days
                                        preceding
                                      conversion,
                                     but not less
                                       than $3.00



                                                                 21





                                                                                         Calypte                         Shares
                                     Conversion       Gross        Net     Transaction   Closing     Shares Issued/     Currently
Financing Type and Investor (1)       Feature       Proceeds     Proceeds     Date        Price      $ Redeemed (2)     Issuable
- -------------------------------      ----------     --------     --------  -----------   -------     --------------    ----------
                                                                                                  
Jason Arasheben                        70% of the      $ 100       $ 90      7/03/02       $8.10       15.8 (3)/ $100           -
                                     lower of the
                                          average
                                      closing bid
                                    or trade
                                  price for the
                                           5 days
                                        preceding
                                      conversion,
                                     but not less
                                       than $3.00

PIPE at $1.50 per share
Careen Ltd.                             $1.50 per      $ 200      $ 200    8/28/02        $ 4.80         225.0/ N/A             -
Caledonia Corporate Group                   Share      $ 200      $ 200    8/28/02        $ 4.80         225.0/ N/A             -
                                                       -----      -----                                  ----------            ---
    Limited

    Total Other Restart                                $ 750      $ 730                                 2,720.3/ $350           -
      Financings                                       =====      =====                                 =============          ===


Mercator 12% and 10% Debentures
Previously Registered

12% Convertible Debentures
Mercator Momentum Fund, L.P.           85% of the      $ 550    $345(5)      9/12/02       $3.00         4,866.4(3)/$550        -
($2,000 total commitment; $1,300       average of
previously registered)               the 3 lowest
                                          trading
Mercator assigned its rights to:       prices for
   Alpha Capital AG                        the 20        250        250      7/24/03      $0.115     2,673.8/ $250              -
   Gamma Opportunity Capital         trading days        250        250      7/24/03      $0.115     2,685.6/ $250              -
     Partners, LP                       preceding
   Goldplate Investment Partners       conversion        250        250      7/24/03      $0.115     2,673.8/ $1,300            -
                                             (7)      -------    -------                           ------------------          ---
                                                      $1,300     $1,095                             12,899.6/ $1,300            -
                                                      -------    ------                             ----------------           ---


Mercator Momentum Fund, L.P.           80% of the       $300       $260     10/22/02       $3.90        0/ $300 (6)             -
                                       average of
                                     the 3 lowest
                                          trading
                                       prices for
                                           the 20
                                     trading days
                                        preceding
                                      conversion,
                                     but not less
                                       than $1.50

Mercator Momentum Fund L.P.  (9)       70% of the       $300       $245      4/29/03      $0.825      3,475.7/ $300           -
                                       average of
                                     the 3 lowest
                                          trading
                                       prices for
                                           the 20
                                     trading days
                                        preceding
                                      conversion,
                                     but not more
                                       than $1.20



                                                                 22





                                                                                         Calypte                         Shares
                                     Conversion       Gross        Net     Transaction   Closing     Shares Issued/     Currently
Financing Type and Investor (1)       Feature       Proceeds     Proceeds     Date        Price      $ Redeemed (2)     Issuable
- -------------------------------      ----------     --------     --------  -----------   -------     --------------    ----------
                                                                                                   
Mercator warrant                        $3.00 per         $0         $0     10/22/02       $3.90                  0       100.0
                                            share
10% Convertible Debentures
Mercator Focus Fund, L.P. (9)          80% of the     $1,000       $510      1/14/03       $1.92    7,941.1/ $1,000           -
                                       average of                   (6)
                                     the 3 lowest
                                          trading
                                       prices for
                                           the 20
                                     trading days
                                        preceding
                                      conversion,
                                     but not more
                                       than $3.00

Mercator Momentum Fund, L.P. (9)       80% of the       $450       $440      1/30/03       $1.86      2,857.7/ $450           -
                                       average of
                                     the 3 lowest
                                          trading
                                       prices for
                                           the 20
                                     trading days
                                        preceding
                                      conversion,
                                     but not more
                                       than $3.00
Mercator Focus Fund, L.P. (9)                           $400                 3/13/03       $1.47        3,428.9/ $400          -
Mercator Momentum Fund III, L.P.       65% of the        100                                            1,626.3/ $100          -
                                                        ----                                            -------------          ---
                                       average of       $500       $400                                 5,055.2/ $500          -
                                     the 3 lowest       ----       ----                                 -------------          ---
                                          trading
                                       prices for
                                           the 20
                                     trading days
                                        preceding
                                      conversion,
                                     but not more
                                       than $2.10
 Total Mercator Debentures
      previously registered                           $3,850     $2,950                              32,229.3/ $3,850       100.0
                                                      ======     ======                              ================       =====


Financings Included in the June
15, 2004  Registration Statement

Mercator 12% Convertible
Debentures
Mercator Momentum Fund, L.P.           85% of the
($2,000 total commitment; $1,300       average of
previously registered)               the 3 lowest
                                          trading
Mercator assigned its rights to:       prices for
   Marr Technologies, B.V. (10)            the 20        570          570      9/1/03   $0.498         5,181.8/ $570          -
   Dr. Khalid Ahmed                  trading days         50           50     10/2/03   $1.310            84.6/ $ 50          -
   Roger Suyama                         preceding         20           20     10/2/03   $1.310            33.8/ $ 20          -
   Logisticorp, Inc.               conversion (7)         20           20  10/2/03(11)  $1.310                     -       52.9
   Southwest Resource
     Preservation Inc.                                    40           40  10/2/03(11)  $1.310                     -      105.9
                                                        ----          ----                             --------------     ------
                                                         700          700        (11)                  5,300.2/ $640      158.8
                                                        ====          ====                             =============      =====



                                                                 23





                                                                                         Calypte                         Shares
                                     Conversion       Gross        Net     Transaction   Closing     Shares Issued/     Currently
Financing Type and Investor (1)       Feature       Proceeds     Proceeds     Date        Price      $ Redeemed (2)     Issuable
- -------------------------------      ----------     --------     --------  -----------   -------     --------------    ----------
                                                                                                  
Marr Private Placements

     PIPE at $0.30 per share
Marr Technologies B.V. (8)(10)         $0.30 per       $2,500      $2,300      8/1/03     $0.152              8,333.3         -
                                           share

     PIPE at $0.50 per share

Marr Technologies B.V. (8)(10)         $0.50 per      $10,000      $9,600      9/1/03     $0.498             20,000.0         -
                                           share

    5% Promissory Note
    Commitment Agreement (12)
Boodle Hatfield warrant                $0.80 per        $   0       $   0    11/13/03     $0.880                    -     375.0
                                           share
Boodle Hatfield warrant                $0.46 per            0           0     3/19/04     $0.575                    -     400.0
                                           share
Marr Technologies BV warrant           $0.40 per share      0           0     5/26/04     $0.460                    -     500.0
                                                        -------     ------                                   --------     ------

 Total Marr Private Placements                          $12,500     $11,900                                    28,333.3   1,275.0
                                                        =======     =======                                   =========   ========


May 2004 Private Placement
  PIPE at $0.40 per share (13)            Shares
    SF Capital Partners Ltd.           issued at       $4,000      $3,720     5/28/04      $0.50             10,000.0   3,500.0
    Marr Technologies BV               $0.40 per        3,000       2,910     5/28/04      $0.50              7,500.0   2,625.0
    Proximity Fund LP                     share;          500         465     5/28/04      $0.50              1,250.0     437.5
    Proximity Partners LP                 5 year          500         465     5/28/04      $0.50              1,250.0     437.5
    MTB Small Cap Growth Fund         warrant at          500         465     5/28/04      $0.50              1,250.0     437.5
                                           $0.50
    MTB Multi Cap Growth Fund          per share          500         465     5/28/04      $0.50              1,250.0     437.5
    Bridges & PIPES LLC                                   300         279     5/28/04      $0.50                750.0     262.5
    Duncan Capital LLC (14)                                 0           0     5/28/04      $0.50                    -      30.0
    Capstone Investments (14)                               0           0     5/28/04      $0.50                    -     600.0
                                                       --------     -------                                  --------   -------
                                                        9,300       8,769                                    23,250.0   8,767.5
                                                       ========     ========                                 =========  =======

New Financings included in this
  Registration Statement

July 2004 Private Placement
 PIPE at $0.40 per share (13)             Shares
    Sunrise Equity Partners, L.P.      issued at         $ 750       $698       7/9/04      $0.615           1,875.0     1,312.5
    Amnon Mandelbaum                   $0.40 per            80         74       7/9/04      $0.615             200.0       140.0
    David I. Goodfriend                   share;             8           7     7/9/04       $0.615              20.0        14.0
    TCMP3 Partners                        5 year           150         140     7/9/04       $0.615             375.0       262.5
    United Capital Partners, LLC      warrant at
                                           $0.50           500         465     7/9/04       $0.615           1,250.0       875.0
                                                      --------      ------                  ------           -------       ------
    Duncan Capital (14)                                      -           -     7/9/04       $0.615                 -       148.8
                                                      --------      ------                                    -------      -------
                                                       $ 1,488      $1,384                                   3,720.0     2,752.8




                                                                 24



- -----------------------

(1)  The 8% Convertible  Notes, the Other Restart  Financings,  the Mercator 12%
     and 10% Debentures and warrants,  the Common Stock  underlying  MTBV's 2003
     PIPEs and the Common Stock  underlying  the May 2004 PIPE and the July 2004
     PIPE were issued under exemptions provided by Regulation S or Regulation D.
     With the exception of MTBV, which has identified  itself as an affiliate of
     the Company in public filings with the  Securities and Exchange  Commission
     based on its August and September  2003 PIPE  investments  and other market
     purchases of Common Stock, none of the entities listed above is or has been
     an affiliate of the Company.  Other than MTBV and SF Capital Partners Ltd.,
     all  of  the  listed  investors  were  subject  to  ownership   limitations
     restricting  their  ownership  of our stock to a  maximum  of 4.9% or 9.9%,
     depending on the specific agreement.

(2)  On  July  18,  2003,  the  registration  statement  for  52,500,000  shares
     underlying  the 8%  Convertible  Notes,  the Other Restart  Financings  and
     certain of the Mercator 12% and 10% Convertible Debentures became effective
     (File No. 333-106862).  As a result of a decline in the market price of our
     stock  subsequent  to the  effective  date of the  July  2003  registration
     statement,  the number of shares  registered was insufficient to permit the
     complete conversion of the notes and debentures into registered shares. The
     shares  underlying  certain  of  the  convertible  securities  have  become
     eligible  for resale  under Rule 144,  and certain  investors  have availed
     themselves of that eligibility to convert restricted shares issued pursuant
     to conversions into free-trading  shares. On July 8, 2004, the registration
     statement for 83,056,050 shares underlying Marr Private Placements, the May
     2004  PIPE,   certain  of  the   Mercator   12%   Convertible   Debentures,
     approximately  12.2 million  additional  shares  attributable to financings
     included in the July 2003  registration  statement  and  approximately  3.3
     million shares issued or issuable to vendors  consultants and other parties
     who  agreed to accept  shares of our  Common  Stock in lieu of cash  became
     effective (File No.  333-116491).  Investors in our July 2004 PIPE hold 3.7
     million  restricted  shares of our Common  Stock.  We are  registering  the
     shares of Common Stock  underlying the July 2004 PIPE on a cost-free  basis
     to the  holders  of said  shares  of  Common  Stock  in  this  registration
     statement.

(3)  Includes fee shares.

(4)  On April 30, 2003, when the market price the Common Stock was $0.75, we and
     BNC Bach  amended the  conversion  price to  eliminate a  conversion  price
     ceiling of $1.50 per share and to increase the discount  applicable  to the
     conversion  price from 40% to 50%. In return for this  modification  of the
     conversion  price, BNC Bach agreed to extend the maturity of the note until
     May 10, 2004. BNC Bach subsequently converted the outstanding principal and
     accrued interest into shares of Common Stock.

(5)  Reflects a 10% cash commitment fee on the entire $2 million commitment paid
     to The  Mercator  Group less  additional  fees and  expenses.  We initially
     registered shares underlying  $1,300,000 of the commitment in July 2003 and
     are registering the shares underlying the final $700,000 of this commitment
     in this registration statement.

(6)  In  conjunction  with  the  issuance  of  the  $1,000,000  10%  convertible
     debenture to Mercator  Focus Fund,  L.P., we used the proceeds to repay the
     $300,000  outstanding  principal  balance of the 12% convertible  debenture
     previously  issued to Mercator  Momentum Fund, L.P. plus accrued  interest.
     The balance of costs incurred represents transactional and legal fees.

(7)  On March 31, 2003, when the market price of the Common Stock was $0.885, we
     amended the conversion price to eliminate a conversion price floor of $1.50
     per share in  return  for an  extension  of time in which to  register  the
     shares of common stock underlying the various Mercator financings.

(8)  The  Securities  Purchase  Agreements  for both  transactions  between  the
     Company and MTBV require that we provide cost-free  registration  rights to
     MTBV;  however,  MTBV is subject to a one-year lock-up provision  following
     the transaction date with respect to the shares purchased.

(9)  On January 14,  2004,  when the market price of the Common Stock was $0.60,
     we extended the maturity  date of the following  debentures  until July 14,
     2004:

     o    10%  Convertible  Debenture  dated January 14, 2003 issued to Mercator
          Focus Fund, LP

     o    10%  Convertible  Debenture  dated January 30, 2003 issued to Mercator
          Momentum Fund, LP

     o    10%  Convertible  Debentures  dated  March 13, 2003 issued to Mercator
          Focus Fund, LP

     o    12%  Convertible  Debenture  dated  April 29,  2003 issued to Mercator
          Momentum Fund, LP

In return for the  extension  of the  maturity  dates,  we have agreed to pay an
additional  extension fee equal to 2% of the outstanding  principal  balance per
month  until the  earlier  of the  extended  maturity  date or  conversion.  The
extension  fee  is  payable  1% in  cash  and  1% in  shares  of  Common  Stock.
Additionally,  we agreed to file a registration  statement  including the shares
potentially  applicable to the conversion of the outstanding  debenture balances
and the extension fees by no later than April 29, 2004. On April 23, 2004,  when
the market  price of the Common  Stock was $0.625,  we and the various  Mercator
Funds agreed to extend until May 14, 2004 the period for filing the registration
statement  including the  extension fee shares and shares issued or  potentially
issuable upon  conversion.  On May 7, 2004,  when the market price of our common
stock was $0.48 per share,  we and the various  Mercator Funds agreed to further
extend  from May 14,  2004  until 21 days  following  the  closing  of a private
placement  of equity  financing  of at least  $5,000,000,  but in any case to no
later  than  June 30,  2004,  the  period  in which  we are  required  to file a
registration   statement   including  shares  of  our  common  stock  issued  or
potentially issuable upon conversion.  Such shares were included in our July 15,
2004 registration statement which was declared effective on July 8, 2004. All of
the subject convertible debentures were converted prior to the extended maturity
date.


                                       25


(10) On January 23, 2004,  when the market price of the Common Stock was $0.695,
     we and MTBV agreed to extend the registration rights period attributable to
     5,181,818  shares  of  Common  Stock  issued  in  conjunction  with  MTBV's
     conversion of $570,000  principal amount of our 12% Convertible  Debentures
     from February 27, 2004 to April 29, 2004. In return for the  extension,  we
     agreed to  include  in our next  registration  statement  an  aggregate  of
     28,333,333   shares  of  our  Common  Stock   purchased  by  MTBV  in  PIPE
     transactions  in the  third  quarter  of 2003.  On April 23 2004,  when the
     market price of the Common  Stock was $0.625,  we and MTBV agreed to extend
     until  May 14,  2004 the  period  for  filing  the  registration  statement
     including the shares issued to MTBV upon  conversion of the 12% convertible
     debenture and in the 2003 PIPE transactions. On May 7 2004, when the market
     price of our  common  stock was $0.48 per  share,  MTBV  agreed to  further
     extend from May 14, 2004 until 21 days  following  the closing of a private
     placement of equity financing of at least $5,000,000, but in any case to no
     later than June 30,  2004,  the period in which we are  required  to file a
     registration  statement including shares of our common stock issued to MTBV
     upon  conversion  of the 12%  convertible  debenture  and in the 2003  PIPE
     transactions.  Such shares were included in our June 15, 2004  registration
     statement, which was declared effective on July 8, 2004.

(11) The holder  claims an earlier  transaction  date,  which we  dispute.  This
     debenture  has not yet been  converted.  The  number  of  shares  currently
     issuable reported here assumes conversion based on current market prices as
     of July 14, 2004.  Assuming immediate  conversion at the earlier,  disputed
     transaction  date,  the  number  of  shares of  common  stock  issuable  to
     Logisticorp  and  Southwest  Resource  Preservation  would be  213,903  and
     427,807,  respectively.  While not necessarily agreeing to issue the number
     of shares calculated as issuable based on the disputed transaction date, we
     registered  that  number of shares  of  Common  Stock in our June 15,  2004
     registration  statement  pending  resolution  of the dispute.  The ultimate
     resolution  of the  transaction  date dispute may  determine  the number of
     shares of our stock to which the holder is entitled  upon  conversion.  See
     Legal Proceedings.

(12) On November 13,  2003,  when the market price of the Common Stock was $0.88
     per share,  we and MTBV  entered  into an agreement in which MTBV agreed to
     provide us up to an aggregate of $10,000,000  (the "Marr Credit  Facility")
     pursuant to  promissory  notes we may issue to MTBV on an  as-needed  basis
     (the  "Notes").  Each Note would bear  interest at the rate of 5% per annum
     and have a 12-month term. The Marr Credit Facility was available during the
     period  beginning  on  February  28, 2004 and ending on May 31,  2004.  The
     aggregate amount available under the Marr Credit Facility is proportionally
     reduced by the amount of any equity  financing we obtain during the term of
     the  Marr  Credit  Facility.  MTBV  has  the  right  of  first  refusal  to
     participate  in any such  equity  financing  on the same terms as the other
     investors.   The  Marr  Credit  Facility  initially  provided  for  earlier
     termination  as of March 31,  2004,  if we failed to have our Common  Stock
     listed on an established  stock exchange by that date.  Moreover,  upon the
     failure to obtain such stock exchange listing,  any outstanding Notes would
     be due and payable on April 30, 2004. As consideration  for the Marr Credit
     Facility,  the Company  issued to a party  designated  by MTBV a warrant to
     purchase  375,000  shares of Common Stock at an exercise price of $0.80 per
     share.  The warrant is immediately  exercisable and expires two years after
     issuance on November 12, 2005.

     On March 19, 2004, when the market price of the Common Stock was $0.575 per
     share,  we and MTBV  amended  the Marr  Credit  Facility  to  increase  the
     aggregate  amount  available  under the Marr Credit Facility to $15,000,000
     and to eliminate the termination  provision upon failure to have the Common
     Stock  listed  on an  established  stock  exchange  by March 31,  2004.  As
     additional  consideration for the amendment of the Marr Credit Facility, we
     issued to a party  designated  by MTBV an  additional  warrant to  purchase
     400,000 shares of our Common Stock at an exercise price of $0.46 per share.
     This warrant is immediately exercisable and expires two years from its date
     of issuance on March 18, 2006.

     On May 26,  2004,  when the market  price of the Common Stock was $0.46 per
     share, we and MTBV again amended the Marr Credit Facility  whereby MTBV has
     committed  to purchase up to  $5,000,000  of  Promissory  Notes that we may
     issue through  December 31, 2004. Any Notes issued  pursuant to this second
     amendment  will bear interest at 9% per annum and will have a maturity date
     of May 31, 2005. The  $5,000,000  amount  available  under the amended Marr
     Credit  Facility will be reduced by the net amount of any equity  financing
     we obtain after the May 26, 2004 effective date of the second amendment and
     through the December 31, 2004 commitment period,  exclusive of the proceeds
     from the May 2004 Private Placement.  Accordingly,  the commitment has been
     reduced to  approximately  $ 3.6  million as a result of the closing of the
     July 2004 PIPE.  At July 14,  2004,  we have issued no Notes under the Marr
     Credit  Facility.  As  consideration  for the  extension of the  commitment
     period reflected in the second  amendment of the Marr Credit  Facility,  we
     issued to MTBV a warrant to purchase  500,000 shares of our Common Stock at
     an  exercise  price  of  $0.40  per  share.  This  warrant  is  immediately
     exercisable  and  expires  two years from its date of  issuance  on May 26,
     2006. The Common Stock  underlying these three warrants was included on our
     June 15, 2004 registration statement.

(13) The shares issued  pursuant to the May 2004 PIPE and the July 2004 PIPE and
     the  related  warrants  for each have an  anti-dilution  feature  that will
     require  us to issue  additional  shares to the PIPE  investors  and modify
     their outstanding  warrants if we subsequently issue additional equity at a
     per  share  price of less  than  $0.40  for a period  of one year  from the
     respective  closing  dates,  except  under  the  provisions  of  previously
     outstanding   convertible   debt,   option  plans,  or  option  or  warrant
     agreements.



                                       26


(14) Reflects warrants issued pursuant to placement agent agreements.


                                    DILUTION

The  issuance of  additional  shares and the  eligibility  of issued  shares for
resale will dilute our Common Stock and may lower the price of our Common Stock.
If you invest in our Common  Stock,  your interest will be diluted to the extent
of the  difference  between the price per share you pay for the Common Stock and
the pro forma as adjusted net tangible  book value per share of our Common Stock
at the  time of  sale.  We  calculate  net  tangible  book  value  per  share by
calculating the total assets less intangible assets and total  liabilities,  and
dividing it by the number of outstanding shares of Common Stock.

The net  tangible  book  value of our  Common  Stock as of March 31,  2004,  was
($2,181,000) or  approximately  ($0.0159) per share.  Assuming that on March 31,
2004,

o    if we had issued a total of 3,720,000  shares to the  investors in the July
     2004 PIPE upon their  purchase of 3,720,000  shares at a price of $0.40 per
     share and if we had received $1,383,800 in net proceeds; and

o    if we had issued a total of 2,752,800  shares to the  investors in the July
     2004 PIPE upon their exercise of warrants to purchase 2,752,800 shares at a
     price of $0.50 per share and if we had received $1,376,400 in net proceeds;
     and

o    if you had purchased  shares under this  prospectus  for $0.3685 per share,
     which was the closing price for our common stock on March 31, 2004,

o    then our pro forma net tangible  book value as of March 31, 2004 would have
     been $580,000, or approximately $0.0040 per share.

This  represents  an  immediate  increase  in the net  tangible  book  value  of
approximately $0.020 per share to existing  stockholders on March 31, 2004. This
also   represents   an  immediate   dilution  in  net  tangible  book  value  of
approximately  $0.365  per  share  to all  acquirers  of  common  stock  in this
offering.

The  actual  dilution  to you  may be  greater  or less  than  in this  example,
depending on the actual price you pay for shares,  the actual prices at which we
issue shares to the various parties under the convertible  debenture  agreements
and how many of the  exercisable  options  and  warrants  outstanding  have been
exercised at the time of your  investment.  The  convertible  note and debenture
agreements  each  contain  ownership  limitations  that would  preclude  certain
parties from  converting the entire face amount of their notes and debentures in
a single transaction as contemplated in the calculations above.


                            SELLING SECURITY HOLDERS

The  number  of  shares  set  forth in the  table  for the  various  subscribers
represents  an estimate of the number of shares of Common Stock to be offered by
them.  The actual number of shares of Common Stock  issuable upon  conversion of
the remaining  debentures and exercise of warrants is indeterminate,  is subject
to adjustment and could be materially  less or more than such  estimated  number
depending on factors  which  cannot be  predicted by us at this time  including,
among other  factors,  the future market price of the common  stock.  The actual
number of shares of Common Stock offered in this Prospectus, and included in the
registration  statement  of  which  this  Prospectus  is a part,  includes  such
additional  number of shares of Common  Stock as may be issued or issuable  upon
conversion of the debentures  and exercise of related  warrants by reason of any
stock split, stock dividend or similar  transaction  involving the Common Stock,
in accordance with Rule 416 under the Securities Act of 1933, as amended.

Under the terms of the  warrants  issued to the selling  security  holders,  the
warrants  are  exercisable  by any holder  only to the extent that the number of
shares of Common Stock  issuable  pursuant to the  warrants,  together  with the
number of shares of Common  Stock owned by such holder and its  affiliates  (but
not  including  shares of Common Stock  underlying  unexercised  portions of the
warrants)  would  not  exceed  4.99%  of the  then-outstanding  Common  Stock as
determined  in accordance  with Section  13(d) of the Exchange Act,  except that
this restriction may be waived upon 61 days' notice by the holder.  Accordingly,
the  number of shares  of  Common  Stock set forth in the table for the  selling
security holder may exceed the number of shares of Common Stock that the selling
security  holder could own  beneficially at any given time through its ownership
of the debentures and the warrants.  In that regard, the beneficial ownership of
the Common  Stock by the selling  security  holder set forth in the table is not
determined in accordance  with Rule 13d-3 under the  Securities  Exchange Act of
1934, as amended.

The  applicable  percentage  of ownership  listed below is based on  168,027,514
shares of Common Stock outstanding as of July 14, 2004.



                                       27





                                                    Common Stock
                                                      Beneficially                                   Common Stock
                                                     Owned Prior to           Common Stock to     Beneficially Owned
                                                        Offering                  be Sold           After Offering
                                                   -------------------------- ----------------- -----------------------
                  Holder                                 Number                    Number         Number      Percent
                                                                                               
Sunrise Equity Partners L.P.                  (1)           3,187,500    (7)         3,187,500          -0-          *
Amnon Mandelbaum                              (2)             340,000    (8)           340,000          -0-          *
David I. Goodfriend                           (3)              34,000    (9)            34,000          -0-          *
TCMP3 Partners                                (4)             637,500   (10)           637,500          -0-          *
United Capital Partners, LLC                  (5)           2,125,000   (11)         2,125,000          -0-          *
Duncan Capital LLC                            (6)             148,800   (12)           148,800          -0-          *
                                                           -----------              ----------        --------
                                                            6,472,800                6,472,800          -0-
                                                           ===========              ===========       ========



- -----------------

*    Represents beneficial ownership of less than 1%

(a)  Assumes  all  shares  included  in this  offering  are sold by the  selling
     security holder.

(1)  Sunrise  Equity  Partners,  L.P. is engaged in the business of investing in
     publicly-traded  equity  securities for its own account.  Sunrise  Equity's
     primary offices are located at 641 Lexington Avenue,  25th Floor, New York,
     NY 10022.  Level  Counter,  LLC has  voting  and  investment  control  over
     investments  held by Sunrise Equity  Partners,  L.P. The unanimous votes of
     Marilyn Adler, Nathan Low and Amnon Mandelbaum control Level Counter,

(2)  Amnon  Mandelbaum  is an  individual  investor  in  publicly-traded  equity
     securities  for his own account.  Mr.  Mandelbaum's  address is c/o Sunrise
     Equity  Partners,  L.P.,  641 Lexington  Avenue,  25th Floor,  New York, NY
     10022.

(3)  David I.  Goodfriend is an individual  investor in  publicly-traded  equity
     securities  for his own account.  Mr.  Goodfriend's  address is c/o Sunrise
     Equity  Partners,  L.P.,  641 Lexington  Avenue,  25th Floor,  New York, NY
     10022.

(4)  TCMP3  Partners is engaged in the business of investing in  publicly-traded
     equity securities for its own account.  TCMP3's primary offices are located
     at Titan Capital  Management,  7 Century  Drive,  Suite 201,  Parsippany NJ
     07054.  Steven  Slawson  and Walter  Schenker  have  voting and  investment
     control over investments held by TCMP3 Partners.

(5)  United  Capital  Partners  is  engaged  in the  business  of  investing  in
     publicly-traded  equity  securities  for its own  account.  United  Capital
     Partners' primary offices are located at 505 Montgomery Street, Suite 1033,
     San Francisco,  CA 94111. John F. Heerdink,  Jr . has voting and investment
     control over investments held by United Capital Partners.

(6)  Duncan   Capital  LLC  is  engaged  in  the   business  of   investing   in
     publicly-traded  equity  securities for its own account.  Duncan  Capital's
     primary offices are located at 830 Third Avenue,  14th Floor,  New York, NY
     10022.  David Fuchs has voting and investment control over investments held
     by Duncan Capital.

(7)  Includes  1,312,500  shares  of Common  Stock  that are  issuable  upon the
     exercise of a warrant issued to the selling stockholder.

(8)  Includes 140,000 shares of Common Stock that are issuable upon the exercise
     of a warrant issued to the selling stockholder.

(9)  Includes  14,000 shares of Common Stock that are issuable upon the exercise
     of a warrant issued to the selling stockholder.

(10) Includes 262,500 shares of Common Stock that are issuable upon the exercise
     of a warrant issued to the selling stockholder.

(11) Includes 875,000 shares of Common Stock that are issuable upon the exercise
     of a warrant issued to the selling stockholder.

(12) Includes 148,800 shares of Common Stock that are issuable upon the exercise
     of a warrant issued to the selling stockholder.


                              PLAN OF DISTRIBUTION

The selling  security  holders and any of their pledgees,  donees,  transferees,
assignees and successors-in-interest  may, from time to time, sell any or all of
their shares of Common Stock on any stock exchange,  market or trading  facility
on which the shares are traded or in private transactions. These sales may be at
fixed or negotiated prices. The selling security holders may use any one or more
of the following methods when selling shares:

o    ordinary brokerage transactions and transactions in which the broker-dealer
     solicits Investors;

o    block trades in which the broker-dealer  will attempt to sell the shares as
     agent but may  position  and resell a portion of the block as  principal to
     facilitate the transaction;

o    purchases by a broker-dealer  as principal and resale by the  broker-dealer
     for its account;

o    an exchange  distribution  in accordance  with the rules of the  applicable
     exchange;

o    privately negotiated transactions;

o    to cover short sales made after the date that this  Registration  Statement
     is declared effective by the Commission;

o    broker-dealers  may  agree  with the  selling  security  holders  to sell a
     specified number of such shares at a stipulated price per share;


                                       28


o    a combination of any such methods of sale; and

o    any other method permitted pursuant to applicable law.

The  selling  security  holders  may also sell  shares  under Rule 144 under the
Securities Act, if available, rather than under this prospectus.

Broker-dealers  engaged by the  selling  security  holders may arrange for other
brokers-dealers to participate in sales.  Broker-dealers may receive commissions
or discounts from the selling security holders (or, if any broker-dealer acts as
agent  for the  purchaser  of  shares,  from the  purchaser)  in  amounts  to be
negotiated.  The selling  security  holders do not expect these  commissions and
discounts to exceed what is customary in the types of transactions involved.

The  selling  security  holders may from time to time pledge or grant a security
interest in some or all of the Shares  owned by them and, if they default in the
performance of their secured  obligations,  the pledgees or secured  parties may
offer and sell shares of Common  Stock from time to time under this  prospectus,
or  under  an  amendment  to this  prospectus  under  Rule  424(b)(3)  or  other
applicable  provision of the Securities Act of 1933 amending the list of selling
security  holders to include the  pledgee,  transferee  or other  successors  in
interest as selling security holders under this prospectus.

Upon the Company being notified in writing by a selling security holder that any
material  arrangement has been entered into with a broker-dealer for the sale of
Common Stock through a block trade, special offering,  exchange  distribution or
secondary distribution or a purchase by a broker or dealer, a supplement to this
prospectus  will be  filed,  if  required,  pursuant  to Rule  424(b)  under the
Securities Act, disclosing (i) the name of each such selling security holder and
of the participating broker-dealer(s), (ii) the number of shares involved, (iii)
the  price  at which  such  the  shares  of  Common  Stock  were  sold,  (iv)the
commissions paid or discounts or concessions  allowed to such  broker-dealer(s),
where  applicable,   (v)  that  such   broker-dealer(s)   did  not  conduct  any
investigation  to verify the information set out or incorporated by reference in
this prospectus, and (vi) other facts material to the transaction.  In addition,
upon the Company being notified in writing by a selling  security  holder that a
donee or  pledge  intends  to sell  more than 500  shares  of  Common  Stock,  a
supplement to this  prospectus will be filed if then required in accordance with
applicable securities law.

The selling  security  holders  also may  transfer the shares of Common Stock in
other circumstances, in which case the transferees, pledgees or other successors
in  interest  will  be the  selling  beneficial  owners  for  purposes  of  this
prospectus.

The selling security holders and any  broker-dealers or agents that are involved
in selling the shares may be deemed to be  "underwriters"  within the meaning of
the Securities Act in connection with such sales. In such event, any commissions
received  by such  broker-dealers  or agents and any profit on the resale of the
shares  purchased  by them  may be  deemed  to be  underwriting  commissions  or
discounts  under the Securities  Act.  Discounts,  concessions,  commissions and
similar  selling  expenses,  if  any,  that  can be  attributed  to the  sale of
Securities  will be paid by the selling  security  holder and/or the purchasers.
Each selling  security  holder has represented and warranted to the Company that
it  acquired  the  securities  subject  to this  registration  statement  in the
ordinary course of such selling security  holder's  business and, at the time of
its purchase of such securities  such selling  security holder had no agreements
or  understandings,  directly or  indirectly,  with any person to distribute any
such securities.

The Company has advised each selling  security holder that it may not use shares
registered on this  Registration  Statement to cover short sales of Common Stock
made  prior to the date on which  this  Registration  Statement  shall have been
declared  effective by the  Commission.  If a selling  security holder uses this
prospectus  for any  sale  of the  Common  Stock,  it  will  be  subject  to the
prospectus  delivery  requirements of the Securities  Act. The selling  security
holders will be  responsible  to comply with the  applicable  provisions  of the
Securities  Act and  Exchange  Act,  and the  rules and  regulations  thereunder
promulgated,  including, without limitation, Regulation M, as applicable to such
selling security  holders in connection with resales of their respective  shares
under this Registration Statement.

The  Company  is  required  to  pay  all  fees  and  expenses  incident  to  the
registration  of the shares,  but the Company will not receive any proceeds from
the sale of the Common  Stock.  The Company has agreed to indemnify  the Selling
security  holders  against  certain  losses,  claims,  damages and  liabilities,
including  liabilities under the Securities Act. If the selling security holders
use this  prospectus  for any sale of the Common Stock,  they will be subject to
the prospectus delivery requirements of the Securities Act.


                                       29



                                LEGAL PROCEEDINGS

On January 24, 2003, we were informed that one of our former vendors, Validation
Systems,  Inc.  ("Validation"),  had  commenced  an action in Santa Clara County
Superior  Court on an open  book  account  in the  amount of  $79,614,  incurred
between  April  1999 and July  2002 and  which we  accrued,  concurrently,  plus
$20,156 in interest, at the rate of 10% per annum until payment,  wherein it has
claimed  that it  rendered  services  related to the  validation  of  biomedical
equipment and processes at our  facilities.  We have  contested the claim as the
alleged  services  claimed by Validation  were not performed in a timely fashion
and were, thus, unusable. On September 9, 2003 the Court dismissed  Validation's
lawsuit  against us due to the  failure of  Validation's  counsel to appear at a
mediation  status review and to respond to an order to show cause  regarding the
failure to appear.  Validation  has filed a motion to vacate this  dismissal  on
grounds of  inadvertence,  mistake,  surprise and excusable  neglect.  The Court
vacated the dismissal and  reinstated  the case at a hearing on December 2, 2003
in return for  Validation's  payment of fees incurred by us in  connection  with
Validation's  failure to appear.  Additonally,  the Court ordered the parties to
mediation.  In June 2004, following the mediation, we agreed to settle the claim
for $80,000.  The parties have executed formal settlement  documents and we have
made the agreed upon settlement payment.

A claim  has  been  made by  Logisticorp,  Inc.  ("Logisticorp")  and  Southwest
Resource  Preservation,  Inc.  ("Southwest")  with  respect to an  aggregate  of
$60,000 of 12% Convertible Debentures assigned to Logisticorp and Southwest by a
debenture  holder.  Logisticorp's  and  Southwest's  claim is that each tendered
their respective conversion notice requests in August, 2003 and that as a result
of their separate notice of election to convert their debentures, that Southwest
is  entitled  to  receive  427,807   registered  shares  of  common  stock,  and
Logisticorp  213,903  registered  shares of common  stock  for an  aggregate  of
641,710 shares of common stock. Additionally,  Logisticorp claims damages in the
sum of at least  $235,000,  and Southwest  claims damages in the sum of at least
$471,000,  or an  aggregate  of at  least  $706,000.  The  Company  has  advised
Logisticorp  and  Southwest  that it disputes  their  claims with respect to the
conversion notice date, the conversion price and the number of shares based upon
the formula in the  debenture  and the  registration  rights for the  underlying
shares.  The  Company,  Logisticorp  and  Southwest  are  discussing  a possible
resolution of the claims.


                                       30



          DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND CONTROL PERSONS

Our directors, executive officers and significant employees are listed below.



                                     Position with the Company / Principal      Director
Name                        AGE      Occupation                                 Since (1)
- ------------------        --------- -----------------------------------------   -------------
                                                                       
Anthony J. Cataldo            53    Chairman                                             5/02

John J. DiPietro              46    Director / Chief Financial Officer, Chronix          10/99
                                    Biomedical, Inc.

Paul E. Freiman               69    Director / President and Chief Executive             12/97
                                    Officer, Neurobiological Technologies, Inc.

Julius R. Krevans, M.D.       80    Director / Retired Chancellor Emeritus,               3/95
                                    Director of International Medical Services
                                    University of California, San Francisco

Maxim A. Soulimov             32    Director / Director of Legal Affairs, Global          4/04
                                    Corporate Ventures Limited

J. Richard George, Ph.D.      62    President and Chief Executive Officer                  n/a

Richard D. Brounstein         54    Executive Vice President and Chief Financial           n/a
                                    Officer



- ------------------
(1)  Dr. Zafar I. Randawa  resigned from the Board of Directors  effective  June
     30, 2004 citing personal  reasons and time  constraints;  accordingly,  the
     Board of Directors was reduced in size to 5 members.


Anthony J. Cataldo was appointed Executive Chairman in May 2002. Mr. Cataldo has
held  management  positions with a number of emerging growth and publicly traded
companies. He served as the Chief Executive Officer and Chairman of the Board of
Directors of Miracle  Entertainment,  Inc., a Canadian film production  Company,
from May 1999 through May 2002 where he was the  executive  producer or producer
of several  motion  pictures.  From August 1995 to December  1998,  Mr.  Cataldo
served as President and Chairman of the Board of Senetek, PLC, a publicly traded
biotechnology company involved in age-related therapies.  From 1990 to 1995, Mr.
Cataldo held various  positions  including  Chairman and Chief Executive Officer
with Management Technologies,  Inc., a manufacturer and seller of trading system
and banking  software  systems.  He has also held the position of Executive Vice
President of Hogan Systems,  a banking software  manufacturer and retailer.  Mr.
Cataldo  has also served as  President  of  Internet  Systems,  a pioneer in the
Internet  banking arena.  Mr. Cataldo served in the United States Air Force from
1969 to 1973.  Since October 2003, Mr. Cataldo has served as the Chairman of the
Board of Directors of BrandPartners  Group, Inc. a publicly-held  brand building
communication services company.

      John J.  DiPietro  was  elected to the  Company's  Board of  Directors  in
October 1999. Since September 2002, he has served as the Chief Financial Officer
of Chronix Biomedical Inc, a private biotechnology company. Since February 2003,
Mr.  DiPietro  has also been a member of the Board of Chronix  Biomedical.  From
September  1999 to September  2002 he had been the Chief  Financial  Officer and
Vice  President-Finance  and  Administration  of  Tripath  Technology,  Inc.,  a
semi-conductor  manufacturing  company.  He served as Calypte's  Chief Operating
Officer,  Vice President of Finance,  Chief Financial Officer and Secretary from
December 1997 through  September 1999. From October 1995 until December 1997, he
served as Calypte's  Vice  President  of Finance,  Chief  Financial  Officer and
Secretary. Prior to joining the Company, he was Vice President of Finance, Chief
Financial  Officer and  Secretary  of Meris  Laboratories,  Inc., a full service
clinical  laboratory,  from 1991 until 1995. He is a Certified Public Accountant
and received  his M.B.A.  from the  University  of Chicago,  Graduate  School of
Business and a B.S. in Accounting from Lehigh University.

     Paul E. Freiman has served as a member of the Company's  Board of Directors
since December 1997. He has served as the President and Chief Executive  Officer
of  Neurobiological  Technologies,  Inc.  since May 1997. In 1995,  Mr.  Freiman
retired  from his  position as Chairman  and Chief  Executive  Officer of Syntex
Corporation,  a  pharmaceutical  company.  From 1962 until 1994, he held several
other positions at Syntex  Corporation,  including President and Chief Operating
Officer.   Mr.   Freiman   is   currently   serving  on  the  board  of  Penwest
Pharmaceuticals Inc. and Neurobiological  Technologies,  Inc and several private
biotechnology   companies.   He  has  been   chairman   of  the   Pharmaceutical
Manufacturers  Association of America  (PhARMA) and has also chaired a number of
key PhARMA  committees.  Mr.  Freiman is also an advisor to Burrill & Co., a San
Francisco merchant bank.


                                       31


      Julius R.  Krevans,  M.D. has served on the  Company's  Board of Directors
since March 1995.  Dr.  Krevans  served as  Chancellor  Emeritus and Director of
International  Medical Care at University  of  California at San Francisco  from
1993 until his retirement in June 2002. From 1982 until 1993, Dr. Krevans served
as Chancellor at UCSF,  and was Dean of the School of Medicine at UCSF from 1971
until 1982.  Prior to this, Dr.  Krevans served as Dean for Academic  Affairs at
Johns Hopkins  University School of Medicine where he also served on the faculty
for 18 years and was  Professor  of Medicine  from 1968 until  1971.  He is also
Chairman of the Board of Directors of Neoprobe  Corporation  and a member of the
Board of Directors of AccuImage Corporation.  Dr. Krevans received his M.D. from
New York  University,  College of Medicine and completed a residency in Medicine
at Johns Hopkins University School of Medicine.

       Maxim A. Soulimov was  appointed to the  Company's  Board of Directors in
April 2004  pursuant  to an August 2003  agreement  between the Company and Marr
Technologies  BV ("MTBV") in which MTBV  purchased  $2.5 million of Common Stock
and the Company agreed to grant MTBV the right to appoint two mutually-agreeable
representatives   to  the  Board.   MTBV  is  currently  the  Company's  largest
stockholder,  holding  approximately  28% of the  Company's  outstanding  Common
Stock. Since November 2002, Mr. Soulimov has served as Director of Legal Affairs
of Global Corporate  Ventures  Limited  ("GCVL") of London, a company  providing
consultancy  services to a variety of private  investors  including Marr and its
affiliates.  From  April 2000  through  October  2002,  Mr.  Soulimov  served as
in-house  legal  counsel for Lukoil Europe  Limited and Lukoil  Europe  Holdings
Limited,  private companies  involved in the management of all Lukoil downstream
companies outside the Russian Federation. From September 1997 to April 2000, Mr.
Soulimov served as Trainee and then as Assistant Solicitor in the London firm of
Norton Rose  Solicitors.  Mr.  Soulimov holds a Degree in Modern  Languages from
Tver  State  University  in Russia  and an LLB Law  degree  from  University  of
Hertfordshire in the United Kingdom.

      J.  Richard  George,  Ph.D.  has served as Calypte's  President  and Chief
Executive  Oficer since January  2004.  Dr. George joined the Company in January
2003 as Vice President - Government Affairs.  From September 2000 to March 2002,
Dr. George served as Senior Vice President - Research & Development,  Infectious
Diseases at Orasure  Technologies,  Inc.  (Nasdaq:  OSUR), a company involved in
developing  and marketing  oral fluid  specimen  collection  devices,  including
devices  involved in testing for  HIV/AIDS.  Dr.  George  served from April 1995
through  August 2000 as Chief Science  Officer of Epitope,  Inc. (a  predecessor
company to Orasure Technologies, Inc.). Dr. George was employed in various roles
at the Centers for Disease  Control and  Prevention  (CDC) from 1960 to 1995. He
left  the  CDC in  1995  as  Chief  of  the  Developmental  Technology  Section,
Laboratory  Investigations  Branch  of the  Division  of  HIV/AIDS.  Dr.  George
received his Ph.D. in Microbiology  from the University of Georgia;  he received
his Master of Science and B.S. degrees in Biology from Georgia State University.

      Richard D.  Brounstein  has served as Executive  Vice  President and Chief
Financial  Officer since  joining  Calypte in December  2001,  following a short
period in which he served as a financial  consultant  and  interim  CFO. He also
served as member of the Board of Directors  from  December  2001 until May 2003,
when he did not stand for re-election.  Prior to joining Calypte, Mr. Brounstein
served  as Chief  Financial  Officer  for  Certicom  Corporation,  a mobile  and
wireless  software  security  company from 2000 to 2001. From 1997 to 2000, Rick
served as Chief  Financial  Officer for VidaMed,  Inc., a  growth-stage  medical
device  company.  From 1989 to 1997, Mr.  Brounstein  served as Chief  Financial
Officer  and Chief  Quality  Officer of  MedaSonics,  Inc.,  a  manufacturer  of
non-invasive  medical ultrasound  devices.  Mr. Brounstein is a CPA; he received
both his MBA in Finance and his BA in Accounting from Michigan State University.


The Board of Directors and Committees

     The Board of Directors  has standing  Audit,  Compensation  and  Nominating
     Committees.

Audit Committee

       The Audit Committee  currently  consists of Mr. Freiman as Chairman,  Mr.
DiPietro,  and Dr. Krevans.  The Audit Committee assists the Board in fulfilling
its  oversight  responsibilities  relating  to the  integrity  of the  financial
statements,  compliance with legal and regulatory requirements,  the independent
auditor's   qualifications   and  independence,   and  the  performance  of  the
independent  auditor.  It is not the  duty  of the  Audit  Committee  to plan or
conduct audits,  to prepare the Company's  financial  statements or to determine
that the  Company's  financial  statements  and  disclosures  are  complete  and
accurate and are in accordance with generally accepted accounting principles and
applicable rules and regulations.  These are the  responsibilities of management
and the  independent  auditor.  In discharging its  responsibilities,  the Audit
Committee  engages the  Company's  independent  auditors,  approves the services
performed by such  auditors,  reviews and  evaluates  the  Company's  accounting
principles and its system of accounting controls,  and reviews with the auditors
the Company's  quarterly  unaudited and annual audited financial  statements and
the results of the reviews and audit thereof.


                                       32


       The Board has determined  that all current members of the Audit Committee
are  independent  Directors and that each member of the Audit  Committee has the
ability to read and understand  fundamental financial statements.  The Board has
also determined that Mr. Freiman and Mr.  DiPietro  qualify as "Audit  Committee
financial  experts"  as  defined  under  Item  410(h) of  Regulation  S-B of the
Securities  Exchange Act of 1934 (the "Exchange  Act"). Mr. DiPietro served as a
member of the Audit  Committee  from January 2003 until May 2003, but because of
his  prior  consulting   agreement  with  the  Company,  he  did  not  meet  the
independence  requirements  for a member of the Audit  Committee  at that  time.
Consequently,  Dr. Randawa, who subsequently resigned from the Board on June 30,
2004, replaced Mr. DiPietro on the Audit Committee in May 2003. In January 2004,
subsequent to his being  considered  independent in September 2003, Mr. DiPietro
was  re-appointed to the Audit Committee and replaced Dr. Krevans,  who resigned
from the Committee.  Dr. Krevans was re-appointed to the Audit Committee on June
30, 2004, as a result of Dr. Randawa's resignation from the Board.

Compensation Committee

      The  Compensation  Committee  consists of Dr.  Krevans as Chairman and Mr.
Freiman,  both  of  whom  are  independent  directors  who  have  served  on the
Compensation  Committee since at least 2000. The Compensation  Committee assists
the Board in fulfilling its oversight  responsibilities  relating to officer and
director  compensation,  succession planning for senior management,  development
and retention of senior  management,  and  administration of the Company's stock
option,  incentive and other benefit plans,  including,  without  limitation the
1995 Director  Option Plan (the "Director  Plan") and the 2000 Equity  Inventive
Plan (the "2000 Plan").

Nominating Committee

The Nominating  Committee  consists of Mr. Freiman as Chairman and Dr.  Krevans,
both of whom have served on the Nominating  Committee since 2002. The Nominating
Committee  assists  the  Board  in  fulfilling  its  oversight  responsibilities
relating  to  the  Company's  corporate   governance   matters,   including  the
determination  of the  independence  status of  current  and  prospective  Board
members,  periodic  evaluation of the Board of  Directors,  its  committees  and
individual directors, and the identification and selection of director nominees.
The Nominating Committee will also consider stockholder suggestions for nominees
for director other than self-nominating suggestions.


                           REPORT OF AUDIT COMMITTEE

Annual Report on Form 10-KSB

The role of the Audit Committee (the  "Committee") is to assist the Board in its
oversight of the Company's  financial  reporting  process.  The Audit  Committee
operates  pursuant to a Charter  that was last amended and restated by the Board
on  January  19,  2004.  Management  of  the  Company  is  responsible  for  the
preparation,  presentation and integrity of the Company's financial  statements,
the  Company's  accounting  and  financial  reporting  principles  and  internal
controls and procedures designed to assure compliance with accounting  standards
and applicable laws and  regulations.  The independent  auditors are responsible
for auditing the Company's financial  statements and expressing an opinion as to
their conformity with generally accepted accounting principles.

         In the  performance  of its oversight  function,  the Committee met and
held  discussions  with  management  and  Odenberg  Ullakko  Muranishi & Co. LLP
("OUM"),  the Company's  independent  auditors.  Management  represented  to the
Committee that the Company's  consolidated financial statements were prepared in
accordance with accounting  principles  generally accepted in the United States,
and the Committee reviewed and discussed the consolidated  financial  statements
with  management and with OUM. The Committee also discussed with OUM the matters
required to be discussed by Statement on Auditing Standards No. 61 (Codification
of Statements on Auditing Standards, AU 380), as amended.


                                       33


         In addition,  the Committee  discussed with OUM their independence from
the Company and its  management,  and OUM provided to the  Committee the written
disclosures  and  letter   required  from  the   independent   auditors  by  the
Independence Standards Board Standard No. 1 (Independence Discussions with Audit
Committees).

         The Committee  discussed with OUM the overall scope and plans for their
audit.  The  Committee  met with OUM, with and without  management  present,  to
discuss the results of their  examination,  their  evaluations  of the Company's
internal controls, and the overall quality of the Company's financial reporting.

         The  members of the  Committee  are not  professionally  engaged in the
practice of auditing and therefore rely without independent  verification on the
information  provided to them and on the representations  made by management and
the independent auditors.  Accordingly, the Audit Committee's oversight does not
provide  an  independent  basis to  determine  that  management  has  maintained
appropriate   accounting  and  financial  reporting  principles  or  appropriate
internal  control and procedures  designed to assure  compliance with accounting
standards  and  applicable  laws  and   regulations.   Furthermore,   the  Audit
Committee's  reviews  and  discussions  referred to above do not assure that the
audit of the Company's  financial  statements has been carried out in accordance
with generally accepted auditing  standards,  that the financial  statements are
presented in accordance with generally  accepted  accounting  principles or that
the Company's auditors are in fact "independent."

         Based upon the reports and  discussions  described in this report,  and
subject  to the  limitations  on the  role  and  responsibilities  of the  Audit
Committee  referred  to above and in the Audit  Committee's  Charter,  the Audit
Committee  approved the  inclusion of the audited  financial  statements  in the
Company's  Annual Report on Form 10-KSB for the year ended December 31, 2003 for
filing with the SEC.

SEC Informal Inquiry

         The Company was contacted by the San Francisco  District  Office of the
Securities and Exchange  Commission (the  "Commission")  on October 28, 2003 and
advised that the enforcement  staff of the Commission was conducting an informal
inquiry regarding the Company. The Commission has requested, among other things,
documents  and  information  related to  certain  press  releases  issued by the
Company.  The  Commission has advised the Company that the inquiry should not be
construed as an indication by the  Commission or its staff that any violation of
law has occurred. The Company has voluntarily provided the information sought by
the  Commission and is  cooperating  with the Commission in connection  with its
informal inquiry.

         Independently,  the  Committee  investigated  the matter  and  retained
outside counsel to assist in its  investigation  by reviewing the press releases
and  related  information  that  were the  subject  matter  of the  Commission's
informal inquiry letter. The Committee  completed its investigation and reported
the results of its investigation and associated  recommendations to the Board of
Directors. Counsel for the Committee advised both the Committee and the Board of
Directors  that the  results of their  investigation,  interviews  and review of
documents  provided in  response to the  Commission's  informal  inquiry  letter
indicated no evidence of management malfeasance with respect to its inquiry. The
Committee, based upon its counsel's  recommendations,  proposed that the Company
implement  certain   practices  and  procedures,   some  of  which  represent  a
continuation or  formalization of present  practices.  The  recommendations  and
proposals of the  Committee  were approved by the Board of Directors and include
certain  improvements  in the  Company's  press  release  issuance  process  and
investor relations and regulatory recordkeeping  procedures.  Additionally,  the
Board of Directors  has directed  management  to  implement  the American  Stock
Exchange  corporate  governance  standards  (SR-AMEX-2003-65)  approved  by  the
Commission  on  December  1, 2003.  While  corporate  governance  is an on-going
process,  the Company has  substantially  implemented  our  recommendations  and
proposals and we and the Board have approved the updated  policies and charters,
including those attached as exhibits to this Proxy Statement.


Change of Auditors

         The Company's interim financial  statements are required to be reviewed
under Statement of Auditing  Standards 100 ("SAS 100") by an independent  public
accountant  pursuant to Item 310(b) of  Regulation S B and our annual  financial
statements must be audited by an independent public accountant  pursuant to Item
310(a) of  Regulation  S B.  Calypte's  former  independent  auditors,  KPMG LLP
("KPMG"),  informed  the Company that they


                                       34


could not complete their  quarterly  review of the Company's  interim  financial
statements  contained in the Company's  Quarterly  Report on Form 10-QSB for the
quarterly  period  ended  September  30, 2003 or audit the  Company's  financial
statements  for its fiscal year ended  December  31, 2003 until such time as the
Audit  Committee  had completed its  investigation  related to the  Commission's
informal  inquiry letter,  the same was reviewed by KPMG, and KPMG was satisfied
that, in its opinion,  an adequate  investigation  was conducted and appropriate
conclusions were reached and actions taken.

         On December 23, 2003, the Board dismissed KPMG as independent  auditors
for the Company, effective immediately,  at the recommendation of the Committee.
As of the date of KPMG's dismissal, KPMG had advised the Company that, in KPMG's
opinion,  the  conditions  necessary for KPMG to complete its review had not yet
been satisfied. At the time of KPMG's dismissal, the Committee had completed its
investigation,  had reported  the results of its  investigation  and  associated
recommendations  to the  Board of  Directors,  and the  Board of  Directors  had
approved  the  recommendations.  Additionally,  at that  time,  counsel  for the
Committee  had advised the Company and the  Committee  that it had  commenced to
provide  to  KPMG  information  concerning  the  investigation   conducted,  the
conclusions reached and the actions taken by the Company.

         On December 24, 2003,  upon the approval of and at the direction of the
Committee,   the  Company  engaged  OUM  to  audit  the  consolidated  financial
statements of the Company for the two years ended December 31, 2003 and 2002 for
inclusion  in the  Company's  Annual  Report on Form  10-KSB  and to review  the
interim financial statements of the Company contained in its Quarterly Report on
Form 10-QSB for the quarterly period ended September 30, 2003. OUM has completed
the SAS 100 review  associated  with the Company's Form 10-QSB/A  (No.1) and its
audit of the Company's  financial  statements  for the years ended  December 31,
2003 and 2002.

         The  Committee  and the Board have  appointed,  subject to  stockholder
ratification,  OUM as the  Company's  independent  auditors  for the fiscal year
ending December 31, 2004.

                  SUBMITTED BY THE AUDIT COMMITTEE OF THE BOARD

                                        Paul E. Freiman, Chairman
                                        John J. DiPietro
                                        Zafar I. Randawa, Ph.D.

April 16, 2004



                                       35




         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

      Except as set forth in the footnotes to this table,  the  following  table
sets forth  information  known to the  Company  with  respect to the  beneficial
ownership of its Common  Stock as of July 14, 2004 for (i) all persons  known by
the Company to own  beneficially  more than 5% of its outstanding  Common Stock,
(ii) each of the Company's  directors,  (iii) each Named  Executive  Officer and
(iv) all directors and executive officers of the Company as a group.




                                                                                    Shares        % of
                                                                                 Beneficially   Total(2)
5% Stockholders, Directors and Officers(1)                                           Owned
- ------------------------------------------------------------------              -------------   -----------
                                                                                          
Marr Technologies BV (3)                                                           49,540,151      28.95
   Strawinskylaan 1431
   1077XX, Amsterdam
   The Netherlands
SF Capital Partners Ltd. (4)                                                       10,322,000       6.16
    3600 South Lake Drive
    St. Francis, WI 53235
Anthony J. Cataldo (5)                                                              5,022,341       2.91
Richard D. Brounstein (6)                                                           1,507,371          *
J. Richard George (7)                                                               2,551,273       1.50
John DiPietro (8)                                                                     307,977          *
Paul Freiman (9)                                                                      309,901          *
Julius Krevans, M.D.(10)                                                              308,468          *
Maxim A. Soulimov (11)                                                                200,000          *

All current directors and executive officers as a group (7 persons)                10,207,331       5.74



- -------------------
 * Represents beneficial ownership of less than 1%.

(1)  To the  Company's  knowledge,  except as set forth in the footnotes to this
     table and subject to applicable  community property laws, each person named
     in this table has sole  voting  and  investment  power with  respect to the
     shares  set  forth  opposite  such  person's  name.   Except  as  otherwise
     indicated,  the address of each of the persons in this table is as follows:
     c/o  Calypte  Biomedical   Corporation,   5000  Hopyard  Road,  Suite  480,
     Pleasanton, California 94588.

(2)  Based on 168,027,514 shares outstanding as of July 14, 2004.

(3)  As reported in Amendment No. 3 to Schedule 13D dated December 2, 2003 filed
     with the  Securities  and  Exchange  Commission  adjusted  for  shares  and
     warrants purchased in the 2004 PIPE transaction.  Includes 3,125,000 shares
     subject to warrants  exercisable within 60 days. Marat Safin has voting and
     investment control over shares held by Marr Technologies BV.

(4)  As reported in  Schedule  13G dated June 3, 2004 filed with the  Securities
     and Exchange Commission. Excludes 3,500,000 shares subject to warrants held
     by SF Capital  Partners Ltd.  Such warrants are subject to conversion  caps
     that preclude SF Capital  Partners Ltd. From utilizing its exercise  rights
     within 60 days to the extent that it would  beneficially own (determined in
     accordance  with Section 13(d) of the  Securities Act of 1934) in excess of
     4.999% of the  Company's  common  stock,  giving  effect to such  exercise.
     Michael A. Roth and Brian J. Stark are the founding  members and direct the
     management of Staro Asset  Management,  LLC, a Wisconsin  limited liability
     company  ("Staro"),  which acts as investment manager and has sole power to
     direct the management of SF Capital  Partners Ltd.  Through Staro,  Messrs.
     Roth and Stark  possess sole voting and  dispositive  power over all of the
     shares owned by SF Capital Partners Ltd.

(5)  Includes 4,765,556 shares subject to options exercisable within 60 days

(6)  Includes 1,507,371 shares subject to options exercisable within 60 days.

(7)  Includes 2,551,273 shares subject to options exercisable within 60 days.


                                       36


(8)  Includes 307,734 shares subject to options exercisable within 60 days.

(9)  Includes 309,901 shares subject to options exercisable within 60 days.

(10) Includes 308,001 shares subject to options exercisable within 60 days.

(11) Includes 200,000 shares subject to options exercisable within 60 days. Marr
     Technologies  BV ("Marr"),  the  beneficial  owner of 49,540,151  shares of
     Calypte  Common stock (the "Marr  Holdings")  has the right to nominate two
     (2) candidates to serve on the Calypte Board of Directors. Mr. Soulimov was
     nominated by Marr and subsequently appointed as a director upon approval of
     the  Calypte  Board of  Directors.  Mr.  Soulimov  disclaims  any direct or
     indirect  beneficial  ownership of Marr  Holdings and does not exercise any
     control nor does he take part in any  investment  decisions  undertaken  by
     Marr and does not have a direct  or  indirect  pecuniary  interest  in Marr
     Holdings.


                                       37



                          DESCRIPTION OF THE SECURITIES


July 2004  Private  Placement  - PIPE at $0.40 per  share and  related  Warrants
exercisable at $0.50 per share

On July 9, 2004,  when the market price of our Common Stock was $0.615 per share
and  pursuant to  Regulation  D, we issued  3,720,000  restricted  shares of our
Common  Stock at a price of $0.40  per  share to 5  unaffiliated  investors  and
received  gross  proceeds  of  $1,488,000.  Under the terms of the  subscription
agreement,  each investor  received  warrants to purchase our Common Stock in an
amount equal to 70% of the number of shares purchased in the private  placement.
Accordingly,  we issued warrants to purchase an aggregate of 2,604,000 shares of
our Common Stock to the investors and warrants to purchase an additional 148,800
shares of our Common Stock pursuant to a placement agent agreement. The warrants
are  exercisable  at a price of $0.50 per share for a period of five  years from
the July 9, 2004 date of issuance.

The  securities  purchase  agreements  for this  private  placement  provide the
investors  with  participation  rights on the same terms and conditions as other
investors in any subsequent  financing  transactions  we may complete within one
year of the closing of this placement.  The securities  purchase agreements also
contain  anti-dilution  provisions  that could  require  us to issue  additional
shares of common stock to the investors if we raise additional  equity financing
at a price below $0.40 per share in the year  following  the closing of the PIPE
transaction. We are including the shares issued in the private placement and the
shares  underlying  the  warrants  in this  registration  statement.  We are not
including in this  registration  statement  any shares which may be  potentially
issuable as a result of anti-dilution provisions.

The following table summarizes the investments and transaction  dates related to
the issuances under the July 2004 Private Placement.




                                                                        Calypte                    Shares
                                   Gross        Net      Transaction    Closing      Shares      Currently    Shares being
Investor                          Amount       Amount        Date        Price       Issued       Issuable     Registered
- ---------                       --------     --------     ---------     --------     -------     ----------    -----------
                                                                                           
Sunrise Equity Partners, L.P.        $750        $698        7/9/04      $0.615      1,875.0        1,312.5        3,187.5
Amnon Mandelbaum                       80          74        7/9/04      $0.615        200.0          140.0          340.0
David I Goodfriend                      8           7        7/9/04      $0.615         20.0           14.0           34.0
TCMP3 Partners                        150         140        7/9/04      $0.615        375.0          262.5          637.5
United Capital Partners LLC           500         465        7/9/04      $0.615      1,250.0          875.0        2,125.0
Duncan Capital LLC (1)                 -            -        7/9/04      $0.615            -          148.8          148.8
                                --------     --------     ---------     --------     -------     ----------    -----------
                                   $1,488      $1,384                                3,720.0        2,752.8        6,472.8
                                =========    ========                                =======      =========    ===========



- --------------------
(1)  reflects  shares  underlying  warrants  issued  pursuant to placement agent
     agreements.



            DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR
                           SECURITIES ACT LIABILITIES

Section 145 of the Delaware  General  Corporation  Law permits a corporation  to
include in its charter documents,  and in agreements between the corporation and
its directors and officers,  provisions  expanding the scope of  indemnification
beyond that specifically provided by the current law.

Article VIII of the Registrant's  Certificate of Incorporation  provides for the
indemnification  of directors to the fullest extent  permissible  under Delaware
law.

Article  VI of the  Registrant's  Bylaws  provides  for the  indemnification  of
officers,  directors and third parties  acting on behalf of the  corporation  if
such person acted in good faith and in a manner reasonably believed to be in and
not opposed to the best  interest of the  corporation,  and, with respect to any
criminal action or proceeding,  the  indemnified  party had no reason to believe
his conduct was unlawful.

Calypte has entered  into  indemnification  agreements  with its  directors  and
executive  officers,  in addition to  indemnification  provided for in Calypte's
Bylaws,  and  intends  to enter  into  indemnification  agreements  with any new
directors and executive officers in the future.


                                       38



                             DESCRIPTION OF BUSINESS

Our business  involves the  development,  manufacture  and marketing of in vitro
diagnostic  tests  primarily  for  the  detection  of  antibodies  to the  Human
Immunodeficiency  Virus ("HIV") and other  sexually  transmitted  and infectious
diseases. We have historically focused our business on urine-based screening and
supplemental tests for use in laboratories.  By integrating  several proprietary
technologies,   we  developed  novel  urine  HIV  antibody  tests,  the  Calypte
urine-based enzyme immunoassay  ("EIA") HIV Type 1 ("HIV-1")  screening test and
the Cambridge  Biotech  urine-based  HIV-1 western blot ("Urine  Western  Blot")
supplemental  test.  We  also  manufacture  and  market  the  Cambridge  Biotech
serum-based  western blot ("Serum Western Blot") supplemental test for detecting
HIV-1  antibodies in serum.  Our revenues are currently  generated from sales of
these three  products,  which we refer to collectively as our "ELISA tests." The
ELISA  tests are  manufactured  in  formats  that make  them most  suitable  for
high-volume laboratory settings. We shall sometimes refer to ourselves herein as
"Calypte" or the "Company."

We are the only company with Food and Drug  Administration  ("FDA") approval for
the  marketing  and sale of  urine-based  HIV-1  antibody  tests.  Our EIA HIV-1
screening test received FDA approval for use in laboratories in August 1996. Our
Urine  Western Blot  supplemental  test  received FDA approval in May 1998.  Our
urine-based ELISA tests together,  with their screening and confirmatory testing
components, are the only complete FDA approved urine-based HIV testing method.

Our  business is also  involved in  developing  new test  products for the rapid
detection  of HIV-1 and HIV Type 2, a second  type of HIV  ("HIV-2"),  and other
infectious  diseases.  In  November  2003,  we filed an  Investigational  Device
Exemption  ("IDE")  with  the FDA  announcing  our  intent  to  develop  a rapid
serum-based HIV screening test. Rapid tests provide test results in less than 20
minutes and are particularly suitable for point-of-care  testing,  especially in
lesser  developed  countries  which lack the medical  infrastructure  to support
laboratory  based  testing.   We  are  currently   developing  both  serum-  and
urine-based  HIV-1 and HIV-2 rapid tests and  anticipate  that our primary focus
will be the development,  manufacture and sale of our rapid test products,  both
internationally and domestically.

Background

HIV
HIV, the cause of AIDS, is a leading cause of death for persons ages 25 to 44 in
the U.S.  and for  persons  of all  ages in many  international  locales.  Those
infected  with HIV  generally do not show  symptoms of AIDS until  several years
after HIV  infection,  if at all.  Because  most persons  infected  with HIV are
unaware  of their HIV status and are  asymptomatic  for AIDS,  they do not avail
themselves of medical treatment and may unknowingly expose others to the risk of
HIV infection.

Prior exposure to HIV can be detected in laboratory and point-of-care tests even
though the infected individual is asymptomatic. Although the human immune system
typically  requires  a number of weeks or months to begin  producing  antibodies
following exposure to HIV, there is no consensus in the scientific  community as
to whether antibodies can first be detected in blood, urine or oral fluid.

According to the December 2003 AIDS  Epidemic  Update  published  jointly by the
Joint United  Nations  Programme  on HIV/AIDS and the World Health  Organization
(the "WHO"),  at the end of 2003 an estimated 40 million  people  globally  were
living with HIV; over 30.9 million people had already died from the disease, and
an estimated 5 million  people were newly  infected  with HIV during  2003.  The
Update  reported  that about 3 million  people died of AIDS during 2003.  HIV is
spread by a transfer of bodily fluids,  primarily through sexual contact,  blood
transfusions,   sharing  intravenous   needles,   accidental  needle  sticks  or
transmission from infected mothers to newborns.

In its February  2004  presentation,  Global  Health,  The Bill & Melinda  Gates
Foundation (the "Gates  Foundation")  cites a mid-2002 UNAIDS report  indicating
that in the absence of dramatically  expanded  prevention and treatment efforts,
68 million  people will die of AIDS in the 45 most  affected  countries  between
2000 and 2020, a mortality outlook that is five times the number of AIDS-related
deaths in the  previous  two  decades  in these  countries.  Further,  the Gates
Foundation report projects  approximately 45 million new HIV/AIDS  infections by
the year 2010, with 28 million of these infections considered to be preventable.
Whereas the epidemic is currently  centered  primarily  in  sub-Saharan  Africa,
where  expectations of current and future  infection range from 30 to 35 million
adults by 2010,  the Gates  Foundation  study  identifies  countries in northern
Africa as well as Russia,  India and China as the "next  wave"  countries  which
will experience the HIV/AIDS pandemic, as demonstrated in the following chart:


                                       39


- --------------------------------------------------------------------------------

    High and Low Estimates of Current and Future HIV/AIDS-Infected Adults in
                       Next-Wave Countries, 2002 and 2010

                                           (in millions)

                                           High      Low
                                           ----      ---
Nigeria                           2002        4        2
                                  2010       10        5
Ethiopia                          2002        3        2
                                  2010        7        3
Russia                            2002        1        1
                                  2010        5        3
India                             2002        5        3
                                  2010       20        5
China                             2002        1        1
                                  2010     10.5      4.5

SOURCE: Bill and Melinda Gates Foundation Global Health report 2/2004

- --------------------------------------------------------------------------------

Current Status of HIV/AIDS Testing

A May 2004 report by the Global Business  Coalition on HIV/AIDS (GBC),  based on
their own estimates and those of the World Health Organization (WHO),  disclosed
that less than 10% of infected  individuals in the  developing  world know their
HIV status. According to this report, new infections are on the rise -- and only
400,000 of the 6 million people in need of antiretroviral therapy have access to
these life saving  medicines.  Testing for HIV serves as an entry point for both
prevention and treatment.  The objective of treating 3,000,000 people by the end
of 2005,  the stated goal of the WHO "3 by 5"  Initiative,  would  require  that
500,000  people will need to be tested each day.  This is based on the  report's
estimate that 50,000  people will test positive in hard hit countries  where the
prevalence  rates  average  10%,  and that 10% or  5,000  per day of those  will
require  immediate  initiation  of  treatment.  GBC states that the challenge is
enormous  but  attainable  with  increases  in funding  from donor  governments,
reductions  in  drug  and  diagnostic  pricing,  integration  of  public-private
delivery of healthcare and overarching shifts in policy.

HIV Testing
The  discovery  in 1984 of HIV  antibodies  circulating  in the blood led to the
development and widespread use of blood screening tests for the detection of HIV
antibodies.  Blood banks began testing  their  supplies of blood in an effort to
maintain  and protect the  integrity  of the blood.  Most  current HIV  antibody
screening  tests are EIA tests which  operate on the principle  that  antibodies
react with  antigens.  Antibodies  are produced by the human body in response to
the presence of an infectious disease, such as HIV. Antigens are substances that
stimulate production of antibodies.  EIA tests provide an antigen base that will
react with HIV antibodies,  if such antibodies are present.  Enzymes are used to
detect the reaction between the antigens and antibodies.

Since then, the blood  screening  test has been  considered the gold standard of
HIV testing. In the United States, in addition to blood banks, physicians,  life
insurance companies,  the military, the criminal justice system, the Immigration
and Naturalization Service and community-based organizations all use blood-based
testing.  Unfortunately,  HIV blood  testing can be expensive  and poses risk of
infection  to health  care  personnel.  Blood is  typically  drawn at  physician
offices, clinics,  hospitals or blood draw stations, where trained personnel are
available.  The blood is then sent to a laboratory  where a trained  health care
worker or phlebotomist  must first  centrifuge the blood sample and then test it
for the presence of HIV  antibodies.  Blood  samples and related  blood-sampling
equipment  require careful handling to avoid accidental  exposure to blood-borne
pathogens,   such  as  HIV.   Additionally,   blood-based   testing  has  become
increasingly  more  costly as the costs of  disposing  of  potentially  infected
specimens,  syringes,  needles and  transfer  tubes has  increased.  The cost of
blood-based  testing  is  prohibitive  to many  large  public  health  screening
programs,  particularly  in  lesser-developed  countries,  many  of  which  have
significantly higher rates of HIV infection.  Even in the United States, certain
populations  are not  routinely  screened  due to the high  cost of  blood-based
testing.


                                       40


We  have  consistently   maintained  that  urine-based   testing  offers  unique
advantages  to  blood-based  testing.  The  following  table  illustrates  these
advantages:




       --------------------------------------------------------------------------------------------------------
                               Advantage of Urine over Blood
       --------------------------------------------------------------------------------------------------------
                            
       SAFETY                  o Urine is non-invasive
                               o Urine collection uses no needles or lancets
                               o Urine does not spread HIV
       --------------------------------------------------------------------------------------------------------
       COST EFFECTIVE, SIMPLE  o No special handling. Urine is stable for 4 weeks without refrigeration
       TO COLLECT              o A urine sample is easier to obtain
                               o Urine is not a bio-hazard and does not require expensive disposal
       --------------------------------------------------------------------------------------------------------
       CONVENIENCE             o Urine collection does not require sterile collection devices  or trained
                                 health care providers
       --------------------------------------------------------------------------------------------------------
       PATIENT APPEAL          o Urine has been shown to increase voluntary testing by up to 73% (Source:
                                 University of Pennsylvania study results)
       --------------------------------------------------------------------------------------------------------
       PATIENT SUITABILITY     o Urine is easy to collect from patients and is the most commonly collected
                                 bodily fluid
       --------------------------------------------------------------------------------------------------------
       COMPLEMENTARY  MENU OF  o Similar  commercialized  urine  tests  exist for drugs of abuse, pregnancy,
       TESTS                     other sexually transmitted diseases
       --------------------------------------------------------------------------------------------------------
       ACCURACY                o Clinical data of urine testing shows a high correlation to blood,
                                 approaching 100%
       --------------------------------------------------------------------------------------------------------


All methods of HIV testing follow the same testing protocol.  The protocol is to
first test a sample for the presence of HIV  antibodies.  Any sample found to be
reactive is then  retested in  duplicate.  If either of the retests is reactive,
the same sample is tested again using a more precise and expensive  supplemental
test. The presence of HIV antibodies,  based on the results of the  supplemental
test,  is  considered  a positive  diagnosis  of HIV  infection.  This  protocol
minimizes  the risk of  incorrectly  reporting a false  positive  result that an
individual is infected with HIV.

Organization
We were  incorporated  in California in 1989 and  reincorporated  in Delaware in
1996 at the time of our initial public  offering.  In December 1998, we acquired
certain  assets  from  Cambridge  Biotech  Corporation,  an entity  now owned by
bioMerieux,  Inc.  The  acquisition  included  the Urine  Western Blot and Serum
Western Blot supplemental tests and leasehold rights to the Rockville,  Maryland
facility.

We are  headquartered in Pleasanton,  California.  During June 2004 we relocated
our headquarters to Pleasanton from our previous office and  manufacturing  site
in Alameda,  California.  Our  manufacturing  facility is located in  Rockville,
Maryland.  Historically, our Alameda facility had manufactured our EIA screening
test and our Rockville  facility  manufactured  our Urine and Serum Western Blot
tests. However, we are currently  consolidating our manufacturing  operations by
moving all  manufacturing  to our  Rockville  facility.  We closed  the  Alameda
facility effective June 30, 2004, when the lease expired.

In November,  2003, we became the 51% owner of a joint venture,  Beijing Calypte
Biomedical  Technology Ltd. (the "Beijing  Calypte Joint  Venture"),  created to
market  existing and  potential  new products in the People's  Republic of China
("China").  The remaining 49% of the joint venture is owned by Marr Technologies
Limited, an affiliate of Marr Technologies BV ("Marr"), our largest stockholder,
with a security  ownership of approximately  28% of our outstanding  stock as of
June 30, 2004.

Currently,  we and our distributors market our ELISA tests in approximately half
a dozen  countries  worldwide,  primarily,  however,  in China and  Brazil.  Our
current marketing  strategy is to use  distributors,  both third party and joint
venture partners,  to penetrate targeted domestic and international  markets. In
the future, we may use the Beijing Calypte Joint Venture or other joint ventures
to manufacture and market our products in  international  markets or as vehicles
to manage our international manufacturing arrangements.


                                       41


Financial considerations

To successfully  implement our business plans, we must obtain  sustainable  cash
flow and  profitability.  Our future  liquidity  and capital  requirements  will
depend on numerous factors,  including successful  completion of the development
of our new rapid tests,  acquisition  and  protection of  intellectual  property
rights,  costs of developing our new products,  ability to transfer  technology,
set up  manufacturing  and obtain  regulatory  approvals of our new rapid tests,
market  acceptance  of all our products,  competing  products in our current and
anticipated  markets,  actions  by the FDA and  other  international  regulatory
bodies, and the ability to raise additional capital in a timely manner.

Since  December 31, 2003, we have entered into new financing  arrangements  that
management  believes will be adequate to sustain  operations at expected  levels
through 2004.  During 2004, we have completed  private  placements of our common
stock with 12  accredited  investors  and  received  aggregate  net  proceeds of
approximately $10.2 million.  Additionally,  under the amended terms of the Marr
credit Facility between us and Marr Technologies BV, our largest stockholder and
a participant in one of the private placements,  we have access to an additional
$3.6 million from the issuance of 9% promissory  notes that we may issue through
December 31, 2004. If, however,  sufficient  funds are not available to fund our
operations  in 2005 or beyond,  we may need to arrange  additional  financing or
make other arrangements. There can be no assurance that additional financing, if
and as necessary, would be available or, if it is available, that it would be on
acceptable terms. The terms of an additional financing could involve a change of
control  and/or  require  stockholder  approval  or could  require  us to obtain
waivers of certain covenants that are contained in existing agreements. We would
or might be  required  to consider  strategic  opportunities,  such as a merger,
consolidation,  sale or other comparable transaction, to sustain our operations.
We do not  currently  have any  agreements in place with respect to any such new
strategic opportunity, and there can be no assurance that any such opportunities
will be available to us on acceptable terms, or at all. If additional  financing
is not available  when and if required or is not available on acceptable  terms,
or we are  unable to  arrange a suitable  strategic  opportunity,  we will be in
significant  financial  jeopardy and may be unable to continue our operations at
current levels, or at all.

Products

The Calypte  Urine-Based HIV-1 Screening and Supplemental Tests (the urine ELISA
tests)  Our  proprietary  urine-based  HIV-1 EIA (the "EIA  Screening  Test") is
non-invasive,  easy to use,  reliable  and  avoids  many of the  costs and risks
associated with blood-based  testing. Our EIA Screening Test, when used with our
Urine Western Blot supplemental test provides the only complete  urine-based HIV
testing method.  Laboratories using our urine-based  testing method can complete
the entire testing profile for HIV-1 antibody using a single urine specimen. Key
benefits of our test include:

Convenience and Safety.  Urine is the most commonly  collected  bodily fluid for
laboratory  testing.  Collection of urine can take place any time of day.  Urine
testing does not require a 24-hour voided  specimen or a midstream,  clean-catch
sample.  Because it requires no special  preservatives  or containers,  urine is
also easy to collect,  handle and discard. Our EIA Screening Test is in standard
EIA format and is designed to be used with standard laboratory equipment.

Independent studies have concluded that the likelihood of contracting infectious
HIV  virus in urine is  extremely  low.  There  have been no  reported  cases of
transmission of HIV virus through  contact with urine of HIV-infected  patients.
Accordingly,  the risk of HIV  infection to health care and  laboratory  workers
accidentally exposed to urine samples appears to be negligible. Since no needles
are used in the urine sampling process, our test avoids this route of accidental
infection.  In lesser-developed  countries,  where the supply of sterile needles
and syringes  cannot be  guaranteed  and the medical  infrastructure  to support
laboratory testing is scarce or nonexistent,  the safety benefits of using urine
sampling extend to patients as well as to health care workers.

Patient  Appeal  The  ability to screen  non-invasively  for HIV in all types of
patients,  including injection drug users and newborns, may both enhance patient
comfort and  significantly  increase the voluntary testing rates in patients who
might  otherwise  decline  testing.  A recent study  conducted by Johns  Hopkins
University  entitled  "Screening  for HIV Infection in High-Risk  Communities by
Urine  Antibody  Testing,"  published in the December  2002 volume of Journal of
Acquired Immune Deficiency  Syndromes utilized Calypte's EIA Screening and Urine
Western Blot Tests.  The study concluded that  "[u]rine-based  screening for HIV
infection in high-prevalence inner city communities can be an effective tool for
identifying and treating infected persons who are unaware of their infection."


                                       42


Cost Effective.  Our EIA Screening Test may significantly lower the overall cost
of testing  for HIV  infection  because  the cost of  collecting,  transporting,
testing and disposing of urine  specimens is relatively  inexpensive.  Our urine
ELISA tests do not require the use of trained healthcare professionals to obtain
samples  and we believe  that a urine  collection  cup costs  between  $0.05 and
$0.50. Moreover,  since urine is often already being collected for other testing
purposes,  the  incremental  cost of  collecting  urine  samples is likely to be
insignificant.

Domestically,  our current testing products qualify for insurance  reimbursement
coverage.  We sell our current ELISA tests  primarily to reference  laboratories
which in turn receive  compensation  from the insurance  companies who order the
tests.  Even with  reimbursement  approvals,  there can be no assurance that our
ELISA  tests  will  gain any  significant  degree  of  market  acceptance  among
physicians,  patients,  or healthcare payers. As we seek to develop new products
and obtain FDA approval for them in the future,  insurance reimbursements may be
necessary to facilitate their market acceptance.

Accuracy We have performed  clinical studies  demonstrating the effectiveness of
using urine as a reliable and  clinically  valid sample for HIV testing.  In the
clinical  trials for FDA approval of our urine ELISA tests,  which  followed FDA
protocol of using the  screening  and  supplemental  tests  together,  our tests
detected the presence of HIV-1  antibodies  in urine with 99.7%  sensitivity  in
subjects previously  identified as HIV-1 infected through blood-based  screening
tests.  Approximately  13,000 paired blood and urine  specimens were tested.  In
subjects at low risk for HIV, the  specificity of tests was 100%.  "Specificity"
is  the  ability  to  identify  all  non-HIV  infected  individuals   correctly.
"Sensitivity" is the ability to detect HIV infected individuals. Specificity and
sensitivity of our urine ELISA tests in certain populations,  including those at
high risk and those with other  medical  conditions,  was lower when compared to
blood-based testing.

Calypte's  HIV-1 antibody test is a much-needed  alternative for people who fail
to get  tested for HIV  because  they are afraid of  needles.  According  to the
Centers  for Disease  Control  and  Prevention  ("CDC"),  approximately  665,000
Americans  are living with HIV and AIDS.  An estimated one in four does not know
they are  infected.  It is  critical  for all people at  potential  risk for HIV
infection to learn their status because early  detection and treatment have been
shown to  prevent  debilitating  opportunistic  infections  and to extend  life.
Studies  have shown that between 21% and 50% of people would prefer a urine test
to a blood test, and up to 80% of these individuals cited fear of needles as the
reason for preferring a urine test.

In spite of the  benefits of our urine ELISA  tests,  these tests  represent  an
alternative  method of determining the presence of HIV  antibodies.  Blood-based
and oral  fluid-based  tests have the  advantage of already  being  commercially
marketed  and of having  gained  acceptance  from the  medical  community.  Both
blood-based and oral fluid-based  tests have been shown to be reliable media for
HIV  detection.  There can be no assurance  that our urine ELISA tests will gain
any significant degree of market acceptance among physicians,  other health care
providers or patients.

Moreover,  some blood-based HIV tests have also been proven effective in testing
for both HIV-1 and HIV-2. Our urine ELISA tests are currently limited to testing
for HIV-1 only. Although HIV-1 is the predominant strain of the virus, there are
certain regions of the world,  such as western Africa,  where HIV-2 also exists.
To date,  although  our urine ELISA tests are limited to HIV-1,  we believe that
factor has not had a materially  adverse  effect on our operations and revenues.
However, there can be no assurance that this HIV-1 screening limitation will not
have an adverse  effect on our  ability to market our urine  ELISA  tests in the
future if another strain of HIV not detectable by our urine ELISA tests develops
or if HIV-2  becomes more  prevalent.  Additionally,  although we are working on
development  of rapid HIV diagnostic  tests,  there can be no assurance that our
current  lack of a rapid  test will not  adversely  affect  our  operations  and
revenues.

Test  Methodology.  Our EIA  Screening  Test uses an  industry-standard  96 well
microtiter plate to detect  antibodies to HIV-1 in urine. The HIV-1  antibodies,
when  present  in urine,  bind to our  proprietary  antigen  coated on  prepared
microtiter  plates.  A  subsequent  enzymatic  reaction  produces a color change
revealing the presence of HIV-1 antibodies.

The screening test requires only 200  microliters of urine  (approximately  four
drops) and can be performed using standard laboratory equipment.  Samples can be
shipped and stored at 15 to 30 degrees  centigrade  for up to 55 days, or for up
to 1 year at 2 to 8 degrees centigrade,  before testing. The laboratory protocol
for testing urine is nearly identical to that of blood,  and therefore  requires
few, if any, modifications to existing laboratory protocols.

Our Urine Western Blot test is an in vitro  qualitative  assay for the detection
and identification of antibodies to HIV-1. This more specific assay is used as a
supplemental test with urine specimens that tested repeatedly reactive using our
EIA Screening Test.


                                       43


Our  Urine  Western  Blot  test is  manufactured  from  HIV-1  propagated  in an
H9/HTLV-IIIB T-Lymphocyte cell line. The virus is inactivated and specific HIV-1
proteins are bound to a  nitrocellulose  strip.  Each strip  contains all of the
proteins and glycoproteins of HIV arranged in bands across the strip in order of
molecular  weight.  If HIV-1  antibodies are present in the specimen,  they will
bind to the viral antigens present on the nitrocellulose  strip. The position of
bands  on the  nitrocellulose  strips  allows  this  antibody  reactivity  to be
associated with specific viral antigens.

Our Urine Western Blot supplemental  test uses the same  commercially  available
western blot kit components as used in our Serum Western Blot supplemental test.
The test procedure is virtually identical as well, except that the Urine Western
Blot  supplemental  test requires 1.0  milliliter of urine added directly to the
standard kit diluent and requires  additional  times of  incubation  for the two
detection  steps.  The same laboratory  equipment is used for both the Urine and
Serum Western Blot supplemental tests.

Additionally, our Urine Western Blot test is differentiated by the blot controls
it  employs  and the use of a positive  criterion  for blot  interpretation.  In
urine,  blots showing the presence of a single band, gp160,  equal to or greater
in intensity than the low positive urine western blot control are interpreted as
a positive HIV-1 result. Urine blots have a lower indeterminate rate than blood,
allowing more definitive negative or positive results.

The Cambridge Biotech Serum-Based HIV-1 Supplemental Test

Our Serum Western Blot test was the first  supplemental  western blot test to be
FDA-approved  and licensed for the detection of HIV-1  antibodies in blood.  Our
Serum  Western  Blot  test has been  distributed  commercially  for more than 15
years.  Today,  there are only two such products on the market.  Since the FDA's
November  1999  approval  of a "Day  Assay"  format,  the  supplemental  test is
available in both a five-hour and an overnight format. We sell our Serum Western
Blot test as a supplemental  test to HIV-1 EIA screening tests produced by other
manufacturers.  Additionally,  our Serum  Western Blot test has been approved by
the FDA for use as a  supplemental  test to HIV-1 rapid blood tests  products by
other manufacturers.

Products Under Development

Our  research  and  development   efforts  are  currently  directed  toward  the
development  of select  high-priority  new diagnostic  tests,  primarily for the
detection  of  HIV-1  and  HIV-2.   Priority  is  determined  on  the  basis  of
feasibility, probable cost to develop, ability to acquire necessary intellectual
property rights, regulatory complexity, market size and competition. Our product
development  strategy includes both internal product  development and partnering
with other  companies to optimize  existing tests and test formats and to obtain
freedom to operate in conformity  with other  companies'  intellectual  property
rights.

Rapid  Tests.  In  response  to  reports  by the CDC on the  value of rapid  HIV
antibody test results,  we have been pursuing the development of HIV-1 and HIV-2
rapid tests as our primary new products effort. We believe that such rapid tests
are  feasible  and that a  significant  market  exists for such tests.  The high
number  of  individuals  who do not  return  for  test  results  and  counseling
constitutes a threat to public health. In addition, in emergency rooms, delivery
rooms and other  settings,  there is an urgent need to immediately  know the HIV
status of  patients.  For example,  since  azidothymidine  ("AZT")  treatment of
pregnant  mothers,  even at delivery,  has been shown to result in a substantial
decrease in mother-to-child HIV transmission, there appears to be a ready market
for reliable rapid HIV tests.  Internationally,  lesser-developed countries have
the  highest  incidence  of  HIV  infection  and  the  least  effective  medical
infrastructure  with which to  diagnose  and treat it.  This  situation  largely
exists in the "next wave" countries in northern Africa, Russia, India and China.
We believe that a rapid test is much more  appropriate in these countries than a
laboratory test.

We are  designing  our rapid  tests to comply  with the rapid  testing  protocol
promulgated  by WHO.  Under that protocol,  if a sample is  non-reactive  on the
basis  of a  single  rapid  test,  testing  is  complete  and the  diagnosis  is
considered negative for HIV infection. If the sample is reactive using the first
rapid test, it is tested with a second,  different rapid test. A reactive sample
using the second test,  having already been indicated as a presumptive  positive
by the first test, is  considered  to be a positive  diagnosis for HIV. A sample
that is non-reactive to the second test, after having been reactive to the first
test, is re-tested using a third, different rapid test. A reactive sample on the
third test is considered a positive diagnosis for HIV; a non-reactive  sample is
considered a negative diagnosis.


                                       44


We have already  conducted  in-house trials of our development stage blood, oral
fluid and urine rapid tests and have conducted field  evaluations in Thailand to
validate the performance of these products.  Through the validation process, any
enhancements  necessary  and/or desired in the performance of the rapid tests in
the field are worked on in the  laboratory.  The  reworked  rapid tests are then
returned to the field for further  evaluation.  This  process is  iterative  and
precedes  the  larger  clinical  trials  that will be  required  for  regulatory
approval in many  countries  prior to bringing  the  products to market.  In our
first phase of field  trials,  we tested our  development-stage  blood and urine
rapid  tests.  These  studies  identified  certain   refinements  that  we  have
implemented.  We have subsequently conducted a second phase of field trials that
included our developmental stage blood, oral fluid and urine rapid tests.

We began the second phase of external validation trials of our blood, oral fluid
and  urine  rapid  HIV  antibody  assays  in April  2004 at the  Thai Red  Cross
Anonymous HIV Clinic in Bangkok,  Thailand.  We completed this  prospective  and
random  study in June 2004 and  provided  the  results  to  delegates  of the XV
International  AIDS  Conference  held July 11-16,  2004 in  Bangkok.  This study
tested  a total  of 1023  subjects,  392  seropositive  subjects,  including  37
seropositive  subjects receiving  anti-retroviral  therapy, and 631 seronegative
subjects.  The true antibody  status of these subjects was determined by testing
of a blood  sample  using the  standard  testing  method  routinely  used by the
Anonymous  Clinic  for  diagnostic  testing.  Our  blood  rapid  test  was  100%
concordant  with the results of the standard  blood  tests.  Our oral fluid test
demonstrated  99.5%  sensitivity  (390 of 392 subjects).  The two false negative
results  were  from two  known  positive  subjects  who were on  anti-retroviral
therapy.  These patients are known to have diminished  antibody levels and would
not normally be seeking HIV  diagnostic  testing.  The  specificity  of the oral
fluid test was 100%. Our rapid urine assay was found to be 99.0%  sensitive (388
of 392 subjects) and 100% specific. Our rapid blood, oral fluid, and urine tests
correctly identified 1023 of 1023 subjects,  1021 of 1023 subjects,  and 1019 of
1023 subjects for an overall accuracy of 100%, 99.8%, and 99.6%, respectively.

Based on our field study results to-date,  we believe that we have finalized our
blood  rapid test.  We are making  plans to conduct a formal  clinical  trial in
China using the blood test, as well as our oral fluid and urine rapid tests.  We
expect that  clinical  trial to be  completed in the third  quarter of 2004.  We
believe that we have  successfully  field tested and are now finalizing our oral
fluid test. We plan to initiate manufacturing of the oral fluid test in Thailand
shortly  following the start-up of blood test  manufacturing.  We are continuing
the development process for our urine rapid test. Urine contains a lesser amount
of antibody than either blood or oral fluid,  making the the  identification  of
those  individuals  with low  levels  of  antibodies,  especially  those who are
receiving  anti-retroviral  therapy, even more difficult.  While we believe that
the results to date are acceptable,  we are continuing the iterative development
process and are evaluating other  alternatives for our urine test, some of which
we may  choose to test in new  field  trials.  If the  results  of those  trials
demonstrate  improved  accuracy versus the current  version,  we would conduct a
separate clinical trial using the revised test format.  While we expect that our
efforts  will result in a finalized  version of the urine test no later than the
third  quarter  of 2004,  there can be no  assurance  that we will  successfully
manufacture  or  commercialize  a urine  rapid test,  or our other rapid  tests,
within that timeframe, or at all.

Our urine test  development  efforts  have  identified  certain  unique  product
properties  and  processes  that  we plan  to  protect.  We  believe  that  this
intellectual  property is significant  as it may result in a blocking  patent to
those who may  consider  urine  testing by  protecting  a key step  necessary in
achieving the highest levels of specificity.

As  mentioned  above,  we plan to  initially  manufacture  our  rapid  tests  in
Thailand.  In  preparation  for  our  first  foreign  manufacturing   technology
transfer,  we announced on May 11, 2004 that we have  finalized a  non-exclusive
contract  manufacturing  agreement with Thailand-based Pacific Biotech Co., Ltd.
to act as our initial  international  manufacturer for our HIV-1/2 blood,  serum
and plasma rapid  tests.  Manufacturing  will be located at the Pacific  Biotech
facility in Phetchaboon,  Thailand. We have commenced the technology transfer of
the blood rapid test with the objective of completing our first pilot production
lots in the third quarter of 2004.  Further,  on May 13, 2004, we announced that
we have selected Beijing Tiantan  Biological  Products Co, Ltd.  ("BTBP") as our
manufacturing  partner for the  production  of our rapid tests in China.  On the
basis of a memorandum of understanding  between the parties,  BTBP has commenced
the construction of a manufacturing site in China where the HIV rapid tests will
be produced.

One of the most critical components  affecting the design and composition of our
rapid test products is the  acquisition  of patent  rights.  A number of patents
from a number of third parties are required for the unrestricted  manufacture of
the rapid test platforms and contents. These patent rights may restrict us as to
use,  territories  in which we may sell products and modes of  operation.  These
restrictions may impact whether we can transfer any of our rights to manufacture
and/or  distribute  products  incorporating  particular  patents  and how we may
conduct such  manufacturing  and/or  distribution  arrangements.  We may need to
enter into partnering  arrangements  with other entities in order to manufacture
and/or  distribute our products,  but we may be restricted from doing so because
of  restrictions  on  certain  patent  rights.  We may  be  required  to  devote
substantial  funds and other resources to acquire the necessary patent rights in
a manner that will not hinder our ability to commercialize  our products.  There
can be no assurance that we will be successful in our endeavors to commercialize
these  products.  On April 1, 2004,  we  announced  that we had entered  into an
agreement with Adaltis,  Inc. to license and supply certain  peptides for use in
our  immunodiagnostic  assays. The first application for the peptides will be in
our HIV rapid diagnostic tests currently under  development.  The agreement will
provide  us  with  our  supply  of  key,  patented  HIV-Type  1 and  HIV-Type  2
("HIV-1/2") peptides from Adaltis. Our non-exclusive license to Adaltis' peptide
sequences  provides  us  freedom  to  operate  throughout  the  world,  with the
exception of Canada, where we would work with Adaltis in its home territory.


                                       45


Incidence  Tests.  On April 12, 2004, we announced  that the Centers for Disease
Control and Prevention ("CDC") had granted us a worldwide, non-exclusive license
enabling  us to use  technologies  developed  by  the  CDC  to  manufacture  and
commercialize  a  serum  enzyme  immunoassay  (HIV  1-EIA)  that  can be used to
estimate  the  proportion  of HIV  infections  that are  recently  acquired in a
population  (infections occurring in the last 6-8 months). This laboratory assay
can be used to identify those regions and the  populations  within those regions
where  HIV  transmission  is  occurring  most  recently.   Once  our  production
capabilities are in place, the CDC will no longer supply this product. We expect
to have this product available for international distribution in the second half
of 2004.  On April 14,  2004,  we  announced  that we had  executed  a CRADA - a
Cooperative  Research  and  Development   Agreement  -  with  the  CDC  for  the
development of a new HIV rapid blood assay. Like current rapid test assays,  the
proposed device will be for diagnostic use to detect HIV antibodies, but it will
also be used to determine the proportion of HIV-1  infections that have occurred
in the last six months.  The purpose of the test is to provide a simplified  and
rapid format that can be performed in resource poor settings and remote outreach
locations for diagnostic and surveillance purposes.

Over-the-Counter.  There are currently no FDA approved over-the-counter HIV test
products providing an immediate diagnosis.  Nonethless,  we believe there may be
interest  in an  over-the-counter  in-home  rapid test in a number of  countries
worldwide.  We will continue to explore the  potential  for an  over-the-counter
in-home  urine  collection  kit  for  use  in  HIV  diagnosis.  However,  due to
regulatory  approval  uncertainties  and cost  concerns  in the  more  developed
countries, and especially in the United States, this is not a near-term priority
development for us on our own.

Other  Diagnostics.  We intend to develop  and/or market  additional or improved
tests,  focusing on our expertise in urine and oral fluid,  for other infectious
and viral diseases,  including other sexually transmitted diseases. We intend to
focus  on  developing  and  marketing  products  that are  complementary  to our
existing  product lines,  technical  expertise and market  opportunities.  These
efforts are in the early research and evaluation  stages and are not expected to
result in revenues in 2004, if at all.

Research and Development  Spending.  We continue to invest funds in research and
development  that we believe are  necessary and  appropriate  to bring our rapid
HIV-1 and HIV-2 tests to market,  to ensure  that our ELISA tests meet  customer
requirements  and to  explore  the  potential  for  other  new  diagnostic  test
products.  We spent  $1.5  million  and $0.9  million on  product  research  and
development  in 2003 and 2002,  respectively.  We expect  future  spending  will
continue to be devoted to development and  commercialization  of HIV-1 and HIV-2
rapid  tests  and  improvements  for  our  existing  products,  as  well  as  to
investigation  of other  potential new test products.  There can be no assurance
that we will achieve or sustain any revenues from sales of rapid HIV  diagnostic
tests,  internationally  or  domestically,  or from  other new  products  we may
develop or introduce.


Sales, Marketing and Distribution

Our marketing strategy is to continue to expand our global distribution  network
through the use of third  party  distributors  and joint  venture  partners.  In
addition to FDA  approvals,  to date,  we have  received  approval to market our
ELISA urine tests in Indonesia, South Africa, Uganda, Kenya, China and Malaysia.
Other  international  approvals  for the ELISA urine tests are  pending.  We are
working  collaboratively  with our third  party  distributors  and  through  our
Beijing  Calypte  Joint  Venture  to obtain  regulatory  approval  to market and
promote our products in certain international markets.


                                       46


We anticipate  that a greater portion of our revenues for the next several years
will be derived from sales to  international  distributors  and by manufacturing
collaborations  in key markets.  International  sales and  operations  involve a
number of inherent  risks and may be limited or disrupted by the  imposition  of
government controls, export license requirements,  political instability,  trade
restrictions,   changes  in  tariffs,  difficulties  in  managing  international
operations and fluctuations in foreign currency exchange rates.  Distributors of
medical products in developing  countries where the need for  cost-effective HIV
diagnostic  tests may be the most acute often find it difficult to establish and
maintain the necessary transportation, storage and credit facilities. Certain of
our distributors have limited international marketing experience,  and there can
be no assurance that our  distributors  will be able to successfully  market our
products in any international market.

The following  table  summarizes the markets and geographic  regions that we and
our current  marketing  partners for our ELISA tests cover.  The table  includes
marketing and distribution arrangements that were in effect at December 31, 2003
and those expected to become effective in the first half of 2004. Material terms
of the respective distribution arrangements are described in more detail below.





Marketing Partner/ Company       Effective Date      Term of        Geographic      Markets/Products      Type of
                                  of Arrangement    Arrangement      Region                           Arrangement(1)
- ---------------------------      ---------------    -----------     ----------     -----------------  --------------
                                                                                       
                                                                   United           ll
Calypte                                                            States and
                                                                   Canada          A
Otsuka Pharmaceutical            12/98           Evergreen         Japan           Urine only        Exclusive
Teva Medical Ltd.                12/94           Evergreen         Israel          Urine only        Exclusive
Uni-Health Services Sdn. Bhd.    4/01              years, with     Malaysia         ll               Exclusive -
                                                 3 year renewal                                      urine
                                                 option                                              Non-exclusive
                                                                                                     - serum
BioBras S. A.                    5/00              years; 2        Brazil          All               Exclusive -
                                               3 year renewal                                        urine
                                                 option                                              Non-exclusive
                                                                                                     - serum
Medicure, Inc.                   3/01              years with 2    Philippines     All               Exclusive-
                                               3 year renewal                                        urine
                                                 yption                                              Non-exclusive
                                                                                                     - serum
PCN Healthcare                   6/01              years with 2    Thailand        All               Exclusive-
                                               3 year renewal                                        urine
                                                 option                                              Non-exclusive
                                                                                                     - serum
Centrum Promotora                4/01            2/04              Mexico          All               Exclusive -
  Internacional                                                                                      urine
                                                                                                     Non-exclusive
                                                                                                     - serum
REM Industria E. Comerica LTDA   12/01           3 years with 2    Brazil          Serum only         on-Exclusive
                                  year renewal
                                                 option
Zhong Yang Pute Biomedical Co.   10/02           2 years, with 2   20 Provinces    All except drug   Exclusive -
                                                   year renewal    in China        rehabilitation    urine
                                                 option (2)                        and criminal      Non-exclusive
                                                                                   justice           - serum
Beijing Calypte Biomedical       11/03           Not applicable    China           All               51%-owned
  Technology Ltd.                                                                                    joint venture




                                                               47







Marketing Partner/ Company       Effective Date      Term of        Geographic      Markets/Products      Type of
                                  of Arrangement    Arrangement      Region                           Arrangement(1)
- ---------------------------      ---------------    -----------     ----------     -----------------  --------------
                                                                                       
Sumit Exports and Trades Pvt.    6/02            3 years, with     India           All               Exclusive -
  Ltd..                                          2 year renewal                                      urine
                                                 option                                              Non-exclusive
                                                                                                     - serum
bioMerieux Mexico S.A. de C.V.   12/01           3 years with 2    Mexico          Serum only        Non-exclusive
                                  year renewal
                                                 option
bioCiencia Tecnologia e          4/02            3 years with 2    Brazil          Serum only        Non-exclusive
  Comercio Ltda.                                 year renewal
                                                 option
Adaltis Inc.                     3/02            3 years with 2    Worldwide       Serum only        Non-exclusive
                                  year renewal
                                                 option
Mistaire LLC                     3/03            3 years with 2    Gulf            All               Exclusive -
                                                 year renewal      Cooperative                       serum in
                                                 option            Council,                          GCC;
                                                                   Botswana                          non-exclusive
                                                                                                     - urine and
                                                                                                     serum in
                                                                                                     Botswana


- ------------
(1)  All serum products are sold on a non-exclusive  basis.  Urine EIA screening
     and supplemental tests are distributed on the basis of country or territory
     exclusivity.

(2)  The agreement  calls for minimum  purchases of $3 million over the two-year
     term of the  agreement,  and provides for a two-year  extension  contingent
     upon the distributor's purchase of a specified minimum number of tests (EIA
     - 1,500,000  tests the first twelve months and  2,500,000  tests the second
     twelve  months;  Urine  Western Blot - 15,000 tests the first twelve months
     and 30,000 tests the second twelve  months) during the original term of the
     agreement.  Based  on  purchases  to  date,  it  is  not  likely  that  the
     distributor will achieve the required minimum purchases and,  consequently,
     the agreement will likely not be renewed.  This distribution  agreement has
     been  assigned to Beijing  Calypte  Joint  Venture.  The  agreement  can be
     terminated by either party upon ninety days notice.

In 2003, our revenue from product sales totaled $3.5 million.  Approximately 95%
of our 2003 revenues were derived from sales to customers in the United States.

Manufacturing

The  manufacture of our urine ELISA tests  involves  antigen  production,  plate
processing and preparation of certain washes and other  reagents.  All processes
are carried out under FDA Quality System/ Good  Manufacturing  Practices ("GMP")
regulations.  Antigen production  involves cell culture,  antigen expression and
purification.  Following  purification,  the antigen is tested  extensively  and
optimized for plate coating.  The coating of standard 96 well microtiter  plates
with antigen is completed  using  industry  standard  plate  coating  equipment.
Following  binding of the  antigen to the  plates,  the plates are  blocked  and
stabilized to prevent  nonspecific  binding of the antigen.  The plates are then
dried and packaged in foil pouches.  The washes and reagents are produced  using
standard solution preparation techniques.

The physical  relocation  of our our  manufacturing  operations to Rockville was
completed at June 30, 2004. This process has required significant  investment of
both capital and human  resources to transfer the  manufacturing  processes  and
procedures  for our urine ELISA  tests,  to  reconfigure  space and purchase new
equipment at the Rockville facility and to hire and train current and additional
staff.  The  transition  will  continue to require  significant  resources as we
conduct  validation  studies and complete  comparability  studies  which will be
necessary  for FDA review and approval,  which we expect to be completed  during
the first quarter of 2005.

We have a Biologics  License ("BL") from the FDA for the manufacture and sale of
our serum Western Blot tests for our Rockville,  Maryland facility. We also have
a pre-market  approval  ("PMA") from the FDA for the manufacture and sale of our
urine Western Blot tests for our Rockville facility.  We had previously obtained
a PMA from the


                                       48


FDA for the  manufacture  and sale of our EIA  screening  test for our  Alameda,
California  facility.  We have applied for a PMA to manufacture and sell our EIA
test kits at our  Rockville  facility  and expect to receive it in the spring of
2005.  Until we  receive  the PMA,  we will not be able to  manufacture  our EIA
screening  test for sale in the United  States at our Rockville  facility.  As a
result,  we  increased  our  production  of EIA  screening  tests at our Alameda
facility prior to its closure in an attempt to establish a sufficient  supply of
inventory  to meet our  expected  demand  during the  consolidation  period.  We
considered  historical  sales levels and the expected length of time required to
complete  the  consolidation  and  obtain the PMA in  determining  the amount of
inventory we would need to cover demand  during the  transition  period.  Demand
could significantly  exceed historical levels and consolidation of operations or
FDA  approval  could take longer than  expected.  If one or more of these events
occur, our transition inventory may not be sufficient to supply customer orders.
Alternatively, demand could fall significantly below historical levels, in which
case we will have  manufactured  excess inventory that we may have to dispose of
at additional cost.

The lease for our Alameda  facility expired on June 30, 2004 and, as part of our
Rockville consolidation,  we have ceased manufacturing operations there. We have
relocated  our  corporate  headquarters  within  the San  Francisco  bay area to
Pleasanton, California.

The FDA did not inspect either of our  facilities  during 2002. It inspected our
Alameda  facility in June 2003 and our Rockville  facility in October 2003. Both
inspections  resulted  in  a  few  minor  observations   requiring  response  or
corrective action,  which we have made. Although we believe the FDA is currently
satisfied  with our responses and corrective  actions  resulting from its latest
inspections,  if it  subsequently  determines that it is not satisfied with them
or, if it observes new  conditions  requiring  corrective  actions  which remain
unresolved following a future inspection,  the FDA could take regulatory actions
against us, including license suspension,  revocation, and/or denial, seizure of
products and/or injunction,  and/or civil penalties or criminal  sanctions.  Any
such FDA action would likely have a material  adverse effect upon our ability to
conduct our ELISA test business.

Except  as may be  limited  by  licensed  patent  right  restrictions  and other
regulatory  or  government  imposed  considerations,  we expect to outsource the
manufacture  of our rapid test  products  and are in the process of  identifying
manufacturers  and  potential  joint  venture  partners  that we  believe  could
manufacture  the rapid tests in the quantity  and quality that we desire.  There
can be no assurance that we can successfully develop and transfer our rapid test
technologies to another  manufacturer or that the  manufacturer  will be able to
successfully  obtain  local  regulatory  approval  or meet  expected  commercial
demand. Additionally,  more than one manufacturer may produce various components
of the tests,  and there can be no assurance  that the  production  from various
sources will be successfully  coordinated.  Governmental regulations will likely
affect the cost of production and time to production in amounts and manners that
we cannot quantify.

We purchase and expect to purchase or have our  manufacturing  partners purchase
raw  materials  and other  components  obtained  from  various  suppliers in the
manufacture of our test products. We also use some single-source components. Any
delay or interruption in supply of these raw materials or components, especially
in regard to single-source components, could significantly impair our ability to
manufacture products in sufficient quantities to meet established and increasing
commercial demand because additional or replacement  suppliers cannot be quickly
established.

As a result of limited  financial  resources  in the past and related  personnel
turnover, we have had limited experience in the commercial-scale  manufacture of
our products.  We currently manufacture our products for sale, for submission to
FDA for ongoing compliance, for clinical trials, and for building our inventory.
We  may  encounter   difficulties   in   transferring   the  technology  to  our
manufacturing  partners or  scaling-up  production  of our  products,  including
problems  involving  production  yields,  quality  control  and  assurance,  raw
material  supply  and  shortages  of  qualified  personnel.  Due to our  limited
manufacturing  experience,   our  estimates  with  regard  to  these  and  other
operational  requirements  may be  incomplete or  inaccurate  and  unanticipated
events and circumstances  are likely to occur.  Difficulties we may encounter in
the scale-up of  manufacturing  inventory  following  the  consolidation  of our
domestic  manufacturing  operations  could have a material adverse effect on our
business, financial condition and results of operations.

Due to the nature of our  manufacturing  processes,  we are subject to stringent
federal,  state and local laws,  rules,  regulations and policies  governing the
use, generation,  manufacture,  storage, air emission,  discharge,  handling and
disposal of certain materials and wastes. There can be no assurance that we will
not be  required  to  incur  significant  costs  to  comply  with  land  use and
environmental  regulations as manufacturing  is scaled-up to commercial  levels,
nor that our operations,  business or financial condition will not be materially
and  adversely  affected  by  current  or


                                       49


future  environmental  laws,  rules,  regulations and policies.  There can be no
assurance  that we will be able to obtain and maintain  all required  permits in
connection with the operation of our manufacturing  facilities. If we attempt to
manufacture  our  products  on a  larger  commercial  scale,  we  may  become  a
significant  user and  disposer  of water.  The  disposal  of water  used in our
manufacturing  processes must comply with  applicable  federal,  state and local
environmental  protection laws, and compliance with these laws may be costly and
difficult.

Our Rockville facility is a specialized facility incorporating Biosafety Level 3
controls for the manipulation of potentially  infectious  biological agents (HIV
viruses). It also uses hazardous chemical materials.  As such, this facility and
the products manufactured there are subject to rigorous federal, state and local
regulatory controls including registration,  licensing and specific material use
permits.

Technology

Our urine ELISA tests are based on the  discovery by  scientists at the New York
University  Medical Center ("NYU") in 1988 that antibodies to HIV could be found
in urine.  Prior to this  discovery,  it was commonly  held that  antibodies  to
systemic  infections could not pass through the kidneys,  and thus, could not be
found in the urine of  infected  individuals.  The NYU  scientists  showed  that
antibodies  to HIV-1  envelope  antigens  were present in all urine samples from
HIV-1 seropositive subjects. Building on this discovery, we developed our enzyme
immunoassay  ("EIA")  to  detect  antibodies  to HIV-1 in  urine.  There are two
proprietary features of our EIA test that result in a format sensitive enough to
detect the low levels of HIV  antibodies  in urine,  the antigen  target and the
sample buffer in the assay.

Recognizing the prominence of envelope  antibodies in urine,  the antigen target
in the assay is a full length,  recombinant glycosylated HIV-1 envelope protein,
rgp160. Although this antigen is a recombinant glycoprotein,  it is identical to
the viral  envelope  protein gp160 in amino acid sequence and in the presence of
carbohydrate at glycosylation sites. This kind of antigen target can efficiently
capture the full range of HIV-1  envelope  specific  antibodies  produced in the
human  polyclonal  response to the virus. The microwell assay format permits the
high  availability  of epitopes of the  recombinant  envelope  glycoprotein  for
antibody  binding.  This  availability  of epitopes  results in the  sensitivity
verified in clinical trials.

We have  non-exclusive  rights to the  proprietary  process  used to express the
recombinant  HIV-1  envelope  glycoprotein  from  Texas  A&M  University  System
("TAMUS").  This  proprietary  process for the manufacture of rgp160 begins with
the baculovirus  expression vector system established in an insect cell culture.
The  consistent  and high levels of rgp160  expression in  baculovirus  infected
insect cell culture are a critical step in the overall  manufacturing of rgp160.
We improved and upgraded the  Repligen  Corporation  process with a  proprietary
process which uses a system in which the HIV-1  envelope  protein is produced in
the insect cell membrane  rather than typical tissue  culture  systems where the
protein is secreted  into  insect cell  culture  media.  Rgp160 is an  insoluble
protein and requires  detergent  based  extraction and  purification  procedures
which are  proprietary.  We developed  and have  obtained a United States patent
claiming a sample  buffer  formulation,  which is used in the HIV-1  urine test.
This  sample  buffer  acts as a diluent  for urine in the  assay  procedure  and
significantly  increases test  specificity by reducing  non-specific  binding of
immunoglobulins  (non-specific  antibodies)  and other  substances in urine that
would decrease  specificity  and sensitivity of HIV-1 antibody  binding.  Sample
buffer was manufactured in our Alameda facility and is being transferred as part
of our consolidation in our Rockville facility.

Our  products   incorporate   established   immunoassay   technology   based  on
antibody-antigen reactions.  Antibodies are immune system proteins produced as a
result of an organism's immune response to substances  (antigens) foreign to the
body and specifically bind to antigens and signal the immune system to assist in
eliminating them.  Immunoassays are used for diagnostic  applications  where the
presence  or  absence of a specific  analyte  is being  evaluated  and allow the
detection of some  analytes at levels as low as one part per  billion.  Antigens
include  viruses,  bacteria,   parasites,  chemical  toxins  and  other  foreign
substances and hormones.

The HIV-1 urine assay format includes a standard 96 well microtiter  plate which
is compatible with standard laboratory instrumentation. The microwell plates are
coated with proprietary  recombinant  HIV-1 envelope  protein  antigen.  Patient
urine  and  the  unique  specimen   diluent  are  introduced  to  the  microwell
simultaneously. If HIV-1 antibodies are present, they bind to the antigen coated
well and remain during the subsequent wash steps. An enzyme labeled conjugate is
added to the well. This conjugate binds  specifically to human  antibodies which
remain from the previous  step.  Following  another wash,  substrate  reagent is
added and color  development  occurs due to the presence of the enzyme conjugate
in the  well.  This  color  is  measured  spectrophotometrically  on a  standard
laboratory  microwell  plate  reader.  The  presence  of HIV  antibodies  in the
specimen is  indicated by the  development  of color in the  microwell,  and the
intensity of the color is proportional to the amount of antibody.


                                       50


Our Urine Western Blot  supplemental  test combines the Cambridge  Biotech HIV-1
Western Blot test with a procedure we developed for testing urine specimens. Our
Urine  Western  Blot  test  is  based  on  the  combination  of  electrophoretic
separation  of  complex   mixtures  of  proteins   with  the  highly   sensitive
immunoblotting  technique.  This method has been highly useful in characterizing
the antigenic  profile of HIV-1 and describing  the immune  response to HIV-1 in
the serum/plasma of exposed or infected persons.

The  manufacture of our Urine Western Blot and Serum Western Blot tests involves
the  production of an  inactivated,  partially  purified HIV-1 lysate from HIV-1
propagated  in  an  H9/HTLV-IIIb  T-lymphcyte  cell  line.  HIV-1  proteins  are
separated  by  molecular  size  using gel  electrophoresis  of the lysate in the
presence of detergent (sodium dodecylsulfate).  The separated HIV-1 proteins are
electrotransferred from gel to a nitrocellulose membrane that is washed, blocked
to  minimize  non-specific  immunoglobulin  binding  and  packaged.  These tests
provide controls and components which enable the detection and  visualization of
HIV-1   antibodies   present  in  the   specimen   incubated   with   individual
nitrocellulose  membrane strips.  Bands  corresponding  to specific  location of
HIV-1  proteins  are used to  interpret  a positive,  negative or  indeterminate
result.

The format of both of our urine and blood rapid tests under development is based
on a lateral flow device where the  specimen  enters by capillary  action into a
sample pad, where  conditioning  of the specimen takes place.  The specimen then
moves into a  conjugate  pad where the  presence of  antibodies  in the urine or
blood  results in binding to a detection  molecule  carrying a color  indicator.
This antibody complex moves to a nitrocellulose  test strip containing the HIV-1
and HIV-2 antigen  targets and in a separate area as a control zone. If HIV-1 or
HIV-2 specific antibodies are present in the complex, binding occurs between the
antibody complex and the antigen band forming a red line.  Absence of a red line
at this location  indicates the absence of HIV-1 and/or HIV-2  antibodies  and a
non-reactive result for the specimen. The validity of that result depends on the
binding of the antibody complex to the control zone to form a red line.  Results
are seen in about 20 minutes in  contrast  with the  laboratory  based EIA tests
that take 2 to 3 hours to perform.

Patents, Proprietary Rights and Licenses

We seek patent and other  intellectual  property  rights to protect and preserve
our  proprietary  technology  and our right to  capitalize on the results of our
research and development  activities.  We also rely on trade secrets,  know-how,
continuing  technological  innovations  and licensing  opportunities  to provide
competitive  advantages  for our  products  in our  markets  and to develop  new
products.

We have two United States patents, one pending United States patent application,
six foreign patents, and eight pending foreign patent applications. In addition,
we  currently  license the right to use certain  patents and other  intellectual
proprietary  rights from NYU, Cambridge Biotech and TAMUS. These licenses secure
intellectual property rights necessary for the manufacture and sale of our ELISA
test products as summarized below:




- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                                     Expiration -
                                                                                                     upon expiration
Issuer of License          Owner               Description                  Additional provisions    of patent in:
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                         
EIA:
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   NYU                     NYU                 Exclusive license for        Right to make, use,      2009
                                               using urine in place of      sell and sublicense
                                               blood as a specimen sample   products utilizing the
                                               for detecting HIV            technology described
                                                                            in the patent
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   Texas A&M University    TAMUS               Non-exclusive license for    Right to make, have      2009
   System (TAMUS)                              using insect cells to        made, use and sell
                                               obtain gp160                 products based on its
                                                                            proprietary
                                                                            recombinant expression
                                                                            systems
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   bioMerieux (Cambridge   Harvard University  Non-exclusive license for    Sublicense to make,      2005
   Biotech Corporation)                        using gp160 to detect HIV    have made, use and
                                               infection                    sell products that
                                                                            relate to the licensed
                                                                            technology
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------




                                       51





- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                                     Expiration -
                                                                                                     upon expiration
Issuer of License          Owner               Description                  Additional provisions    of patent in:
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                         
Urine Western Blot
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   NYU                     NYU                 Exclusive license for        Right to make, use,      2009
                                               using urine in place of      sell and sublicense
                                               blood as a specimen sample   products utilizing the
                                               for detecting HIV            technology described
                                                                            in the patent
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   NIH                     Pasteur Institute   HIV 1 virus                                           2112

- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
Serum Western Blot
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   NIH                     Pasteur Institute   HIV 1 virus                                           2112
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------



As we pursue  the  development  of our rapid HIV  tests,  we will need to obtain
licenses or other rights under,  or enter into  distribution  or other  business
arrangements in connection with, certain patents for HIV-2,  peptides,  analytes
and lateral  flow  technology,  in order to  manufacture  and sell our rapid HIV
tests.  See the Section  entitled,  "Risk  Factors" for a further  discussion of
these  issues.  To obtain these  licenses,  we will have to pay upfront fees and
ongoing royalties.

In April 2004, we announced that we entered into a license and supply  agreement
with Adaltis,  Inc. under which Adaltis will supply us with key HIV-1/2 peptides
for use in our rapid tests. The table below identifies the primary patent suites
we will need to acquire for the manufacture of our rapid tests.




- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                                     Expiration -
                                                                                                     upon expiration
Issuer of License          Owner               Description                  Additional provisions    of patent in:
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
                                                                                         
Rapid Urine:
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   Adaltis, Inc.           Adaltis, Inc.       Non-exclusive license for    Right to make, have      2010 - 2012
                                               use of HIV-1 and HIV-2       made, use and sell
                                               peptide sequences            Calypte products
                                                                            throughout the world,
                                                                            except in Canada,
                                                                            utilizing the
                                                                            technology described
                                                                            in the patent
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   Bio-Rad Laboratories                        Non-exclusive license for    Right to make, have      2006 - 2015
   and Bio-Rad Pasteur                         use of HIV-2 virus           made, use and sell
   (In negotiations)                                                        products utilizing the
                                                                            technology described
                                                                            in the patent
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------
   Abbott Laboratories                         Non-exclusive sublicense     Right to make, have      2008 - 2017
   (In negotiations)                           of the Swanson, et al and    made, use and sell
                                               Guire et al lateral flow     products utilizing the
                                               patent suite                 technology described
                                                                            in the patent
- -------------------------- ------------------- ---------------------------- ------------------------ -----------------



We have filed patent  applications in the United States,  China and Russia for a
"Rapid Test For Antibodies  Against HIV In Urine." These applications are in the
early stages of prosecution but establish a priority date for our invention.

Although important,  the issuance of a patent or existence of trademark or trade
secret  protection  does not in  itself  ensure  the  success  of our  business.
Competitors may be able to produce products competing with our patented products
without  infringing  our  patent  rights.  Issuance  of a patent in one  country
generally does not prevent  manufacture or sale of the patented product in other
countries.  The issuance of a patent is not  conclusive  as to validity or as to
the enforceable scope of the patent.  The validity or enforceability of a patent
can be  challenged  by  litigation  after its  issuance.  If the outcome of such
litigation  is adverse to the owner of the patent,  the owner's  rights could be
diminished or withdrawn.  Trade secret  protection does not prevent  independent
discovery and exploitation of the secret product or technique.


                                       52


We are not aware of any pending claims of  infringement  or other  challenges to
our patents or our rights to use our  trademarks  or trade secrets in the United
States or in other countries.

We require our employees, consultants, outside collaborators, and other advisors
to execute  confidentiality  agreements  upon the  commencement of employment or
consulting relationships with us. These agreements provide that all confidential
information  developed by or made known to the  individual  during the course of
the  individual's  relationship  with  us is to be  kept  confidential  and  not
disclosed  to third  parties  except in specific  circumstances.  In the case of
employees,   the  agreements  provide  that  all  inventions  conceived  by  the
individual during his or her tenure with us will be our exclusive property.

Government Regulation

Overview

Our  products  are subject to  extensive  regulation  by the FDA and, to varying
degrees, by state and foreign regulatory agencies. Our products are regulated by
the FDA under the Federal Food,  Drug, and Cosmetic Act (the "Act"),  as amended
by the Medical Device  Amendments of 1976, the Safe Medical Devices Act of 1990,
the  FDA  Modernization  Act of  1997,  and the  Medical  Devices  User  Fee and
Modernization  Act ("MDUFMA") among other laws. Under the Act, the FDA regulates
the pre-clinical and clinical testing,  manufacturing,  labeling,  distribution,
sale and promotion of medical devices in the United States. Beginning in October
2002,  MDUFMA  requires  companies  to pay  substantial  user  fees for many FDA
applications for new product approvals and for some product  modifications.  The
FDA  prohibits  a  device,  whether  or not  cleared  under a 510(k)  pre-market
notification,  or approved  under a pre-market  approval  ("PMA") or a biologics
license  application,  from  being  marketed  for  unapproved  uses.  If the FDA
believes  that a  company  is not in  compliance  with the  regulations,  it can
institute  proceedings  to detain or seize a product,  issue a recall,  prohibit
marketing  and sales of the  company's  products  and assess  civil and criminal
penalties against the company, its officers or its employees.

We plan to sell our  products in certain  foreign  countries  which impose local
regulatory requirements. The preparation of required applications and subsequent
FDA and  foreign  regulatory  approval  processes  are  expensive,  lengthy  and
uncertain.  Failure to comply with FDA and foreign regulatory requirements could
result in civil monetary  penalties or criminal  sanctions,  restrictions  on or
injunctions  against marketing of our products.  Additional  enforcement actions
may potentially include seizure or recall of our products,  and other regulatory
actions.  There can be no  assurance  that we will be able to  obtain  necessary
regulatory  approvals or  clearances in a timely manner or at all, and delays in
receipt of or  failure to receive  such  approvals  or  clearances,  the loss of
previously received approvals or clearances,  or failure to comply with existing
or future  regulatory  requirements  would have a material adverse effect on our
business, financial condition and results of operations.

HIV-1 Screening and Supplemental Tests

Our ELISA tests are  regulated by the FDA Center for  Biologics  Evaluation  and
Research.  When our EIA  screening  test was  submitted  to the FDA in September
1992,  the  FDA  required  a  product   license   application   ("PLA")  and  an
establishment  licensing  application  ("ELA")  for  our  Berkeley,   California
manufacturing  facility.  In August 1996,  we received a product  license and an
establishment  license from the FDA to  manufacture  and sell, in interstate and
foreign commerce, our EIA screening test for use in laboratory settings.

In December 1998, when we acquired the assets relating to the Cambridge  Biotech
Western  Blot tests for HIV-1,  Cambridge  Biotech had a product  license and an
establishment  license from the FDA for both the urine and  serum-based  Western
Blot tests. In March 1999, the licenses were transferred from Cambridge  Biotech
to us and replaced with a Biologics  License  ("BL").  In January 2001,  our EIA
screening  test was  transferred  from the biologics  license to an approved PMA
license  as a Class III  medical  device  concurrent  with the  approval  of our
Alameda, California manufacturing facility. In June 2001, our urine Western Blot
test, manufactured in our Rockville, Maryland facility, was transferred from the
biologics license to an approved PMA license as a Class III medical device. As a
result of the closure of our Alameda  facility  and the planned  transfer of EIA
screening  test  manufacturing  to  Rockville,  we  have  applied  for a PMA  to
manufacture  and sell our EIA test kits at our Rockville  facility and expect to
receive it in the spring of 2005.


                                       53


In December 2002, we received FDA approval to eliminate the lot release  testing
requirement  for our EIA test.  In February  2003,  we received FDA approval for
elimination of lot release testing for our urine Western Blot test.

Clinical Laboratory

We have  not  established  nor do we  plan to  establish  a  clinical  reference
laboratory. Our customers depend upon the services and facilities of independent
clinical reference laboratories to process our ELISA tests.

Manufacturing Facilities

The FDA requires our products to be  manufactured in compliance with its Quality
System/Good Manufacturing Practices ("GMP") regulations. In addition, we were or
are subject to certain additional manufacturing regulations imposed by the State
of  California  for our  Alameda  facility  and the  State of  Maryland  for our
Rockville  facility.  These regulations require that we manufacture our products
and  maintain  related  documentation  for testing and control  activities.  Our
facilities and manufacturing  processes have been periodically  inspected by the
FDA and other agencies and remain subject to audit from time to time. We believe
that we are in  substantial  compliance  with all  applicable  federal and state
regulations.  Nevertheless,  there can be no  assurance  that our  manufacturing
facilities  will  satisfy  FDA, GMP or  California  and  Maryland  manufacturing
requirements.  Enforcement of the GMP regulations has increased significantly in
the last several years,  and the FDA has publicly stated that compliance will be
more  strictly  enforced.  In the  event the FDA  determines  that we are not in
compliance  with its  regulations  and,  to the  extent  that we are  unable  to
convince  the FDA of the  adequacy of our  compliance,  the FDA has the power to
assert  penalties,  including  injunctions  or temporary  suspension of shipment
until compliance is achieved. In addition,  the FDA will not approve a biologics
license  or PMA if the  facility  is  found in  noncompliance  with  GMPs.  Such
penalties  could  have a  material  adverse  effect on our  business,  financial
condition and results of operations.

We are also  subject  to  regulation  by  other  federal  entities,  such as the
Occupational Safety and Health Agency, the Environmental  Protection Agency, and
by various state  agencies,  including the California  Environmental  Protection
Agency. Federal and state regulations regarding the manufacture,  sale or use of
our  products  are  subject to future  change,  and these  changes  could have a
material  adverse  effect on our  business,  financial  condition and results of
operations.

Product Liability and Recall Risk; Limited Insurance  Coverage.  The manufacture
and  sale of  medical  diagnostic  products  subjects  us to  risks  of  product
liability claims or product recalls, particularly in the event of false positive
or false negative  reports.  A product recall or a successful  product liability
claim or claims that exceed our insurance coverage could have a material adverse
effect on us. We maintain a $10,000,000  claims made policy of product liability
insurance  against which no claims have been made.  However,  product  liability
insurance is expensive.  In the future, we may not be able to obtain coverage on
acceptable terms, if at all. Moreover, our insurance coverage may not adequately
protect us from  liability that we incur in connection  with clinical  trials or
sales of our products.

International

Our   Alameda,   California   manufacturing   site  was  awarded   International
Organization for Standardization  ("ISO") 9001/EN 46001/ ISO 13485 certification
on March 14, 2001 and  maintained  that  certification  until the  facility  was
closed as part of our  consolidation of  manufacturing  operations in Rockville.
Our Rockville,  Maryland  manufacturing site underwent an assessment in December
2003  for  ISO   certification.   The  Rockville  site  was  awarded  ISO  13485
certification effective May 14, 2004. The certification is effective until March
15, 2006.

Distribution of our products  outside the United States is subject to regulatory
requirements  that vary from  country to  country.  Our  export  from the United
States of certain  of  products  that have not yet been  approved  for  domestic
commercial  distribution  is subject to FDA export  restrictions.  The  European
Union ("EU") requires a CE mark as well as ISO 9001 certification to qualify for
sale in the EU.  We have no  immediate  plans to seek such  qualification.  In a
number of foreign countries,  FDA approval is required prior to approval in that
country to avoid additional  in-country  regulatory  processes.  Other countries
require  approval  in  the  country  of  manufacture  to  avoid  the  in-country
regulatory  processes.  Still  other  countries  look  to  the  results  of  WHO
evaluations for guidance.

WHO serves as both a  quasi-regulatory  body and a potential  funding source for
many  developing  countries  that might not  otherwise  possess  the  regulatory
infrastructure  or financial  resources to avail  themselves of products for the
diagnosis and treatment of HIV and AIDS. We believe that a strong performance of
our proposed rapid urine tests in a WHO evaluation  would be an equally,  if not
more,  effective  demonstration  of the  viability  of  urine  testing


                                       54


for HIV  antibodies  than the evaluation we earlier  contemplated  for our ELISA
tests.  We have been  advised by WHO that its bulk  procurement  program for HIV
tests  focuses on  diagnostic  and blood  donation  screening  tests  capable of
detecting  the  presence of both HIV-1 and HIV-2  antibodies.  Although  WHO has
previously  reported  the  results of its Phase 1 trials of our  current EIA and
Western Blot tests on its website,  WHO has advised us that,  in  principle,  it
views those tests as suitable only for  surveillance  purposes and therefore not
eligible  for  WHO's  bulk  procurement  program.  We  anticipate  that  certain
countries  will look to the  results  of WHO  evaluations  for  guidance  on the
potential  uses of urine tests and for this reason we intend to continue to work
with WHO. In our view,  the  attributes of our planned rapid tests for HIV-1 and
HIV-2 in both urine and whole blood  samples more closely match the needs of the
developing  world and,  once  evaluated by WHO, are more likely to meet its bulk
procurement  eligibility criteria.  For these reasons, we may request WHO either
to put further  evaluations  of our ELISA tests on hold or to drop them entirely
in order to help WHO focus its limited resources on evaluation of the technology
to be employed by the rapid tests.

We  have   obtained   regulatory   approval  for  our  ELISA  tests  in  certain
international  markets including  Malaysia,  China,  Indonesia,  the Republic of
South  Africa,  Kenya and  Uganda.  These  approvals  validate  the use of urine
testing in the  diagnosis of HIV. We believe that the two largest  international
markets  for our urine  ELISA  tests are (1) China,  where our ELISA  tests have
already been granted approval as a medical device and where we are attempting to
achieve  expanded  access to governmental  testing  applications by obtaining an
additional  Biologics Branch approval,  and (2) Russia, where we are considering
expansion.  Although  we have  obtained  approval  for our urine  ELISA tests in
certain African  countries and are engaged in the approval process in others, we
have  determined  that most  hospitals  and voluntary  testing  centers in these
countries,  due to their limited  infrastructure,  can best utilize our proposed
HIV urine rapid test. Even though many hospitals, clinics or testing centers may
recognize the advantages of and prefer urine testing, there is negligible demand
for  our  current  urine  ELISA  tests  as they  would  prefer  to wait  for the
availability  of our announced  rapid test products  than  implement  procedures
applicable to the current lab-based urine testing alternative.

Since we are still in the development stage for our rapid test products, we have
not begun the regulatory process for those tests in any target market,  although
we have begun  preparations  for clinical  trials in China.  We believe that the
regulatory processes in certain foreign countries having a greater prevalence of
HIV will be faster,  which should result in a quicker timeframe for approval and
right to bring our rapid  tests to  market.  Consequently,  we plan to focus our
efforts on obtaining approvals for our rapid tests in those countries. We expect
that our  initial  focus for  obtaining  approval  of our rapid tests will be in
Africa and the key "next wave"  countries  of China,  Russia and,  subsequently,
India.  We  anticipate  that there will be distinct  approval  processes for the
professional market (hospitals,  clinics, testing centers and government testing
applications) and the  over-the-counter  market. The  over-the-counter  approval
process may include  additional  requirements  relating to self-testing with the
rapid test.  In China,  regulatory  approval  for a product is granted  only for
products  manufactured  in China and only to the  Chinese  manufacturer  of such
product.  As a result,  for us to maintain  control of our products in China, we
plan to  manufacture  our products in China  through our Beijing  Calypte  Joint
Venture.  Failure to obtain necessary  regulatory  approvals for our rapid tests
would have a material  adverse effect on our business,  financial  condition and
results of operations.

Competition

Competition  in the  market  for HIV  testing  is  intense  and is  expected  to
increase.  We believe that the  principal  competition  will come from  existing
laboratory-based blood tests,  point-of-care rapid blood tests, oral fluid-based
tests,  or  other  laboratory-based  urine  assays  that may be  developed.  Our
competitors  include  specialized  biotechnology firms as well as pharmaceutical
companies with biotechnology divisions and medical diagnostic companies, many of
which  are   substantially   larger  and  have  greater   financial,   research,
manufacturing, and marketing resources.

Important  competitive factors for our products include product quality,  price,
ease of use, customer service, and reputation.  Industry competition is based on
the following:

o    Scientific and technological capability;

o    Proprietary know-how;

o    The ability to develop and market products and processes;

o    The ability to obtain FDA or other regulatory approvals;


                                       55



o    The ability to manufacture  products that meet applicable FDA  requirements
     (i.e., good manufacturing practices);

o    Access to adequate capital;

o    The ability to attract and retain qualified personnel; and

o    The availability of patent protection.

We expect competition to intensify as technological advances are made and become
more  widely  known,  and as new  products  reach the market.  Furthermore,  new
testing  methodologies could be developed in the future that render our products
impractical,  uneconomical  or  obsolete.  There  can be no  assurance  that our
competitors  will not  succeed  in  developing  or  marketing  technologies  and
products that are more  effective than those we develop or that would render our
technologies and products obsolete or otherwise  commercially  unattractive.  In
addition,  there can be no assurance  that our  competitors  will not succeed in
obtaining regulatory approval for these products,  or introduce or commercialize
them  before we can do so.  These  developments  could have a  material  adverse
effect on our business, financial condition and results of operations.

Significant  competitors  for our current and  developmental  stage HIV antibody
tests are Abbott  Laboratories,  bioMerieux,  the Ortho Diagnostics  division of
Johnson & Johnson and Bio-Rad  Laboratories,  which sell blood-based  HIV-1 EIAs
and Orasure Technologies,  Inc., which sells FDA-approved HIV tests including an
oral fluid-based  laboratory test, a blood-based  rapid HIV-1 and HIV-2 test and
an oral fluid-based rapid HIV-1 test.  MedMira and Trinity Biotech each recently
received FDA approval to sell rapid HIV-1 blood tests in the United  States.  We
believe other  companies may seek FDA approval to sell competing rapid HIV tests
in the future.

Several  companies market or have announced plans to market  blood-based or oral
fluid-based  HIV rapid  tests in the  United  States and  abroad.  We expect the
number of blood-based and oral  fluid-based HIV rapid tests to increase as these
tests become more widely accepted.  We are not aware of any companies  marketing
or planning to market  competing  urine-based HIV rapid tests,  although,  Murex
Corporation,  owned by  Abbott  Laboratories,  has  previously  announced  urine
capability for an HIV test.

Outside of the United States,  where  regulatory  requirements for HIV screening
tests are sometimes less  demanding,  a much wider range of  competitors  may be
found. Manufacturers from Japan, Canada, Europe, and Australia offer a number of
HIV screening  tests in those  markets  including  HIV-1 and HIV-2 tests,  rapid
tests and other  non-EIA  format  tests.  There  can be no  assurances  that our
products will compete  effectively against these products in foreign markets, or
that these competing products will not achieve FDA approval.

Employees

As of  July  2,  2004,  following  the  cessation  of  our  Alameda,  California
manufacturing  operations,  we had an aggregate  of 51 full time,  part time and
temporary  employees,  10 of whom were  engaged  in or  directly  supported  our
research  and  development  activities,   30  of  whom  were  in  manufacturing,
manufacturing support and quality assurance, one of whom was in marketing and 10
of whom were in administration.  Our employees are not represented by a union or
collective  bargaining  entity.  We believe our relations with our employees are
good.


                                       56



Risk Factors

See Risk Factors beginning on page 5 of this Prospectus.


                      MANAGEMENT'S DISCUSSION AND ANALYSIS

The following  information  should be read in conjunction  with the consolidated
financial  statements  and  related  notes that are  provided  as a part of this
Prospectus.

Information we provide in this  Prospectus or statements  made by our directors,
officers or employees may  constitute  "forward-looking"  statements  and may be
subject  to  numerous  risks  and  uncertainties.  Any  statements  made in this
Prospectus,  including any statements incorporated herein by reference, that are
not statements of historical fact are forward-looking statements (including, but
not limited to,  statements  concerning  the  characteristics  and growth of our
market  and  customers,  our  objectives  and plans for  future  operations  and
products  and  our  liquidity  and  capital  resources).   Such  forward-looking
statements are based on current  expectations  and are subject to  uncertainties
and other  factors  which may involve  known and unknown  risks that could cause
actual  results of  operations  to differ  materially  from those  projected  or
implied. Further, certain forward-looking  statements are based upon assumptions
about future events which may not prove to be accurate.  Risks and uncertainties
inherent in forward looking statements include, but are not limited to:

o    fluctuations in our operating results;

o    announcements of technological  innovations or new products which we or our
     competitors make;

o    FDA and international regulatory actions;

o    developments with respect to patents or proprietary rights;

o    changes in stock market analysts'  recommendations regarding Calypte, other
     medical products companies or the medical product industry generally;

o    changes in domestic or international conditions beyond our control that may
     disrupt our or our customers' or distributors'  ability to meet contractual
     obligations;

o    changes in health care policy in the United States or abroad;

o    our ability to obtain  additional  financing  as necessary to fund both our
     long- and short-term business plans;

o    fluctuations in market demand for and supply of our products;

o    public  concern as to the safety of products that we or others  develop and
     public concern regarding HIV and AIDS;

o    availability of  reimbursement  for use of our products from private health
     insurers,   governmental  health   administration   authorities  and  other
     third-party payors; and

o    price and volume  fluctuations  in the stock  market at large  which do not
     relate to our operating performance.

The  forward-looking  information set forth in this Prospectus is as of July 14,
2004, and Calypte  undertakes no duty to update this information.  Should events
occur  subsequent  to July  14,  2004  that  make it  necessary  to  update  the
forward-looking   information   contained  in  this   Prospectus,   the  updated
forward-looking  information will be filed with the SEC in a Quarterly Report on
Form 10-QSB,  as an earnings or other  release  included as an exhibit to a Form
8-K or as an amendment  to this  registration  statement,  each of which will be
available at the SEC's website at www.sec.gov or our website at www.calypte.com.
More information  about potential  factors that could affect Calypte's  business
and  financial  results is  included  in the  section  entitled  "Risk  Factors"
beginning on page 5 of this Prospectus.

Overview and Outlook

Since 1998,  following  FDA approval for both the current  ELISA  screening  and
supplemental tests,  Calypte has been marketing and selling in the United States
the only available  FDA-approved  urine-based HIV testing method.  We have since
received  regulatory  approval  to sell  our  ELISA  tests in  China,  Malaysia,
Indonesia,  and in parts of Africa.  Unfortunately,  the tests have not received
significant  acceptance  in those  markets.  We  believe  that  there is a small
established  market  for our  current  ELISA  tests in the  United  States and a
potential  market  in  certain  foreign   countries  with  established   medical
diagnostic  and treatment  infrastructures  as well. We believe that rapid tests
are more  suitable in many of the countries in which  HIV/AIDS is epidemic,  and
particularly so in the "next wave" countries of Russia, China, Africa and India.
Consequently,  we are now actively working to  commercialize  our HIV rapid test
products  -and to obtain  requisite  regulatory  approvals  to  introduce  these
products in these countries,  as well as in other international  markets.  There
can be no assurance  that we will achieve or sustain  significant  revenues from
sales of HIV diagnostic tests,  internationally  or domestically,  or from other
new products we may develop or introduce.


                                       57


During the first quarter of 2002, our financial  condition and cash availability
deteriorated so significantly that by early April 2002 we had determined that we
would  need to  curtail  our  operations  and  consider  filing  for  bankruptcy
protection.  We announced  that the  situation  had reached a critical  point in
mid-April  2002,  at which time  management  began the  process of winding  down
operations,  with the likely expectation of a complete cessation of business. In
early May 2002, however, before the wind-down process was completed, we received
commitments for what management deemed to be sufficient  additional financing to
resume operations and stopped the wind-down process. In conjunction with the new
financing  commitment,  the Board of  Directors  appointed a new chairman and we
resumed operations.

We must achieve  profitability and sustainable cash flows for our business model
to succeed.  To the extent that we have not yet achieved  these  objectives,  we
must  continually  evaluate  both our current and  long-term  business  plan and
capital  requirements.  While the validation of our business plan is ongoing, we
have identified and begun to implement certain critical components:

o    We  have  strengthened  our  financial  position  with  the  receipt  of an
     aggregate of $12.5 million in new investment financing in two third-quarter
     2003  transactions from Marr Technologies BV ("Marr") and the approximately
     $10.2 million in aggregate net proceeds  from our  recently-completed  PIPE
     financings,  in which Marr also  participated.  Marr now owns approximately
     28% of our outstanding  common stock and is our largest  stockholder.  Marr
     has  previously  identified  itself  in a public  filing  with the SEC as a
     "related party."  Additionally,  under the amended terms of the Marr Credit
     Facility  between us and Marr, we have access to an additional $3.6 million
     from the issuance of 9% promissory notes that we may issue through December
     31, 2004. We believe that our currently available cash, plus the funds that
     would be  available,  if  necessary,  through the Marr Credit  Facility are
     adequate to sustain our  operations at expected  levels  through 2004.  If,
     however, sufficient funds are not available from our operations to fund our
     business in 2005 and beyond or to repay any  promissory  notes we may issue
     under the Marr Credit Facility when they mature in May 2005, we may need to
     arrange  additional  financing,  attempt to extend or otherwise  modify the
     promissory note or make other arrangements.  There can be no assurance that
     additional  financing  would be available or, if it is  available,  that it
     would be on acceptable terms.

o    We have ceased operations and closed down our former manufacturing facility
     in Alameda,  California.  The  consolidation of our domestic  manufacturing
     operations is progressing according to our schedule and, when completed, is
     expected to eliminate approximately $1 million of annual expense, including
     approximately  $500,000  in  annual  occupancy  costs,  and  create  a more
     efficient and cost effective manufacturing structure.

o    We are  committed to and focused on the  introduction  of one or more rapid
     HIV-1 and HIV-2 diagnostic tests in international markets. We will continue
     to distribute our ELISA test products  internationally  through our current
     distribution networks and will also seek new distribution relationships for
     our  current  and  future  test  products.  We  may  set  up  international
     manufacturing  and  distribution  facilities  utilizing  joint  venture  or
     similar  entities.  We believe our initial  international  focus will be on
     China and Russia, two of the "next wave" HIV epidemic countries.  We intend
     to  pursue  additional   international   distribution   opportunities  from
     government AIDS initiatives and humanitarian  organizations as they provide
     funds for HIV testing in lesser-developed countries where the HIV infection
     is epidemic.

Guidance We have  previously  projected 2004 annual sales of our legacy business
products,   our  current,   primarily   domestic,   ELISA  tests,   to  generate
approximately  $3.2  million  to $4.0  million  in  aggregate  revenues,  spread
generally evenly over the four quarters of the year. We continue to believe that
projection is realistic.  Revenue from sales of those products  during the first
quarter of 2004 was $971,000. Revenue for the second quarter of 2004 is expected
to be within  our  previously  stated  guidance.  Sales of our urine  ELISA test
products will continue to be primarily to reference laboratories  supporting the
domestic  life   insurance   industry  and  sales  of  our  Serum  Western  Blot
supplemental test will continue to be primarily to distributors, blood banks and
similar testing  institutions.  Although we have received certain  international
approvals for our ELISA tests, we are not offering guidance on any international
sales of these products as we have no firm purchase orders. Additionally, we are
not offering  any  guidance at this time with respect to potential  sales of the
ELISA  incidence  tests we expect to manufacture  using the technology  recently
licensed  from  the CDC.  Although  we have  received  inquiries  regarding  the
availability  of the product for sale and expect that it might be available  for
international  distribution  later in the second half of 2004,  we must complete
the technology  transfer and determine and complete the regulatory  requirements
before we can sell the product.


                                       58


We have  previously  indicated that our primary focus for 2004 is completing the
development and  commercialization  of certain rapid HIV tests. We are currently
involved in international  field trials of our developmental  stage urine, blood
and oral fluid  rapid HIV tests in  Thailand.  The test  development  process is
iterative   and  subject  to   unanticipated   delays.   Intellectual   property
considerations  are critical,  as our choices will affect our future  ability to
commercialize the test products.  Based on our current  estimates,  these trials
will continue during the second quarter of 2004. While there can be no assurance
that we will complete the development process during this timeframe, we have, in
parallel,  initiated  certain  manufacturing  agreeemnts  in Thailand and China.
Should additional  improvements or modifications be required for only one of the
developmental  stage  rapid  HIV  tests,  we  may  elect  to  proceed  with  the
commercialization of one or both of the other rapid HIV tests. Additionally,  we
have just begun the research on a blood-based  rapid HIV test for diagnostic and
surveillance  purposes under the terms of a Cooperative Research and Development
Agreement with the CDC.

Commercialization  of our  proposed  rapid  HIV  tests  entails  many  steps and
variables  not under our  control.  We expect  that  different  regulations  and
customs in each foreign  country will further  complicate the  commercialization
process.  As a result,  we are unable to predict with any  certainty a timetable
for  the   various   steps   and   milestones   required   for  the   successful
commercialization of our developmental stage products.  Nevertheless, we believe
that the primary milestones necessary to achieve  commercialization of our rapid
HIV tests include the following:

o    Achievement of desired performance in one or more field evaluations.

o    Acquisition of necessary intellectual property rights.

o    Entrance into manufacturing arrangements in targeted countries.

o    Acquisition of regulatory approval in targeted countries.

o    Performance of clinical trials.

o    Initiation of manufacturing and distribution efforts for commercial sale.

o    Prediction with certainty of the amount of investment required.

Based on our current  understanding of the intellectual  property  landscape and
the various  regulatory  processses,  we do not expect to  generate  significant
revenues,  if any, from the sale of any rapid HIV test products  during 2004. It
will take at least six months from the time we commence  the process to complete
the regulatory  approval process in China.  Depending on the manufacturing  site
chosen to manufacture  products for importation  into Russia,  we may be able to
commence a regulatory  process of six to 12 months there in the third quarter of
2004. We have recently entered into an agreement with a manufacturer in Thailand
which we expect will enable us to supply rapid tests in Russia,  Southeast  Asia
and certain parts of Africa,  subject to regulatory approval.  Products might be
ready  for  market  in  Africa  late in 2004 or early in 2005.  While we  cannot
estimate the regulatory approval process in various other international markets,
we are  encouraged  by the interest we have  received in our proposed  rapid HIV
tests.

We believe that the key to our  penetration  of the Chinese market will hinge on
the  success  of the  Beijing  Calypte  Joint  Venture  with our  rapid HIV test
products in China. Early indications,  based on meetings with high-level Chinese
authorities in which both we and  representatives  of our joint venture  partner
participated,  lead us to expect that there is great  potential for  significant
revenues  from the sale of rapid  HIV tests in  China.  As a result,  based on a
memorandum of understanding with Beijing Tiantan Biological Products,  Co., Inc.
("BTBP"),  construction is underway on a Chinese  manufacturing  facility.  BTBP
manufactures  multiple vaccines for both viral and bacterial  infections and has
experience  in  operating  life-science  quality  manufacturing  facilities  and
obtaining  regulatory  approvals  for its  products.  Its parent  company is the
National  Vaccine & Serum  Institute  of the Peoples  Republic  of China,  which
currently  owns  over  66% of BTBP.  We have  also had  similar  indications  of
interest  in our  proposed  rapid HIV tests in  meetings  with  various  Russian
officials.  After receiving regulatory approval,  we visited local hospitals and
voluntary  testing  centers  in  Africa  during  the  third  quarter  of 2003 to
determine how best to proceed with sales of our current urine ELISA tests there.
As  a  result  of  these  visits,   we  have   determined  that  most  of  these
installations,  due to their limited infrastructure,  can best utilize our rapid
HIV tests.  Even though many centers  indicated a preference  for urine testing,
there is negligible  demand for our current ELISA tests. The clinics and testing
centers indicated that they preferred to wait for the rapid HIV tests.


                                       59


Our  operating  cash burn rate for the quarter  ended March 31, 2004 and for the
year ended December 31, 2003 averaged  approximately $1.1 million per month. Our
current cash balances  reflecting the approximately $8.8 million in net proceeds
from our May 2004 private  placement  and the  remaining  $5 million  commitment
available  through  December  31,  2004 under the amended  Marr Credit  Facility
should,  if our  Board of  Directors  unanimously  approves  the  issuance  of a
promissory  note  before the  availability  expires,  and in the  absence of any
unanticipated  material  costs and expenses  that are not factored into our cash
flow  projections,  be  adequate to sustain our  operations  at expected  levels
through 2004, which is expected to enable us to pursue the  commercialization of
our rapid HIV test products currently in development. Alternatively, we may seek
to raise additional  capital;  however,  we may not be able to obtain additional
financing on acceptable terms, or at all.

Our cash flow  requirements  may vary  materially  from those now planned due to
many  factors,  including,  but not limited to, the progress of our research and
development  of our rapid HIV test  products,  the scope and timing of strategic
alliances,  the costs and timing of the expansion of our manufacturing capacity,
the results of clinical testing, the magnitude of capital expenditures,  changes
in existing and potential  relationships  with business  partners,  the time and
costs of obtaining  regulatory  approvals,  the costs  involved in obtaining and
enforcing patents, proprietary rights and other necessary licenses, the cost and
timing  of  expansion  of sales  and  marketing  activities,  the  timing of the
commercial  launch of our new rapid HIV test products,  market acceptance of our
new rapid HIV  tests,  competing  technological  and  market  developments,  the
ability  to raise  additional  capital  in a timely  manner  and other  factors.
Additionally,  if,  and as, we issue a  Promissory  Note  under the Marr  Credit
Facility,  the Note would become due on May 31,  2005,  further  increasing  our
capital requirements.

There  can be no  assurance  that  subsequent  additional  financing,  if and as
necessary,  would  be  available,  or if it is  available,  that it  would be on
acceptable terms. The terms of an additional financing could involve a change of
control  and/or  require  stockholder  approval,  or could  potentially  trigger
anti-dilution  clauses that are contained in existing financing  agreements.  We
would  or might be  required  to  consider  strategic  opportunities,  including
merger,  consolidation,  sale or other  comparable  transaction,  to sustain our
operations. We do not currently have any agreements in place with respect to any
such new  strategic  opportunity,  and there can be no  assurance  that any such
opportunities  will be  available  to us on  acceptable  terms,  or at  all.  If
additional  financing is not available  when and if required or is not available
on  acceptable  terms,  or  we  are  unable  to  arrange  a  suitable  strategic
opportunity,  we will be in significant  financial jeopardy and we may be unable
to continue our operations at current levels, or at all.

Off-Balance   Sheet   Arrangements  We  do  not  have  any   off-balance   sheet
arrangements, as defined in Item 303(a)(4)(ii).


Critical Accounting Policies and Estimates

Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations is based upon Calypte's consolidated financial statements, which have
been prepared in accordance with accounting principles generally accepted in the
United States of America. The preparation of these financial statements requires
us to make estimates and judgments  that affect the reported  amounts of assets,
liabilities,  revenues and expenses, and related disclosure of contingent assets
and liabilities.  On an on-going basis, we evaluate our estimates and judgments,
including those related to bad debts,  inventories,  intangible  assets,  income
taxes,  restructuring  costs,  and  contingencies  and  litigation.  We base our
estimates on historical  experience and on various other factors that we believe
to be reasonable  under the  circumstances,  the results of which form the basis
for making  judgments about the carrying  values of assets and liabilities  that
are not readily  apparent  from other  sources.  Actual  results may differ from
these estimates under different assumptions or conditions.

We believe the following critical accounting policies,  among others, affect our
more  significant  judgments  and  estimates  used  in  the  preparation  of our
consolidated financial statements.

o    Revenue  Recognition We recognize  revenue from product sales upon shipment
     to  customers  and when all  requirements  related  to the  shipments  have
     occurred.  Should changes in terms cause us to determine these criteria are
     not  met  for  certain  future  transactions,  revenue  recognized  for any
     reporting period could be adversely affected.

o    Allowance  for  Doubtful  Accounts We maintain an  allowance  for  doubtful
     accounts on a specific  account  identification  basis for estimated losses
     resulting from the inability of our customers to make required payments. If
     the financial condition of our customers were to deteriorate,  resulting in
     an impairment of their ability to make payments,  or regulatory issues with
     our products were raised, additional allowances may be required.


                                       60


o    Inventory  Valuation  We adjust the value of our  inventory  for  estimated
     obsolescence or unmarketable  inventory equal to the difference between the
     cost of inventory  and the  estimated  market value based upon  assumptions
     about future demand and market  conditions and  development of new products
     by our  competitors.  Further,  since we have  continued to incur  negative
     gross profit on an annual basis, and have high fixed  manufacturing  costs,
     we also review our  inventories for lower of cost or market  valuation.  If
     actual  market  conditions  are less  favorable  than  those  projected  by
     management, additional inventory write-downs may be required. In connection
     with the build-up of inventory of our screening  test prior to the transfer
     of its manufacturing to our Rockville, MD facility, demand for this product
     could  fall  significantly   below  the  historical  levels  on  which  the
     production  was based or  international  demand  for this  product  may not
     occur, in which case we may have built excess inventory that we may have to
     dispose of at additional cost, or at a loss.

o    Deferred  Tax Asset  Realization  We record a full  valuation  allowance to
     reduce our  deferred  tax assets to the amount that is more likely than not
     to be realized.  While we have considered future taxable income and ongoing
     prudent and feasible tax planning  strategies in assessing the need for the
     valuation  allowance,  in the event we were to  determine  that we would be
     able to realize our  deferred tax assets in the future in excess of its net
     recorded  amount,  an adjustment  to the deferred tax asset would  increase
     income in the period such determination was made.

Wind-down and Restart

In mid-April 2002, as a result of insufficient  cash to continue our operations,
we announced  that we were winding down our  operations  and might have to cease
our operations entirely and file for bankruptcy.  We immediately  furloughed all
but a few  manufacturing  and  administrative  employees,  making no  separation
payments or payments of accrued  vacation to any  employees.  The  manufacturing
employees who were retained  completed certain lots of in-process  inventory and
readied them for sale and were then also  furloughed.  Immediately  prior to the
restart,  we had  terminated  all but 5  employees,  retaining  only the minimum
necessary to ensure  regulatory  compliance for our facilities should additional
financing  enabling a restart  become  available.  Upon  receipt of the  initial
financing  commitment that permitted the restart, we recalled key management and
manufacturing  employees  and began the  process of resuming  our  manufacturing
operations.  Other employees,  such as administrative and sales personnel,  were
recalled in stages as  required  and as funding  permitted.  We had 73 full- and
part-time  employees  prior to our  wind-down  and,  prior to the closure of our
Alameda,  California manufacturing facility in June 2004, we had returned to our
approximate  pre-wind-down  headcount  levels.  Not  all  of  the  pre-wind-down
employees  were  rehired,  and we believe our current  complement  is  generally
sufficient to meet our operational needs.

The costs of the wind-down and restart are difficult to quantify precisely. 2002
operations  reflect  both the  inherent  inefficiencies  in the  restart  of our
manufacturing  processes,  including  the excess  overhead  and  capacity  costs
incurred,  as well as the lower sales  demand  resulting  from  abnormally-large
purchases prior to the wind-down,  and the time required to rebuild demand among
customers  concerned  with  our  longer-term  stability.  Additionally,  we have
incurred  incremental  general and  administrative  costs,  as well as financial
costs in obtaining new capital  investments and financing in the Company,  (some
of them non-cash) attributable to consultants engaged in the restart process and
thereafter in investor relations initiatives within the financial community, and
in other areas of expertise.

Customer Trends

The  trends   discussed   below  reflect  our  more  recent  sales  results  and
expectations.  The sales mix for 2002 was abnormally skewed due to the impact of
the wind-down and restart, as discussed above.

ELISA Test Sales Sales of our EIA Screening  Test accounted for 66%, 63% and 45%
of our total sales for the three months ended March 31, 2004 and the years ended
December  31,  2003 and  2002,  respectively.  Sales of our Urine  Western  Blot
supplemental  test accounted for  approximately 3% of first quarter 2004 revenue
and  approximately  4% of revenue in both calendar year 2003 and 2002.  With the
possible  exception  of a  short  time  during  our  planned  transition  of EIA
manufacturing to our Rockville facility, we do not expect significant changes in
the level of sales or the  purchasers of our current urine EIA screening test in
the near future.  We are, however,  exploring  opportunities for our EIA test in
"next wave" countries such as China and Russia. Additionally, we have just begun
the technology  transfer from the CDC for a serum-based ELISA HIV incidence test
that we plan to market.  It is too early to project  any trends  from  potential
sales  of this  product,  although  we have  received  inquiries  regarding  its
expected availability. We expect that our rapid urine HIV tests, once completely
developed and  commercialized,  will  comprise an  increasing  proportion of our
future sales, as we expand our distribution of these products internationally.


                                       61


     Domestic  Sales Sales of our EIA Screening  Test to domestic life insurance
     reference  laboratories  accounted  for 96%, 89% and 85% of screening  test
     revenue  for  the  first   quarter  2004  and  the  years  2003  and  2002,
     respectively. These reference laboratory sales were distributed among three
     laboratories  during the first  quarter 2004 and four  laboratories  during
     calendar  2003 and 2002.  Individual  laboratory  sales as a percentage  of
     total  reference  laboratory  sales ranged from 13% to 66% during the first
     three months of 2004; from 2% to 63% during 2003, and from 2% to 59% during
     2002,  with LabOne being the largest  customer in all  periods.  In October
     2003,  LabOne  acquired  the  smallest  of the  above  mentioned  reference
     laboratories,  bringing  the  number  of  laboratories  to which we sell to
     three.  We do not expect this  acquisition to have a material effect on our
     aggregate  sales to  reference  laboratories.  We sell our  product  to the
     reference  laboratories  who service over 100 life insurance  companies who
     have committed to urine testing for HIV screening of at least some of their
     policy  applicants  and who  employ  the labs to  conduct  their  applicant
     testing. Individual life insurance companies can and do move their business
     from  one  laboratory  to  another  based on a  number  of  considerations,
     including the  availability  of urine  testing.  As the only supplier of an
     FDA-approved   urine  based   testing   algorithm   for  HIV-1,   reference
     laboratories  must use our  testing  products  to  satisfy  the  demand  of
     insurance companies desiring urine testing.  Based on our recent multi-year
     agreement with LabOne, we do not expect to lose LabOne, or any of the other
     current reference laboratories,  as a customer. However, should such a loss
     occur, the insurance  companies using  urine-based  testing in their policy
     underwriting  determinations  could  realign  themselves  with  another lab
     offering our urine-based testing algorithm. We could, however,  potentially
     lose a significant amount of business because insurance companies that rely
     on this large  laboratory  could switch to another form of testing,  either
     blood or oral fluid, and remain with LabOne. Further, any disruption in the
     supply  of this  sole-source  product  would  force our  customers  to find
     alternative  testing  solutions  - either  blood or oral  fluid.  In such a
     situation,  it is  unlikely  that we could  subsequently  regain a material
     amount of this business.  Direct or distributor sales of our screening test
     to domestic diagnostic clinics,  public health agencies and community-based
     organizations were not material in either period.  During the third quarter
     of 2003 we eliminated  the sales force that had focused on this diverse and
     disaggregated  market.  Sales of our Urine  Western Blot test are generally
     made to the same customers who purchase the EIA Screening Test.

     International  Sales  International sales of our EIA Screening Test are not
     currently a material  component of our revenue.  Although we have  obtained
     approval of our EIA Screening Test in several  international markets and we
     believe that such approvals  validate the use of urine as a testing medium,
     we see  little  interest  in our  current  format  screening  test  in most
     international   markets  and  project  minimal  revenues  from  their  sale
     internationally  in 2004.  The  distribution  agreement  with  our  Chinese
     distributor has been assumed by the Beijing  Calypte Joint Venture,  but as
     the distributor is unlikely to achieve the minimum  purchase  requirements,
     the  agreement  is not  expected  to be  renewed.  We are in the process of
     expanding  our  Chinese  ELISA test  approval,  which may open new  markets
     within the government  sector in China. We have no firm commitments at this
     time,  however. We are also seeking approval for our ELISA tests in Russia.
     As  noted  earlier,  we  have  just  begun  the  development  of  an  ELISA
     serum-based HIV incidence test based on technology  recently  licensed from
     the CDC and contemplate the development of a rapid test version.  We expect
     that these  products,  when and if available and approved by  international
     regulatory  authorities,  may have international research and public health
     applications, based on inquiries received to date.

     While we believe there is interest in our rapid HIV tests  currently  under
     development,  the  timing of  revenues  from our  rapid  HIV tests  will be
     contingent  upon  completing  our field  evaluations  and clinical  trials,
     acquiring   intellectual   property  rights,   establishing   manufacturing
     operations and obtaining the necessary regulatory approvals,  as more fully
     discussed  in the  comments  on  Guidance  earlier in this  section,  as we
     complete the  development  activities for our rapid HIV tests,  our primary
     focus will be on developing  manufacturing  relationships and developing or
     expanding distribution relationships.

     While many counties have their own regulatory  approval  processes,  others
     look to the  results of WHO  evaluations  for  guidance.  The World  Health
     Organization ("WHO") serves as both a quasi-regulatory body and a potential
     funding  source for many  developing  countries  that  might not  otherwise
     possess the  regulatory  infrastructure  or  financial  resources  to avail
     themselves  of products for the  diagnosis  and  treatment of HIV and AIDS.
     Calypte  believes that a strong  performance  of the rapid urine tests in a
     WHO evaluation would be an equally, if not more, effective demonstration of
     the  viability of urine  testing for HIV  antibodies  as the  evaluation we
     earlier  contemplated for the EIA and Western Blot algorithm.  We have been
     advised by WHO


                                       62


     that its bulk  procurement  program for HIV tests focuses on diagnostic and
     blood  donation  screening  tests capable of detecting the presence of both
     HIV-1  and HIV-2  antibodies.  Although  WHO has  previously  reported  the
     results of its Phase 1 trials of  Calypte's  current  HIV-1 EIA and Western
     Blot tests on its website, WHO has advised us that, in principle,  it views
     those tests as suitable  only for  surveillance  purposes and therefore not
     eligible for WHO's bulk procurement program. We anticipate,  however,  that
     certain  countries will look to the results of WHO evaluations for guidance
     on the potential  uses of urine tests and for this reason the Company wants
     to continue  to work with WHO. In our view,  the  attributes  of  Calypte's
     planned  rapid  tests for HIV-1  and  HIV-2 in both  urine and whole  blood
     samples will more closely match the needs of the developing world and, once
     evaluated by WHO, are more likely to meet its bulk procurement  eligibility
     criteria. For these reasons,  Calypte may request WHO either to put further
     evaluations of our EIA and Western Blot on hold or to drop them entirely in
     order  to help  WHO  focus  its  limited  resources  on  evaluation  of the
     technology employed by the rapid tests.

Serum  Western  Blot Sales Sales of our Serum  Western  Blot  supplemental  test
accounted  for 33%, 32% and 43% of our revenues for the three months ended March
31, 2004 and for the years ended December 31, 2003 and 2002, respectively. While
at this  time our  manufacturing  consolidation  with  respect  to the urine EIA
product  does not  impact  the  Serum  Western  Blot  product,  there  can be no
assurance that the final results will not impact the financial viability of this
product and our ability to maintain it on a long-term  basis.  Additionally,  in
mid-April 2004, our primary domestic  distributor for the serum Western Blot was
acquired by another  entity and  informed us that it would no longer  serve as a
distributor of our product.  We have not appointed a successor  distributor  and
while several of the former distributor's customers are now purchasing the serum
Western Blot directly from us, we do not know how many of these  customers  will
continue  using our test.  Furthermore,  while  the  Western  Blot is key in the
FDA-regulated  testing algorithm today, it is unclear if, or when, rapid testing
may substantially  replace  ELISA-based  testing. If that trend occurs, the need
for  Western  Blot  supplemental  tests  may also be  significantly  reduced  or
eliminated.

Viral  Lysate  Sales In 2002,  we sold  approximately  $0.2 million of HIV viral
lysate, a component used in manufacturing our Western Blot products and which we
have sold  sporadically  to another  manufacturer  of serum-based HIV diagnostic
tests and other parties.  Such sales  represented  approximately 6% of our total
revenues in 2002 and were  negligible  in 2003 and in the first quarter of 2004.
We do not consider such sales to be a core component of our on-going business.

Results of Operations

Years Ended December 31, 2003 and 2002

Calypte's  2003  revenues  totaled $3.5 million  compared  with $3.7 million for
2002, a decrease of $0.2 million or 6%.  Screening  test  revenues  increased by
$508,000 or 30%.  Sales of the screening  tests to insurance  company  reference
labs  increased  by  $528,000  or 37%.  During the fourth  quarter of 2003,  our
largest customer purchased remaining  consignment inventory on hand and switched
to a standard  contractual  relationship.  This  increased  our  fourth  quarter
revenue by approximately $167,000.  Additionally,  screening tests revenues were
lower than  historical  levels in 2002 due  primarily  to a reduction in product
availability as a result of our wind-down and restart.

International sales of our screening tests accounted for approximately  $173,000
and $143,000 in 2003 and 2002,  respectively.  International  sales  amounted to
approximately  5% of  total  revenue  in  2003  and  4%  in  2002.  Our  primary
international  sales  in both  2003 and 2002  were to our  Chinese  distributor.
Domestic  diagnostic and direct screening test sales were  insignificant in both
2003 and 2002.

Revenue from the sale of our supplemental  tests and viral lysate decreased $0.7
million or 35% in 2003  compared with 2002.  Urine Western Blot sales  decreased
$7,000 or 5%, from  $162,000 in 2002 to $154,000  in 2003.  Serum  Western  Blot
sales decreased by 30% or approximately  $0.5 million compared with 2002 levels.
The decrease is due to product  availability issues related to the wind-down and
restart,  as well as to the  loss  of  bioMerieux  as a  distributor  after  our
restart.  We engaged  Adaltis Inc. as our new  distributor in the second half of
2002, but have yet to regain our  pre-wind-down  market share, as there have not
been significant sales by Adaltis.

Sales of HIV viral lysate,  a component we use in the  production of our Western
Blot products and which we previously  sporadically sold to another manufacturer
of serum-based HIV diagnostic tests and other parties, decreased by $0.2 million
or nearly 100% compared to 2002 levels.  The sale of viral lysate  accounted for
approximately  6% of 2002  revenues.  We have not  sold  viral  lysate  since we
restarted  our  operations  in mid-2002  and we do not consider its sale to be a
core component of our on-going business.


                                       63


Of customers  accounting  individually  for more than 10% of our  revenues,  two
customers  accounted for an aggregate of 50% of our total revenues in 2003 and 3
customers  accounted  for an aggregate of 52% of our total  revenues in 2002. As
noted,  previously,  bioMerieux  accounted  for  approximately  18% of our total
revenues in 2002 and has not purchased from us since our mid-2002 restart.

Gross margin  decreased  from a loss of $2,492,000  (-68% of sales in 2002) to a
loss of $2,654,000  (-77% of sales in 2003). As an  FDA-regulated  manufacturing
entity with two geographically  diverse locations,  we incur a significant level
of relatively  fixed costs,  including  personnel-related  costs, to operate and
maintain our  manufacturing  facilities  in compliance  with Good  Manufacturing
Practices. Once those relatively fixed manufacturing costs are covered, we enjoy
a significant contribution margin on additional sales. When we incur those costs
without  sufficient  revenues  from the sale of our products to offset them,  we
report negative margins. To restart our manufacturing operations in 2002, we had
a  workforce  in  place at both  facilities  and  incurred  both  personnel  and
manufacturing process expenses throughout the second and third quarters of 2002,
however  only late in the third  quarter  was a complete  cycle of  post-restart
production  and  sales  achieved  at both  manufacturing  facilities.  Partially
mitigating the impact of the wind-down and restart on  manufacturing  operations
and expenses during 2002 was the completion of a facility  consolidation project
at our Rockville, Maryland location during the first quarter 2002, which reduced
occupancy  costs  by  approximately  $200,000  on an  annualized  basis  without
impacting  quality or efficiency.  2003 results  include a full year's  facility
costs in  product  cost  expense  whereas  only a portion  of these  costs  were
included in product  costs  during  2002.  Additionally,  the higher  margins we
achieved  from viral lysate sales  compared  with those  achieved  from sales of
either our screening or supplemental  tests improved the overall margin on sales
in 2002.  As noted  previously,  we did not sell viral lysate during 2003 and do
not expect viral lysate sales to recur in the near term.

Included in cost of sales,  a component  of gross  margin,  is royalty  expense,
which  we  pay  on  the  sale  of all  of  our  products.  Royalty  expense  was
approximately  $670,000 in 2003 and $412,000 in 2002. Our effective royalty rate
varies based on our product mix, with the rate being higher on our EIA screening
tests than on our urine or serum supplemental  tests.  Additionally,  certain of
our license  agreements  contain minimum royalty  provisions which, in both 2003
and 2002, exceed amounts due based on the contractual  percentage rates. In both
2002 and 2003, one licensor  accepted shares of our common stock in satisfaction
of  discounted  amounts  due for one or more  years in excess of the  percentage
royalty  rate.  The value of the common  stock  issued in both 2003 and 2002 was
recorded as royalty expense.

R&D costs increased $615,000 or 66% from $929,000 in 2002 to $1,544,000 in 2003.
Approximately  47%  of the  increase  is due to  expenses  associated  with  the
increased  headcount  involved  in our rapid  test  development.  The  remaining
increase is due to expense  associated  with the  acquisition  of specimens  and
product  prototypes in preparation  for clinical trials to pursue our rapid test
initiative.

Selling,  general and administrative  costs increased from $9,006,000 in 2002 to
$15,517,000  in 2003,  an increase of  $6,511,000  or 72%.  Sales and  marketing
expenses increased by approximately $1,096,000 or 70% composed primarily of:

o    Increases of $1,455,000 in marketing consulting contracts, and

o    Increases of $247,000 for marketing materials.

o    Partially  offsetting  these  increases  was a  decrease  in  salaries  and
     benefits  expenses due to the elimination of our direct sales and marketing
     force which occurred between June and August of 2003.

General and  administrative  expenses  increased by approximately  $5,415,000 or
80%. The primary components of the increase include the following:

o    An  increase  of  $3,325,000  in  primarily  non-cash  expense  recorded in
     connection  with the  issuance of warrants and options to  consultants  and
     third party firms for various investor relations and other projects;

o    An increase of $1,200,000 in compensation expense comprised of

     o    Severance costs paid to senior management

     o    Restoration of certain management employees' salaries in June 2002 and
          certain increases in 2003;

     o    Senior management salaries incurred for the full year in 2003 versus a
          portion of the year in 2002 and

     o    Non-cash  expense  attributable to the intrinsic value of below-market
          grants of stock options to certain management  employees in return for
          a salary deferral in 2003.


                                       64


     o    An increase of $259,000 in  international  and domestic travel related
          expense incurred primarily by senior executives.

     o    Increased  legal and  auditor  fees  incurred in  connection  with the
          informal SEC inquiry.

     o    Fees  associated  with our new  auditor's  re-audit  of our  financial
          statements for the year ended December 31, 2002.

     o    Accrued severance-related costs attributable to the announced shutdown
          of our Alameda, California facility in mid-2004.


The loss from operations for 2003, at $19,715,000,  reflects a 59% increase over
the $12,427,000 loss reported for 2002.

Net interest  expense for 2003 increased by $4,766,000,  from $2,203,000 in 2002
to $6,969,000 in 2003. The change is primarily attributable to (in thousands):




                                                                  2003              2002            Change
                                                              ---------        ---------          ---------
                                                                                         
Interest on debt instruments                                  $     425        $     332          $     93

Non-cash expense composed of:
   Amortization and proportional write-off upon
     conversion of note and debenture discounts                   4,835            1,188             3,647
   Liquidated damages due to delayed registration of
     shares underlying convertible securities                       620              546                74
   Amortization and proportional write-off upon
     conversion of deferred offering costs                          997              210               787
   Expense attributable to warrants issued in
     conjunction with the Marr $10 million Promissory
     Note Agreement                                                 322                -               322
   Warrant liability mark-to-market adjustment (these
     warrants were exercised by Bristol during the third quarter of 2003 and the
     remaining  warrant  liability  was  written  off to  APIC  at the  time  of
     exercise.)
                                                                   (275)             (70)             (205)
   Expense attributable to dividends on mandatorily
     redeemable Series A preferred stock                             60                -                60
                                                               ---------        ---------          ---------
Total interest expense                                            6,984            2,206             4,778

Interest income                                                     (15)              (3)              (12)
                                                                ---------        ---------          ---------

Net interest expense                                            $ 6,969         $  2,203           $ 4,766
                                                                =========       ==========         ==========


Quarters ended March 31, 2004 and 2003

Revenues for the first quarter of 2004  increased 24% or $187,000,  to $971,000,
compared  with  $784,000 for the first  quarter of 2003.  Sales of the screening
tests to insurance  company  reference labs increased by $203,000 or nearly 50%.
Much of this increase is attributable to purchases made by our largest customer.
Domestic  test  sales  through  the  direct  diagnostic   channel,  as  well  as
international  test sales, were  insignificant  during the first quarter in both
2004 and 2003. Revenue from the sale of our supplemental tests decreased $22,000
or 45% during the first quarter of 2004 compared with the first quarter of 2003.

Of customers  accounting  individually  for more than 10% of our  revenues,  two
customers accounted for an aggregate of 57% and 49% of our first quarter revenue
in 2004 and 2003, respectively.

Gross margin decreased to a loss of $1,009,000  (-104% of first quarter sales in
2004)  from a loss of  $631,000  (-81% of first  quarter  sales in 2003).  As an
FDA-regulated manufacturing entity with two geographically diverse locations, we
incur a significant level of relatively fixed costs, including personnel-related
costs, to operate and maintain both manufacturing  facilities in compliance with
Good  Manufacturing  Practices.  When we incur  those costs  without  sufficient
revenues  from the sale of our  products  to offset  them,  we  report  negative
margins.  Our Maryland facility ceased its primary production  activities during
the first quarter 2004 while it was being  modified to produce the EIA screening
test kits currently  manufactured in California.  We have continued to incur the
relatively  fixed costs  described  above  during this  modification,  which has
negatively affected our gross margin. The modifications to the Maryland facility
are expected to be substantially completed during the second quarter of 2004.


                                       65


Included in cost of sales,  a component  of gross  margin,  is royalty  expense,
which  we  pay  on  the  sale  of all  of  our  products.  Royalty  expense  was
approximately  $172,000  and  $101,000  in the first  quarter  of 2004 and 2003,
respectively.  Our effective  royalty rate varies based on our product mix, with
the rate  being  higher on our EIA  screening  tests  than on our urine or serum
supplemental  tests.  Additionally,  certain of our license  agreements  contain
minimum royalty  provisions which, in 2004 and 2003, exceed amounts due based on
the contractual  percentage  rates. In both 2004 and 2003, one licensor accepted
shares of our common stock in satisfaction of discounted  amounts due for one or
more years in excess of the  percentage  royalty  rate.  The value of the common
stock issued in both periods was recorded as royalty expense.

R&D costs  increased  $227,000 or 72% to $541,000 for the first  quarter of 2004
from $314,000 for the first quarter of 2003.  Approximately half of the increase
is the result of additional  compensation and benefits expense for new personnel
involved in our rapid test development. The remaining increase is due to expense
associated  with  the  acquisition  of  specimens  and  product   prototypes  in
preparation for clinical trials to pursue our rapid test initiative.

Selling,  general and  administrative  costs decreased to $2,196,000  during the
first  quarter  of 2004 from  $4,009,000  during the first  quarter  of 2003,  a
decrease of $1,813,000 or 45%.  Sales and  marketing  expenses were  essentially
unchanged  with a decrease in  compensation  and  benefits  expenses  due to the
elimination  of our  direct  sales and  marketing  force in the second and third
quarters  of 2003  offsetting  an  increase in  marketing  consulting  expenses.
General and  administrative  expenses  decreased by approximately  $1,784,000 or
49%. The primary components of the decrease include the following:

o    a decrease  of  approximately  $2,485,000  in  primarily  non-cash  expense
     recorded  in  connection  with the  issuance  of  warrants  and  options to
     consultants and third party firms for various investor  relations and other
     projects, offset by

o    expense of approximately  $575,000, of which $225,000 is non-cash, in costs
     incurred as a result of a  Separation  Agreement  between the Company and a
     former executive;

o    an increase in legal and audit fees incurred in connection with an informal
     SEC inquiry;

o    an  accrual  for  severance-related  costs  attributable  to the  announced
     shutdown of our Alameda, California facility in mid-2004.

The loss from  operations  for the first three  months of 2004,  at  $3,746,000,
reflects a 24% decrease compared with the $4,954,000 loss reported for the first
three months of 2003.

Net  interest  expense  for the first  quarter  of 2004  decreased  to  $297,000
compared with $1,516,000 in the first quarter of 2003, a decrease of $1,219,000.
The decrease is primarily the result of the conversion of a significant  portion
of the  Company's  convertible  debt  during  the third  quarter of 2003 and the
accounting  treatment  applicable to the related discounts and deferred offering
costs.

Liquidity and Capital Resources

Financing Activities

In February  2002,  we entered into an  agreement  to issue up to $850,000  face
value of 12% secured convertible debentures. We issued one debenture in the face
amount of $425,000  concurrent with signing the agreement and a second debenture
in the face amount of $100,000 in May 2002. We also issued  warrants to purchase
up to 459,500  shares of our common stock in  conjunction  with the  convertible
debenture  agreement.  During the second quarter of 2002, the investor converted
principal of  approximately  $60,000 plus accrued  interest  attributable to the
February  debenture into 148,747 shares of restricted  common stock.  During the
first  quarter  of 2003,  the  investor  converted  the  remaining  $465,000  of
outstanding  principal plus accrued  interest and liquidated  damages  resulting
from delay in  registration  into 870,695 shares of registered  common stock. In
September 2003, the investor  exercised  warrants to purchase  456,667 shares of
our  common  stock  and we  received  proceeds  of  approximately  $37,000.  Our
registration  statement on Form S-2/A (No. 6)  registering  1,010,000  shares of
common stock for resale by the investor  pursuant to  conversion of the $525,000
face value of  debentures  issued  became  effective on February  14, 2003.  The
proceeds  from the  issuance  of the  debentures  and from the  exercise  of the
warrants were used to finance operations.

Subsequently,  beginning in May 2002, we negotiated  several new financings from
which,  through July 14, 2004,  we have raised  approximately  $31.8  million in
gross  proceeds.  The  following  table  summarizes  these  financings  by major
category and the subsequent table provides the details of these financings.


                                       66


                          SUMMARY OF RECENT FINANCINGS




                                                                               Total   Restricted Shares
                                                 Gross    Net Proceeds        Shares         Outstanding
       Financing Source                       Proceeds                        Issued
       --------------------------------      ---------   -------------      ---------  -----------------
                                                                            
       8% Convertible Notes                    $ 3,232         $ 2,594      46,084.3                    -
       Other Restart Financings                    750             730       2,720.3                    -
       Mercator 12% and 10% Debentures           4,550           3,650      37,529.5                    -
          (1)
       Marr 2003 Private Placements             12,500          11,900      28,333.3                    -
       May 2004 PIPE                             9,300           8,769      23,250.0
       July 2004 PIPE                            1,488           1,384       3,720.0              3,720.0
                                              --------       ---------    ----------   ------------------
         Total                                $ 31,820        $ 29,027     141,637.4              3,720.0
                                             =========       =========    ==========   ===================



- -----------------
(1)  At July 14, 2004,  the holders have  converted all but $60,000 of principal
     of the convertible debentures issued since September 2002. Based on current
     market prices, we estimate that we would be required to issue approximately
     0.2 million additional shares of our common stock if the holders elected to
     convert the remaining principal and accrued interest of their debentures at
     this  time.  The  holders  of  these  12%  convertible  debentures  claim a
     transaction  date  which we  dispute.  These  debentures  have not yet been
     converted  pending  resolution of the transaction  date dispute,  which may
     impact the  number of shares of our stock to which the  holder is  entitled
     upon conversion. See Legal Proceedings and Note 12 to Detail of Financings.


                                       67



                           DETAIL OF RECENT FINANCINGS





                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- ------------------------------      -----------   ----------   ----------    ------------    ---------      ---------------
                                                                                          
8% Convertible Notes                   Lesser of
Alpha Capital Aktiengesellshaft     (i) $3.00 or      $500                      5/24/02        $ 3.60         7,260.7/ $500
Stonestreet Limited Partnership      (ii) 70% of      $500                      5/24/02        $ 3.60         7,075.7/ $500
Filter International Ltd.            The average      $150                      5/24/02        $ 3.60         2,452.4/ $150
                                              of
Camden International Ltd.           The 3 lowest      $350                      5/24/02        $ 3.60         5,279.1/ $350
Domino International Ltd.             Trades for      $150                      5/24/02        $ 3.60         1,767.4/ $150
                                              30
Thunderbird Global Corporation              days      $ 75                      5/24/02        $ 3.60          1,083.1/ $75
BNC Bach International Ltd.            Preceding      $200                      5/24/02        $ 3.60         2,463.8/ $200
Excalibur Limited Partnership         conversion      $200                      5/24/02        $ 3.60         1,678.9/ $200
Standard Resources Ltd.                               $100                      5/24/02        $ 3.60         1,542.5/ $100
SDS Capital International Ltd.                        $300                      7/10/02       $ 10.20         4,189.8/ $300
Camden International Ltd.                             $100                      7/10/02       $ 10.20         1,707.9/ $100
Excalibur Limited Partnership                         $250                      7/24/02        $ 6.60         4,238.3/ $250
Stonestreet Limited Partnership                       $250                      8/21/02        $ 3.90         4,042.2/ $250
Alpha Capital Aktiengesellshaft                       $107                       5/9/03        $ 0.63         1,302.5/ $107
                                                    -------                                                   --------------
   Total 8% Convertible Notes                       $3,232        $2,594                                   46,084.3/ $3,232
                                                    ========     ========                                  =================

Other Restart Financings:

10% Convertible Note
BNC Bach International Ltd.           50% of the     $ 150       $ 150        5/14/02             $4.20       2,217.8/ $150
   (Note: on 7/14/02 the            average of 3                                              $10.80 on
   maturity date was extended             lowest                                               7/14/02;
   until 12/31/02; on December       closing bid                                               $1.92 on
   27, 2002, the maturity date        prices for                                              12/27/02;
   was extended until January            22 days                                               $1.80 on
   15, 2003; on January 15,            preceding                                               1/15/03;
   2003 the maturity date was         conversion                                               $1.50 on
   extended until March 17,                                                                    3/17/03;
   2003, on March 17, 2003 the                                                                 $0.99 on
   maturity date was extended                                                                    4/2/03
   until April 4, 2003; on                                                                     $0.75 on
   April 2, 2003, the maturity                                                                  4/30/03
   date was  extended until May
   5, 2003; on April 30, 2003,
   the maturity date was
   subsequently extended until
   May 10, 2004)(5)

8% Convertible Debentures
Su So                                 80% of the     $ 100          $ 90        6/17/02         $4.20        36.7 (4)/ $100
                                    lower of the
                                         average
                                     closing bid
                                    or trade
                                    price for
                                   the 5 days
                                       preceding
                                     conversion,
                                    but not less
                                      than $3.00




                                                               68






                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- ------------------------------      -----------   ----------   ----------    ------------    ---------      ---------------
                                                                                          
Jason Arasheben                       70% of the     $ 100          $ 90        7/03/02         $8.10        15.8 (4)/ $100
                                    lower of the
                                         average
                                     closing bid
                                    or trade
                                    price for
                                   the 5 days
                                       preceding
                                     conversion,
                                    but not less
                                      than $3.00

PIPE at $1.50 per share
Careen Ltd.                            $1.50 per     $ 200         $ 200      8/28/02          $ 4.80          225.0/ N/A
Caledonia Corporate Group                  Share     $ 200         $ 200      8/28/02          $ 4.80          225.0/ N/A
    Limited                                          -----         -----                       -------         ------------

    Total Other Restart
      Financings                                     $ 750         $ 730                                      2,720.3/ $350
                                                     =====         =====                                      ==============
 Mercator 12% and 10% Debentures
               (2)

12% Convertible Debentures
Mercator Momentum Fund, L.P.          85% of the     $ 550      $345 (6)        9/12/02         $3.00       4,866.4(4)/$550
($2,000 total commitment)             average of
                                    the 3 lowest
Mercator assigned its rights to:         trading
   Alpha Capital AG                   prices for       250           250        7/24/03        $0.115         2,673.8/ $250
   Gamma Opportunity Capital              the 20       250           250        7/24/03        $0.115         2,685.6/ $250
     Partners, LP                   trading days
   Goldplate Investment Partners       preceding       250           250        7/24/03        $0.115         2,673.8/ $250
   Marr Technologies, B.V. (11)       conversion       570           570         9/1/03        $0.498         5,181.8/ $570
                                             (8)     1,870         1,665
   Dr. Khalid Ahmed                                     50            50        10/2/03        $1.310             84.6/ $50
   Roger Suyama                                         20            20        10/2/03        $1.310             33.8/ $20
   Logisticorp, Inc.                                    20            20        10/2/03        $1.310                     -
   Southwest Resource                                                 40           (12)        $1.310
     Preservation Inc.                                  40        $1,795        10/2/03                                   -
                                                    -------       ------                                   ----------------
                                                    $2,000                         (12)                    18,199.8/ $1,940
                                                    -------                                                -----------------

Mercator Momentum Fund, L.P.          80% of the      $300          $260       10/22/02         $3.90         0/ $300 (7)
                                      average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not less
                                      than $1.50

Mercator Momentum Fund L.P.  (10)     70% of the      $300          $245        4/29/03        $0.825       3,475.7/ $300
                                      average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $1.20




                                                      69







                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- ------------------------------      -----------   ----------   ----------    ------------    ---------      ---------------
                                                                                          
Mercator warrant                       $3.00 per        $0            $0       10/22/02         $3.90                   0
                                           share
10% Convertible Debentures
Mercator Focus Fund, L.P. (10)        80% of the    $1,000          $510        1/14/03         $1.92     7,941.1/ $1,000
                                      average of                     (6)
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $3.00

Mercator   Momentum  Fund,   L.P.     80% of the      $450          $440        1/30/03         $1.86       2,857.7/ $450
(10)                                  average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $3.00
Mercator Focus Fund, L.P. (10)                        $400                      3/13/03         $1.47       3,428.9/ $400
Mercator Momentum Fund III, L.P.      65% of the       100                                                  1,626.3/ $100
                                      average of      $500          $400                                    5,055.2/ $500
                                    the 3 lowest      ----          ----
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $2.10
   Total Mercator Debentures                        $4,550        $3,650                                   37,529.5/ $4,490
                                                    ======        ======                                   ================
Marr Private Placements

     PIPE at $0.30 per share
Marr Technologies B.V. (9)(11)        $0.30 per       $2,500     $2,300        8/1/03          $0.152             8,333.3
                                          share

     PIPE at $0.50 per share
Marr Technologies B.V. (9)(11)        $0.50 per      $10,000     $9,600        9/1/03          $0.498            20,000.0
                                          share      --------    ------
 Total Marr Private Placements                       $12,500    $11,900                                          28,333.3
                                                     =======    =======




                                       70






                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- ------------------------------      -----------   ----------   ----------    ------------    ---------      ---------------
                                                                                          
May 2004 Private Placement
 PIPE at $0.40 per share (13)            Shares
    SF Capital Partners LP            Issued at       $4,000        $3,720       5/28/04        $0.50              10,000.0
    Marr Technologies BV              $0.40 per        3,000         2,910       5/28/04        $0.50               7,500.0
    Proximity Fund LP                    share;          500           465       5/28/04        $0.50               1,250.0
    Proximity Partners LP                5 year          500           465       5/28/04        $0.50               1,250.0
    MTB Small Cap Growth Fund        warrant at          500           465       5/28/04        $0.50               1,250.0
                                          $0.50
    MTB Multi Cap Growth Fund         per share          500           465       5/28/04        $0.50               1,250.0
    Bridges & PIPES LLC                                  300           279       5/28/04        $0.50                 750.0
                                                      ------       -------                      -----                 ------
       Total May 2004 PIPE                            $9,300       $ 8,769                                         23,250.0
                                                      ======       =======

July 2004 Private Placement
 PIPE at $0.40 per share (13)            Shares
    Sunrise Equity Partners, L.P.     issued at        $ 750          $698        7/9/04       $0.615               1,875.0
    Amnon Mandelbaum                  $0.40 per           80            74        7/9/04       $0.615                 200.0
    David I. Goodfriend                share; 5            8             7        7/9/04       $0.615                  20.0
                                           year
    TCMP3 Partners                   warrant at          150           140        7/9/04       $0.615                 375.0
    United Capital Partners, LLC      $0.50 per
                                          share          500           465        7/9/04       $0.615               1,250.0
                                                     -------       -------                     -------              --------
       Total July 2004 PIPE                          $ 1,488       $ 1,384                                          3,720.0
                                                     =======       =======


- ---------------

(1)  The 8% Convertible  Notes, the Other Restart  Financings,  the Mercator 12%
     and 10% Debentures and warrants,  and ther Common Stock  underlying  MTBV's
     2003  PIPE's,  the May 2004 and the  July  2004  PIPEs  were  issued  under
     exemptions  provided by Regulation S or Regulation D. With the exception of
     Marr  Technologies  B.V., which is an affiliate of the Company based on its
     August and September 2003 PIPE  investments  and  participation  in the May
     2004 PIPE, none of the entities listed above is or has been an affiliate of
     the Company.  Other than Marr  Technologies  B.V.  and SF Capital  Partners
     Ltd.,  all of the listed  investors  were subject to ownership  limitations
     restricting  their  ownership  of our stock to a  maximum  of 4.9% or 9.9%,
     depending on the specific agreement.

(2)  At July 14, 2004,  the holders have  converted all but $60,000 of principal
     of the convertible debentures issued since September 2002. Based on current
     market prices, we estimate that we would be required to issue approximately
     0.2 million additional shares of our common stock if the holders elected to
     convert the remaining principal and accrued interest of their debentures at
     this time. See also Note 12.

(3)  On  July  18,  2003,  the  registration  statement  for  52,500,000  shares
     underlying  the 8%  Convertible  Notes,  the Other Restart  Financings  and
     $1,300,000  of the  Mercator  12% and  10%  Convertible  Debentures  became
     effective.  As a result  of a  decline  in the  market  price of our  stock
     subsequent to the effective date of the July 2003  registration  statement,
     the number of shares  registered  was  insufficient  to permit the complete
     conversion of the notes and debentures into registered  shares.  The shares
     underlying  certain of the convertible  securities have become eligible for
     resale under Rule 144, and certain  investors  have availed  themselves  of
     that   eligibility  to  convert   restricted   shares  issued  pursuant  to
     conversions  into  free-trading  shares.  On July 8, 2004, the registration
     statement for 83,056,050 shares underlying Marr Private Placements, the May
     2004  PIPE,   certain  of  the   Mercator   12%   Convertible   Debentures,
     approximately  12.2 million  additional  shares  attributable to financings
     included in the July 2003  registration  statement  and  approximately  3.3
     million shares issued or issuable to vendors  consultants and other parties
     who  agreed to accept  shares of our  Common  Stock in lieu of cash  became
     effective  (File No.  333-116491). Investors in our July 2004 PIPE hold 3.7
     million  restricted  shares of our Common  Stock.  We are  registering  the
     shares of Common Stock  underlying the July 2004 PIPE on a cost-free  basis
     to the  holders  of said  shares  of  Common  Stock  in  this  registration
     statement.

(4)  Includes fee shares.

(5)  On April 30, 2003,  when the market price of the common stock was $0.75, we
     and BNC Bach amended the conversion  price to eliminate a conversion  price
     ceiling of $1.50 per share and to increase the discount  applicable  to the
     conversion  price from 40% to 50%. In return for this  modification  of the
     conversion  price, BNC Bach agreed to extend the maturity of the note until
     May 10, 2004. BNC Bach subsequently converted the outstanding principal and
     accrued interest into shares of our common stock.


                                       71


(6)  Reflects a 10% cash commitment fee on the entire $2 million commitment paid
     to The Mercator  Group less  additional  fees and  expenses.  We registered
     shares  underlying  $1,300,000 of the total  $2,000,000  commitment in July
     2003 and the shares  underlying the final  $700,000 of this  commitment are
     included in this registration statement.

(7)  In  conjunction  with  the  issuance  of the  $1  million  10%  convertible
     debenture to Mercator  Focus Fund,  L.P., we used the proceeds to repay the
     $0.3 million outstanding principal balance of the 12% convertible debenture
     previously  issued to Mercator  Momentum Fund, L.P. plus accrued  interest.
     The balance of costs incurred represents transactional and legal fees.

(8)  On March 31, 2003, when the market price of our Common Stock was $0.885, we
     amended the conversion price to eliminate a conversion price floor of $1.50
     per share in  return  for an  extension  of time in which to  register  the
     shares of common stock underlying the various Mercator financings.

(9)  The  Securities  Purchase  Agreements  for both  transactions  between  the
     Company  and Marr  Technologies  B.V.  require  that we  provide  cost-free
     registration rights to Marr; however, Marr is subject to a one-year lock-up
     provision  following  the  transaction  date  with  respect  to the  shares
     purchased.

(10) On January 14,  2004,  when the market price of our common stock was $0.60,
     we extended the maturity  date of the following  debentures  until July 14,
     2004:

     o    10%  Convertible  Debenture  dated January 14, 2003 issued to Mercator
          Focus Fund, LP

     o    10%  Convertible  Debenture  dated January 30, 2003 issued to Mercator
          Momentum Fund, LP

     o    10%  Convertible  Debentures  dated  March 13, 2003 issued to Mercator
          Focus Fund, and

     o    12%  Convertible  Debenture  dated  April 29,  2003 issued to Mercator
          Momentum Fund, LP.

In return for the  extension  of the  maturity  dates,  we have agreed to pay an
additional  extension fee equal to 2% of the outstanding  principal  balance per
month  until the  earlier  of the  extended  maturity  date or  conversion.  The
extension  fee is  payable  1% in cash and 1% in  shares  of our  common  stock.
Additionally,  we agreed to file a registration  statement  including the shares
potentially  applicable to the conversion of the outstanding  debenture balances
by no later than April 29, 2004. On April 23, 2004, when the market price of our
Common  Stock was $0.625,  we and the various  Mercator  Funds  agreed to extend
until May 14, 2004 the period for filing the  registration  statement  including
the shares issued or potentially issuable upon conversion.  On May 7, 2004, when
the market  price of our common  stock was $0.48 per share,  we and the  various
Mercator  Funds  agreed  to  further  extend  from  May 14,  2004  until 21 days
following  the closing of a private  placement  of equity  financing of at least
$5,000,000,  but in any case to no later than June 30, 2004, the period in which
we are required to file a registration  statement including shares of our common
stock issued or potentially issuable upon conversion.  Such shares were included
in our June 15, 2004  registration  statement,  which was declared  effective on
July 8, 2004. All of the subject convertible  debentures were converted prior to
the extended maturity date.

(11) On January 23, 2004,  when the market price of our common stock was $0.695,
     we and Marr agreed to extend the registration rights period attributable to
     5,181,818  shares of our common  stock  issued in  conjunction  with Marr's
     conversion of $570,000  principal  amount of the Company's 12%  Convertible
     Debentures  from  February  27, 2004 to April 29,  2004.  In return for the
     extension,  we agreed to  include  in our next  registration  statement  an
     aggregate of  28,333,333  shares of our common  stock  purchased by Marr in
     PIPE  transactions in the third quarter of 2003. On April 23 2004, when the
     market price of the Common Stock was $0.625, we MTBV agreed to extend until
     May 14, 2004 the period for filing the registration statement including the
     shares issued to MTBV upon conversion of the 12% convertible  debenture and
     in the 2003 PIPE transactions.  On May 7 2004, when the market price of our
     common  stock was $0.48 per share,  MTBV agreed to further  extend from May
     14,  2004 until 21 days  following  the closing of a private  placement  of
     equity financing of at least  $5,000,000,  but in any case to no later than
     June 30, 2004,  the period in which we are required to file a  registration
     statement  including  shares  of our  common  stock  issued  to  MTBV  upon
     conversion  of  the  12%  convertible   debenture  and  in  the  2003  PIPE
     transactions.  Such shares were included in our June 15, 2004  registration
     statement, which was declared effective on July 8, 2004.

(12) The holder  claims an earlier  transaction  date,  which we  dispute.  This
     debenture has not yet been converted Assuming  immediate  conversion at the
     earlier,  disputed  transaction  date, the number of shares of common stock
     issuable  to  Logisticorp  and  Southwest  Resource  Preservation  would be
     213,903 and 427,807, respectively.  While not necessarily agreeing to issue
     the  number  of  shares  calculated  as  issuable  based  on  the  disputed
     transaction  date, we  registered  that number of shares of Common Stock in
     our June 15, 2004 registration statement pending resolution of the dispute.
     The ultimate  resolution of the transaction  date dispute may determine the
     number  of  shares  of our  stock to which  the  holder  is  entitled  upon
     conversion. See Legal Proceedings.

(13) The shares issued  pursuant to the May 2004 PIPE and the July 2004 PIPE and
     the  related  warrants  for each have an  anti-dilution  feature  that will
     require  us to issue  additional  shares to the PIPE  investors  and modify
     their warrants if we subsequently  issue  additional  equity at a per share
     price of less  than  $0.40  for a period  of one year  from the  respective
     closing  dates,  except  under the  provisions  of  previously  outstanding
     convertible debt, option plans, or option or warrant agreements.


                                       72



On November  13,  2003,  when the market price of our common stock was $0.88 per
share, the Company and Marr, its largest stockholder,  entered into an agreement
in which Marr agreed to provide us up to an aggregate of $10,000,000  (the "Marr
Credit  Facility")  pursuant  to  promissory  notes  we may  issue to Marr on an
as-needed  basis (the "Notes").  Each Note would bear interest at the rate of 5%
per annum and have a 12-month  term.  The Marr  Credit  Facility  was  available
during the period beginning on February 28, 2004 and ending on May 31, 2004. The
aggregate  amount  available  under the Marr Credit  Facility is  proportionally
reduced by the amount of any equity  financing we obtain  during the term of the
Marr Credit Facility. Marr has participation rights in any such equity financing
on the same terms as the other investors.  The Marr Credit Facility provided for
earlier  termination as of March 31, 2004, if we failed to have our common stock
listed on an established stock exchange by that date. Moreover, upon the failure
to obtain such stock exchange  listing,  any outstanding  Notes would be due and
payable on April 30, 2004. As  consideration  for the Marr Credit  Facility,  we
issued to a party designated by Marr a warrant to purchase 375,000 shares of its
common stock at an exercise price of $0.80 per share. The warrant is immediately
exercisable and expires two years after issuance on November 12, 2005.

On March 19,  2004,  when the market  price of our  common  stock was $0.575 per
share,  we and Marr amended the Marr Credit  Facility to increase the  aggregate
amount  available under the Marr Credit Facility to $15,000,000 and to eliminate
the  termination  provision  upon  failure to have our common stock listed on an
established  stock exchange by March 31, 2004. As additional  consideration  for
the amendment of the Marr Credit  Facility,  we issued to a party  designated by
Marr an additional  warrant to purchase 400,000 shares of our common stock at an
exercise price of $0.46 per share.  This warrant is immediately  exercisable and
expires two years from its date of issuance on March 18, 2006.

On May 26, 2004,  when the market price of our Common Stock was $0.46 per share,
we and MTBV again amended the Marr Credit Facility whereby MTBV has committed to
purchase up to $5,000,000 of Promissory Notes that we may issue through December
31, 2004. Any Notes issued pursuant to this second  amendment will bear interest
at 9% per annum and will have a maturity  date of May 31, 2005.  The  $5,000,000
amount  available  under the amended Marr Credit Facility will be reduced by the
amount of any equity  financing we obtain after the May 26, 2004  effective date
of the second  amendment  and through the December 31, 2004  commitment  period,
exclusive of the proceeds from the May 2004 Private Placement.  Accordingly, the
commitment  has been  reduced to  approximately  $3.6 million as a result of the
closing of the July 2004 PIPE. At July 14, 2004, the Company has issued no Notes
under the Marr  Credit  Facility.  As  consideration  for the  extension  of the
commitment period reflected in the second amendment of the Marr Credit Facility,
we issued to MTBV a warrant to purchase 500,000 shares of our Common Stock at an
exercise price of $0.40 per share.  This warrant is immediately  exercisable and
expires  two  years  from its  date of  issuance  on May 26,  2006.  The  shares
underlying  these three warrants were included in our June 15, 2004 registration
statement.


Warrants, Options and Stock Grants

Since January 2002, we have entered into various  contracts and agreements  with
consultants  who have agreed to accept payment for their services in the form of
warrants,  options and/or stock grants.  We have obtained various services under
these arrangements,  including legal,  financial,  business advisory,  and other
services  including  business  introductions  and  arrangements  with respect to
potential  domestic and  international  product placement and the development of
potentially  synergistic  relationships with appropriate public service or other
governmental and  non-governmental  organizations.  We have generally issued the
warrants at a discount to the  then-current  market price and has registered the
shares   underlying  the  warrants,   options  and  stock  grants  on  Form  S-8
Registration  Statements for resale by the  consultants.  We have, since January
2002, issued approximately 9.6 million shares of our common stock as a result of
warrant  or  option  exercises  and stock  grants  related  to these  consulting
agreements, of which approximately 7.9 million shares were issued during 2003.

In May 2002,  Calypte issued warrants and options to purchase  633,333 shares of
its common stock under agreements with consultants to perform legal,  financial,
business  advisory  and  other  services  associated  with  the  restart  of its
operations.  The warrants were issued at $0.45 per share on May 9, 2002 when the
market price of our common stock was $0.90 per share.  The option was granted at
$0.90 per share on May 10,  2002,  when the market price of our common stock was
$0.90 per share. All of the warrant and option grants were  non-forfeitable  and
fully-vested  at the date of  issuance  and were  registered  for  resale by the
consultants  under Form S-8.  The  consultants  exercised  all the  warrants and
options and Calypte issued 633,333 shares and received proceeds of $292,500. All
but one of the consulting  agreements  discussed  above expired in August and we
have entered into new agreements


                                       73


for  legal,   financial,   business  advisory,   and  other  services  including
introductions   and  arrangements   with  respect  to  potential   domestic  and
international product development of synergistic  relationships with appropriate
public  service  organizations.  In November 2002,  Calypte  issued  warrants to
purchase  950,000  shares of our common stock and stock grants for 70,000 shares
of our stock to consultants under the terms of these new agreements. The Company
issued  350,000  warrants at an exercise price of $1.50 per share on November 1,
2002, when the market price of our stock was $4.20 per share. The Company issued
an  additional  600,000  warrants at an exercise  price of $1.50 on November 20,
2002,  when the market price of our common  stock was $2.70.  All of the warrant
grants were  non-forfeitable  and  fully-vested at the date of issuance and were
registered for resale by the  consultants  under Form S-8. By February 2003, the
consultants  had  exercised  all the  warrants  and  the  Company  had  received
aggregate  proceeds of $1.425 million.  The Company issued 986,667 shares of its
common stock  pursuant to the  exercises of the November  2002 warrant and stock
grants. In January and February 2003, the Company entered into new contracts and
extended  certain other contracts with existing  consultants to perform services
as described above. On February 14, 2003, when the market price of the Company's
stock was $2.01, the Company issued warrants  exercisable at $1.50 per share and
stock  grants  for an  aggregate  of  975,216  shares  of its  common  stock  as
compensation  for  these  services.   The  warrants  were   non-cancelable   and
fully-vested  at the date of issuance.  By May 31,  2003,  the  consultants  had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of $0.8 million.

During  March 2003,  when the market  price of the  Company's  stock ranged from
$1.32 to $1.50 per share,  the Company issued warrants  exercisable at $0.75 per
share and stock  grants  for an  aggregate  of  1,350,400  as  compensation  for
services under new or extended  contracts.  The warrants were non-cancelable and
fully-vested  at the date of issuance.  By May 31,  2003,  the  consultants  had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of approximately $0.9 million.

In April 2003, when the price of the Company's stock ranged from $0.81 to $0.885
per share,  the Company  entered into  additional  contracts,  extended  certain
contracts,  and modified  certain other contracts with existing  consultants who
agreed to settle a portion of the  outstanding  balance due for  services  under
their  contracts in stock.  The Company  issued  warrants at $0.75 per share and
stock  grants  for an  aggregate  of  1,490,600  shares of its  common  stock as
compensation or settlement for these services.  The warrants were non-cancelable
and  fully-vested at the date of issuance.  By May 31, 2003, the consultants had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of approximately $0.1 million.

In May 2003,  when the price of the Company's stock ranged from $0.552 to $0.576
per share,  the Company  again  entered  into new  contracts,  extended  certain
contracts,  and modified  certain other contracts with existing  consultants who
agreed to settle a portion of the  outstanding  balance due for  services  under
their  contracts in shares of stock.  The Company  issued  warrants at $0.30 per
share and stock grants for an aggregate of 2,080,305  shares of its common stock
as   compensation   or  settlement  for  these   services.   The  warrants  were
non-cancelable and fully-vested at the date of issuance.  By September 30, 2003,
the consultants had exercised  warrants to purchase all of the shares granted to
them and the Company had received proceeds of approximately $0.5 million.

In July 2003,  when the price of the Company's  stock ranged from $0.11 to $0.30
per share, the Company extended a contract for consulting and other services and
granted the consultant a warrant to purchase  722,500 shares of its common stock
at 50% of the closing  market price on the date of any exercise as  compensation
under the  contract.  The  warrant was  granted as  fully-vested  and expired on
September  30, 2003.  By September 30, 2003,  the  consultant  had exercised the
entire  warrant at prices  ranging from $0.08 to $0.61 per share and the Company
had received proceeds of approximately $0.4 million.  Also during July 2003, the
Company issued stock grants to consultants for an aggregate of 356,344 shares of
its common stock as compensation under their contracts.

On August 20, 2003,  when the price of the Company's  stock was $0.18 per share,
the Company issued consulting contracts to two new consultants pursuant to which
it issued warrants for 100,000 shares each,  exercisable at $0.18 per share. The
warrants  were  non-cancelable  and  fully-vested  at the date of  issuance.  At
December 31, 2003, the consultants had exercised none of the warrants.

In September  2003,  when the price of the Company's  stock ranged from $0.50 to
$1.80 per share, the Company issued an aggregate of 800,000 shares of its common
stock to  consultants  and other service  providers who agreed to take shares of
stock in lieu of cash as compensation under their contracts.

In October and November 2003,  when the price of the Company's stock ranged from
$0.53 to $1.65 per share,  the Company  issued an aggregate of 125,000 shares of
its common stock to consultants  and other service  providers who agreed to take
shares of stock in lieu of cash as compensation under their contracts.


                                       74


In February 2004, when the price of the Company's stock was $0.67 per share, the
Company issued 500,000 shares of its common stock to a consultant who had agreed
to accept  shares of stock as a portion of its  compensation  under a consulting
agreement.  The Company issued  approximately  67,000  additional  shares of its
common stock during the first  quarter of 2004 to another  consultant  under the
terms of a long-term consulting agreement.

In May 2004,  when the price of the  Company's  stock was $0.465 per share,  the
Company  issued  warrants to purchase  150,000  shares of its common stock at an
exercise  price of $0.50 as a portion  of the  compensation  under a  consulting
contract.  The warrants were exercisable  immediately and remain so for a period
of five years.

To conserve cash and to obtain goods and  services,  the Company may continue to
issue  options and warrants at discounts to market or issue direct stock grants.
In the event that the Company  issues  additional  options and  warrants,  it is
anticipated that the securities will contain cost-free registration rights which
will be granted to holders of the  options and  warrants,  and that there may be
dilution to the Company's existing stockholders.


Summary of Financing Activities

To  successfully  implement our business plan, we must obtain  sustainable  cash
flow and  profitability.  Since  December  31,  2003,  we have  entered into new
financing  arrangements  that  management  believes  will be adequate to sustain
operations  at expected  levels  through 2004.  During 2004,  we have  completed
private placements of our common stock with 12 accredited investors and received
net proceeds of  approximately  $10.2 million.  Additionally,  under the amended
terms of the Marr  Credit  Facility  between  us and Marr  Technologies  BV, our
largest  stockholder  and a  participant  in one of the private  placements,  we
currently  have access to an  additional  $3.6  million  from the issuance of 9%
promissory  notes that we may issue  through  December  31, 2004.  If,  however,
sufficient funds are not available to fund our operations in 2005 or beyond,  we
may need to arrange additional  financing or make other arrangements.  There can
be no  assurance  that  additional  financing  would be  available,  or it if is
available,  that it would be on  acceptable  terms.  Our  future  liquidity  and
capital  requirements  will depend on  numerous  factors,  including  successful
completion of the development of our new rapid tests, acquisition and protection
of intellectual  property rights, costs of developing our new products,  ability
to transfer technology,  set up manufacturing and obtain regulatory approvals of
our new  rapid  tests,  market  acceptance  of all our  products,  existence  of
competing  products in our current and anticipated  markets,  actions by the FDA
and other  international  regulatory bodies, and the ability to raise additional
capital in a timely manner.

Our  longer-term  liquidity  and capital  requirements  are dependent on factors
similar to those  which  impact  our  current  liquidity  and  capital  resource
considerations  and which will be  critical in  validating  our  business  model
during  2004.  Consequently,  we cannot  predict  the  adequacy  of our  capital
resources on a long-term  basis.  There can be no assurance that we will achieve
or sustain  profitability  or positive  cash flows in the future.  In  addition,
there can be no  assurance  that  subsequent  additional  financings,  if and as
necessary,  would  be  available  to us on a  timely  basis,  or  that  if it is
available,  that it  would  be on  acceptable  terms,  if at all.  The  terms of
additional   financing   could  involve  a  change  of  control  and/or  require
stockholder approval, or could require us to obtain waivers of certain covenants
that are  contained  in  existing  agreements.  We would or might be required to
consider strategic opportunities,  such as merger, consolidation,  sale or other
comparable transaction,  to sustain our operations. We do not currently have any
agreements  in place with  respect to any such new  strategic  opportunity,  and
there can be no assurance that any such opportunities will be available to us on
acceptable  terms, or at all. If additional  financing is not available when and
if required or is not available on acceptable terms, or we are unable to arrange
a suitable strategic  opportunity,  we will be in significant financial jeopardy
and we may be unable to continue our operations at current levels, or at all.

                             DESCRIPTION OF PROPERTY

Until the  expiration  of the lease on June 30,  2004,  we leased  approximately
20,000  square  feet of office,  research  and  manufacturing  space in Alameda,
California.  In  conjunction  with  the  consolidation  of all  of our  domestic
manufacturing  operations at our Rockville,  Maryland location,  we vacated this
space prior to June 30, 2004.  On May 7, 2004, we signed a three year lease that
commenced on June 18, 2004 for  approximately  4,400 square feet of office space
in Pleasanton, California that now houses our corporate headquarters.


                                       75


We lease two manufacturing  sites in Rockville,  Maryland,  a 26,000 square foot
manufacturing,  research  and  office  site and a 3,000  square  foot site which
houses our BSL-3 virus  laboratory.  Our lease on the virus lab site  expires in
October 2006 and our lease on the larger site expires in February 2009.

We believe  that the  facilities  described  above are  adequate for our current
requirements. We are currently evaluating our requirements for our developmental
stage rapid test products.


                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

In September  2001,  the Company issued a $400,000 8.5%  Promissory  Note to the
parent company of its  then-largest  stockholder.  The Company  renegotiated the
note during 2001, 2002 and subsequently in 2003. This note was repaid in 2003.

In connection with Marr Technologies BV's aggregate $12.5 million  investment in
the Common Stock during 2003, the Company  signed a Memorandum of  Understanding
with Marr Technologies  Limited, an affiliate of MTBV, to create a joint venture
in China to market the Company's current and future products.  Additionally, the
Nominating  Committee of the  Company's  Board agreed to grant MTBV the right to
appoint  two  mutually-agreeable  representatives  to the  Company's  Board at a
mutually-agreeable future date.

In November 2003, the joint venture, Beijing Calypte Biomedical Technology Ltd.,
was  formed,  with the  Company  owning a 51%  interest  in the  entity and Marr
Technologies Limited holding a 49% interest.  In April 2004, upon the nomination
by MTBV and the  recommendation  of the Nominating  Committee of the Board,  the
Company's Board appointed Maxim A. Soulimov as a member of the Board.


            MARKET FOR COMMON STOCK AND RELATED STOCKHOLDER MATTERS

Stock split

Our Common Stock  commenced  trading on the Nasdaq  SmallCap  Market on July 26,
1996, the time of our Initial  Public  Offering,  under the symbol  "CALY".  Our
Company's  stock was removed from listing on the Nasdaq Small Cap Market on July
13, 2001 as a result of our  failure to meet the  market's  listing  maintenance
requirements.  Beginning  on July 13,  2001 and  until May 28,  2003,  our stock
traded on the Over the Counter  Bulletin Board under the symbol  "CALY".  On May
20, 2003,  our  stockholders  approved a 1:30 reverse stock split,  which became
effective on May 28, 2003.  Since May 28, 2003, our stock has traded on the Over
the Counter  Bulletin Board under the symbol "CYPT".  At the time of the reverse
split, the stated par value of our common stock was changed to $0.03 from $0.001
per share.  The number of our authorized  shares of common stock remained at 800
million. High and low quotations reported by the Over the Counter Bulletin Board
during  the  periods  indicated  are  shown  below.   These  quotations  reflect
inter-dealer prices, without retail mark-ups,  mark-downs or commissions and may
not represent  actual  transactions.  All share prices reported in this document
have been restated to reflect the reverse stock split.


Fiscal Year  (reflects stock split)            Quarter        High      Low
- ----------------------------------           ---------   ---------  --------
2004                                               2nd   $    0.67   $  0.38
2004                                               1st        0.90      0.35

2003                                               4th        1.74      0.44
2003                                               3rd        1.80      0.11
2003                                               2nd        1.05      0.25
2003                                               1st        3.45      0.75

2002                                               4th        4.80      1.50
2002                                               3rd       12.90      2.40
2002                                               2nd        8.70      0.30
2002                                               1st        8.10      5.10


                                       76


On May 3, 2004,  the record  date for our 2004 Annual  Meeting of  Stockholders,
there were  approximately 450 holders of record of our common stock. The closing
price of our common stock on July 14, 2004 was $0.51 We have never paid any cash
dividends,  and our Board of Directors does not anticipate paying cash dividends
in the  foreseeable  future.  We intend to retain any future earnings to provide
funds for the operation and expansion of our business.

Description of Capital Stock

Our authorized  capital stock consists of 800 million shares of Common Stock and
five  million  shares of preferred  stock.  The  following  summaries of certain
provisions of the Common Stock and preferred stock do not purport to be complete
and are subject to, and  qualified in their  entirety by the  provisions  of our
Certificate of Incorporation, as amended.

Common Stock. At July 14, 2004,  there were  168,027,514  shares of Common Stock
outstanding,   which  were  held  of  record  by  approximately  450  registered
stockholders and approximately  16,000 additional  holders who hold their shares
in street name in brokerage  accounts.  The holders of Common Stock are entitled
to one  vote per  share on all  matters  to be voted  upon by the  stockholders.
Subject to  preferences  that may be  applicable  to any  outstanding  preferred
stock,  the  holders  of Common  Stock are  entitled  to  receive  ratably  such
dividends,  if any,  as may be  declared  from  time to  time  by the  Board  of
Directors  out of funds legally  available  for that purpose.  In the event of a
liquidation,  dissolution  or winding up of the  Company,  the holders of Common
Stock are entitled to share  ratably in all assets  remaining  after  payment of
liabilities,  subject to prior  distribution  rights of preferred stock, if any,
then  outstanding.  The Common Stock has no preemptive  or conversion  rights or
other  subscription  rights.  There are no redemption or sinking fund provisions
applicable to the Common Stock.

Preferred Stock. The Board of Directors has the authority, without action by the
stockholders,  to designate and issue  preferred stock in one or more series and
to designate the rights,  preferences and privileges of each series,  any or all
of which may be greater than the rights of the common stock.  It is not possible
to state the actual effect of the issuance of any shares of preferred stock upon
the  rights  of  holders  of the  common  stock  until  the  Board of  Directors
determines the specific rights of the holders of such preferred stock.  However,
the effects  might  include,  among other things,  restricting  dividends on the
Common  Stock,  diluting the voting  power of the Common  Stock,  impairing  the
liquidation  rights of the Common Stock and  delaying or  preventing a change in
control of the Company without further action by the stockholders.

Warrants.  As of  July  14,  2004,  we  had  outstanding  warrants  to  purchase
13,490,210 shares of Common Stock, at a weighted average exercise price of $0.75
per share. Such warrants expire on various dates, the latest of which is July 9,
2009.  Included  in the above  number are the  following  warrants  for which an
aggregate of 2,752,800 underlying shares are being included in this registration
statement:

o    On July 9, 2004, we granted the investors in our July 2004 PIPE immediately
     exercisable   warrants  to  purchase  2,604,000  shares  of  Common  Stock,
     exercisable  at $0.50  per  share at any time up to and  including  July 9,
     2009. These warrants also have an anti-dilution  feature should the Company
     issue additional equity in a financing  transaction at a per share price of
     less than  $0.40 per  share  for a period  of one year  following  the PIPE
     transaction.  Additionally,  we granted  another party warrants to purchase
     148,800  shares as fees for services  rendered in connection  with the PIPE
     financing.  These  warrants  have the same  terms  as those  issued  to the
     investors, with the exception of the anti-dilution feature.

Stockholders  Rights Plan. On December 15, 1998, our Board of Directors declared
a dividend distribution of one preferred share purchase right ("Right") for each
outstanding  share of common stock of the  Company.  The dividend was payable to
the  stockholders  of record on  January  5, 1999 with  respect to each share of
common stock issued thereafter until a subsequent "distribution date" defined in
a Rights  Agreement  and, in certain  circumstances,  with  respect to shares of
common  stock  issued  after the  Distribution  Date.  The Rights  have  certain
anti-takeover effects. The Rights will cause substantial dilution to a person or
group that attempts to acquire us without  conditioning  the offer on the Rights
being redeemed or a substantial  number of Rights being acquired.  However,  the
Rights should not interfere with any tender offer, or merger,  which is approved
by us because the Rights do not become  exercisable  in the event of an offer or
other acquisition exempted by our Board of Directors.


                                       77



                             EXECUTIVE COMPENSATION

      The following table sets forth certain compensation awarded or paid by the
Company during the years ended  December 31, 2003,  2002 and 2001 to persons who
served as its Chief Executive Officer and as its other executive officers during
2003  (collectively,  the "Named Executive  Officers").  The compensation  table
excludes  other  compensation  in the form of  perquisites  and  other  personal
benefits  that  constitute  the lesser of $50,000 or 10% of the total salary and
bonus earned by each of the named Executive Officers in each fiscal year.


                           Summary Compensation Table




                                                                               Long-Term
                                                                              Compensation
                                                                               Securities
                                                                               Underlying
                                                                                Options             All Other
     Name and Principal Position         Year    Salary          Bons($)       Granted(1)       Compensation ($)
- ----------------------------------      ------   -----------     -------      --------------    ----------------
                                                                                 
Anthony J. Cataldo (2)                    2003     445,667(3)          0         2,492,341(4)                  0
    Executive Chairman of the Board       2002     185,726(3)          0            30,000(4)                  0
J. Richard George (5)                     2003     135,692             0           103,494(6)                  0
    Chief Executive Officer and
    President
Nancy E. Katz (7)                         2003     121,073             0         1,544,476(8)            312,692 (9)
   Former President, Chief Executive      2002     265,269             0            14,049(8)                  0
      Officer and Member of the Board     2001     239,039             0            30,000                     0
      of Directors
Jay Oyakawa (10)                          2003     209,941             0                 0                     0
    Former President and Chief
      Operating Officer and Member of
      the Board
Richard D. Brounstein (11)                2003     201,792             0           757,371(12)                 0
   Executive Vice President and Chief     2002     122,596        15,000                 0                     0
      Financial Officer; Former           2001       4,808             0            25,000(13)            26,000(14)
      Member of the Board



- ---------------
(1)  All figures in this column represent options to purchase Common Stock.

(2)  Mr. Cataldo has served as Executive Chairman of the Board since May 2002.

(3)  At the Company's  request,  Mr. Cataldo deferred  approximately  30% of his
     cash salary from May 2002 through April 2003. The figure  reported here for
     calendar 2002 is net of the deferral. At December 31, 2002, the Company had
     recorded expense totaling approximately  $266,000,  including an accrual of
     approximately  $80,000 for Mr.  Cataldo's  deferred  salary.  All  deferred
     amounts due Mr. Cataldo were paid during 2003 and the figure  reported here
     for calendar 2003 reflects the payment of all such deferred amounts.

(4)  On May 10,  2002,  when the market  price of the Common Stock was $0.90 per
     share and pursuant to his  employment  agreement,  Mr.  Cataldo was granted
     fully-vested  options  to  purchase  65,556  shares  at $0.45 per share and
     options to purchase  200,000 shares at $0.90 per share,  with the option to
     purchase  100,000 shares vested  immediately and the option to purchase the
     remainder  vested on the one-year  anniversary of the option grant.  In the
     fourth  quarter of 2002, the Company  renegotiated  the terms of the option
     grant in Mr. Cataldo's  employment  agreement,  canceling all but 30,000 of
     the options granted at $0.90. Mr. Cataldo was subsequently  granted 235,556
     fully-vested  options at an exercise  price of $0.32 per share,  the market
     price  of the  Common  Stock  on the May 29,  2003  grant  date,  following
     stockholder  approval at the May 20, 2003 Annual  Stockholders'  Meeting of
     amendments to the Company's 2000 Plan.  Additionally,  on May 29, 2003, Mr.
     Cataldo was granted fully-exercisable options to purchase 256,785 shares at
     $0.01 per share, in recognition of an additional  temporary salary deferral
     arrangement  beyond that  described  in (3) above,  and options to purchase
     2,000,000  shares at $0.32 per share.  The latter options were  exercisable
     50% upon grant and 50% on the one year anniversary of the grant.


                                       78


(5)  Dr.  George has  served as  President  and Chief  Executive  Officer  since
     January  2004.  He joined the Company in January 2003 as Vice  President of
     Government Affairs.

(6)  Represents a  fully-vested  option  grant for 16,827  shares at an exercise
     price of $0.01 per share in  recognition  of a  temporary  salary  deferral
     arrangement  and  grants of 6,667  shares  and  80,000  shares,  both at an
     exercise price of $0.32 per share, which vest over a three year period from
     the grant date.

(7)  Ms. Katz served as President and Chief Executive Officer from December 2001
     to June  2003.  From  June  2000  through  December  2001,  she  served  as
     President,  Chief Executive Officer and Chief Financial Officer. She joined
     the Company in October 1999 as  President,  Chief  Operating  Officer,  and
     Chief Financial Officer.

(8)  All of Ms.  Katz'  unexercised  options,  together  aggregating  options to
     purchase  62,573  shares,  were  cancelled  in the fourth  quarter of 2002.
     Subsequently,  Ms.  Katz was  granted  62,573  fully-vested  options  at an
     exercise price of $0.32 per share,  the market price of the Common Stock on
     the May 29, 2003 grant date, following  stockholder approval at the May 20,
     2003 Annual  Stockholders'  Meeting of amendments to the 2000 Plan. She was
     also granted  146,667  fully  vested  options at $0.32 per share on May 29,
     2003   pursuant  to  her  amended   October  2002   employment   agreement.
     Additionally,  on May 29,  2003,  Ms.  Katz was  granted  fully-exercisable
     options to purchase  85,236 shares at $0.01 per share,  in recognition of a
     temporary salary deferral  arrangement,  and options to purchase  1,250,000
     shares of the Common  Stock at $0.32 per share.  The  latter  options  were
     exercisable  50%  upon  grant  and 50% on the one year  anniversary  of the
     grant.

(9)  Under the terms of a  Separation  Agreement,  Mutual  Release and Waiver of
     Claims, Ms. Katz resigned effective June 2, 2003 as the Company's President
     and Chief Executive  Officer and effective June 27, 2003 as a member of the
     Company's Board of Directors.  Under the terms of the Separation Agreement,
     the Company agreed to pay Ms. Katz approximately  $313,000 over a period of
     up to one  year  and  to  permit  previously  issued  options  to  vest  in
     accordance  with the terms of their  grants.  The Company paid Ms. Katz all
     amounts due pursuant to the Separation Agreement during 2003.

(10) Mr. Oyakawa served as the Company's  President and Chief Operating  Officer
     and member of the Board from June 2003 to January 2004.  Under the terms of
     a January 19, 2004 Separation  Agreement and Release,  Mr. Oyakawa resigned
     effective January 19, 2004 from his positions as an officer and director of
     the Company. The Company agreed to pay Mr. Oyakawa a severance equal to one
     year's salary of $350,000 over a twelve month period.  On January 15, 2004,
     the Company  granted Mr.  Oyakawa  options to  purchase  750,000  shares of
     Common  Stock at an exercise  price of $0.32 per share.  At the time of Mr.
     Oyakawa's  grant, the market price of the Common Stock was $0.62 per share.
     Under the terms of the Separation  Agreement and Release,  the options were
     fully vested.  Mr.  Oyakawa may exercise the options for two years from the
     date of grant.

(11) Mr.  Brounstein has served as Executive Vice President and Chief  Financial
     Officer  since  joining  the Company in  December  2001.  He had served the
     Company as a financial  consultant from July 2001 through December 2001. He
     served as a member of the Board from December 2001 until May 2003,  when he
     did not stand for re-election.

(12) All of Mr. Brounstein's  options,  together aggregating options to purchase
     25,000 shares, were cancelled in the fourth quarter of 2002. Mr. Brounstein
     was granted 25,000  fully-vested  options at an exercise price of $0.32 per
     share, the market price of the Common Stock on the May 29, 2003 grant date,
     following  stockholder  approval at the May 20,  2003 Annual  Stockholders'
     Meeting of amendments  to the 2000 Plan.  Under the terms of a January 2003
     employment  agreement,  Mr.  Brounstein was granted fully vested options to
     purchase  83,333 shares at an exercise  price of $0.32 per share on May 29,
     2003.   Additionally,   on  May  29,  2003,  Mr.   Brounstein  was  granted
     fully-exercisable  options to purchase 24,038 shares at $0.01 per share, in
     recognition  of a temporary  salary  deferral  arrangement,  and options to
     purchase  625,000  shares at $0.32  per  share.  The  latter  options  were
     exercisable  50%  upon  grant  and 50% on the one year  anniversary  of the
     grant.

(13) Represents  option  grant  for  16,667  shares  pursuant  to an  employment
     agreement  between Mr.  Brounstein  and the Company and an option grant for
     8,333 shares made pursuant to a July 2001 Consulting  Contract  between Mr.
     Brounstein and the Company under which he served as a financial  consultant
     to the Company.  All of these options were  cancelled in the fourth quarter
     of 2002.


                                       79


(14) Represents cash payments made to Mr.  Brounstein  pursuant to the July 2001
     Consulting Contract referred to in Note (13).


                     Stock Option Grants in Last Fiscal Year
                                Individual Grants

      The  following  table  sets forth  information  concerning  stock  options
granted to the Named  Executive  Officers  during the fiscal year ended December
31, 2003:




                                                     Percent of Total
                             Number of Securities    Options Granted   Exercise
                             Underlying Options       to Employees in  Price      Expiration
Name                               Granted            Fiscal Year(1)    ($/sh)(2)    Date
- ----------------             --------------------    ----------------  ---------   -----------
                                                                       
Anthony J. Cataldo                   256,785   (3)            2.80 %      0.01      5/29/13
                                     235,556   (4)            2.57 %      0.32      5/29/08
                                   2,000,000   (5)           21.83 %      0.32      5/29/13

J. Richard George                     16,827   (3)            0.18 %      0.01      5/29/13
                                       6,667   (6)            0.07 %      0.32      5/29/13
                                      80,000   (7)            0.87 %      0.32      5/29/13

Nancy E. Katz (8)                     85,236   (3)            0.93 %      0.01      5/29/13
                                      62,573   (9)            0.68 %      0.32      5/29/13
                                     146,667  (10)            1.60 %      0.32      5/29/08
                                   1,250,000   (5)           13.65 %      0.32      5/29/13

Jay Oyakawa (11)                           -                     -           -            -

Richard D. Brounstein                 24,038   (3)            0.26%       0.01      5/29/13
                                      25,000   (9)            0.27%       0.32      5/29/13
                                      83,333  (12)            0.91%       0.32      5/29/08
                                     625,000   (5)            6.82%       0.32      5/29/13



- --------------

(1)  Based on the aggregate of 8,528,626  options granted under the 2000 Plan to
     employees and  consultants  to the Company and 631,667  options  granted to
     Directors  under the Director Plan during the year ended December 31, 2003,
     including grants to the Named Executive Officers.

(2)  All options grants reported here were made on May 29, 2003, when the market
     price     of     the     Common     Stock     as     reported     on    the
     Over-The-Counter-Bulletin-Board was $0.32 per share.

(3)  Options  granted as fully  vested under the 2000 Plan in  recognition  of a
     temporary  salary deferral  arrangement.  The options expire ten years from
     the date of grant.

(4)  Options  granted as  fully-vested  under the 2000 Plan.  The grant was made
     pursuant to Mr.  Cataldo's May 2002 Employment  Agreement with the Company,
     but was deferred until May 29, 2003, following  stockholder approval at the
     May 20, 2003 Annual  Stockholders'  Meeting of amendments to the 2000 Plan.
     The  options  expire  five years from the date of grant.  In the event of a
     change of control, the options will become fully vested and Mr. Cataldo may
     exercise  them for the shorter of the  remainder of their five year term or
     two years from the effective date of the change of control.

(5)  Options  granted  under the 2000 Plan.  The options vest 50% on the date of
     grant and 50% on the one-year  anniversary  of the grant date.  The options
     expire  ten  years  from the date of  grant.  In the  event of a change  of
     control,  the options will become fully vested and the grantee may exercise
     them for the shorter of the  remainder  of their ten year term or two years
     from the effective date of the change of control.

(6)  Options  granted under the 2000 Plan. The options vest at the rate of 1,117
     shares on the six month  anniversary  of the May 29, 2003 grant date and at
     185 shares per month for the  remaining 30 months.  The options will expire
     10 years from the date of grant.

(7)  Options granted under the 2000 Plan. The options vest at the rate of 13,340
     shares on the six month  anniversary  of the May 29, 2003 grant date and at
     2,222 shares per month for the remaining 30 months. The options will expire
     10 years from the date of grant.


                                       80


(8)  Under the terms of the Separation  Agreement,  Mutual Release and Waiver of
     Claims  between the Company and Ms. Katz,  the Company agreed to permit the
     options issued to Ms. Katz during 2003 prior to her  termination to vest in
     accordance with the terms of their grants.

(9)  Options granted under the 2000 Plan.  These options were issued pursuant to
     the  Company's   fourth   quarter  2002   cancellation   of  the  grantee's
     previously-unexercised  options.  The options were granted as  fully-vested
     and expire ten years from the May 29,  2003 grant  date.  In the event of a
     change of control,  the grantee may exercise the options for the shorter of
     the remainder of their ten year term or two years from the  effective  date
     of the change of control.

(10) Options  granted  under the 2000 Plan.  The grant was made  pursuant to Ms.
     Katz' October 2002 Employment  Agreement with the Company, but was deferred
     until May 29,  2003,  following  stockholder  approval  at the May 20, 2003
     Annual  Stockholders'  Meeting of amendments to the 2000 Plan.  The options
     expire  five  years  from the date of  grant.  In the  event of a change of
     control,  the options  will become  fully  vested and Ms. Katz may exercise
     them for the shorter of the  remainder of their five year term or two years
     from the effective date of the change of control.

(11) Pursuant to the Employment  Agreement  between the Company and Mr. Oyakawa,
     on January 15,  2004,  when the market value of the Common Stock was $0.62,
     the Company  granted Mr.  Oyakawa  options to  purchase  750,000  shares of
     Common  Stock at $0.32 per share.  Under the terms of the  January 19, 2004
     Separation  Agreement and Release between the Company and Mr. Oyakawa,  the
     options became  fully-vested.  Mr. Oyakawa may exercise the options for two
     years from the date of grant.

(12) Options  granted  under the 2000 Plan.  The grant was made  pursuant to Mr.
     Brounstein's  January 2003 Employment  Agreement with the Company,  but was
     deferred until May 29, 2003, following  stockholder approval at the May 20,
     2003  Annual  Stockholders'  Meeting of  amendments  to the 2000 Plan.  The
     options expire five years from the date of grant.  In the event of a change
     of control,  the options will become fully  vested and Mr.  Brounstein  may
     exercise  them for the shorter of the  remainder of their five year term or
     two years from the effective date of the change of control.



The following table sets forth  information  concerning option exercises for the
year ended  December  31,  2003,  with  respect  to each of the Named  Executive
Officers.

                       Aggregated Option Exercises in 2003
                       and December 31, 2003 Option Values




                                                                                                     Value of Unexercised
                                                                      Number of Securities          In-the-Money Options
                                          Shares                      Underlying Unexercisable       at Fiscal Year End($)
                                        Acquired on      Value        Options at Fiscal Year End(#)  (Exercisable/
Name                                    Exercise(#)   Realized ($)(2) (Exercisable/Unexercisable)(1) Unexercisable(1)(3)
- ----------------------               ---------------  --------------   ----------------------------  ---------------
                                                                                         
Anthony J. Cataldo                               0               0       1,522,341 / 1,000,000    227,639 / 145,000

J Richard George                                 0               0             33,495 / 69,999      10,073 / 10,150

Nancy E. Katz (4)                          919,477         227,666                 0 / 624,999           0 / 90,625

Jay Oyakawa (5)                                  0               0                       0 / 0                0 / 0

Richard D. Brounstein                            0               0           444,871 / 312,500      71,958 / 45,313



- ---------------

(1)  Reflects in-the-money options granted under the 2000 Plan.

(2)  Value  realized is based on the fair market value of the shares on the date
     of exercise as reported on the  Over-The-Counter  Bulletin  Board minus the
     exercise price multiplied by the number of shares acquired on exercise.

(3)  Value realized and value of unexercised  in-the-money options is based on a
     value of  $0.465  per  share of the  Common  Stock,  the  closing  price on
     December 31, 2003 as quoted on the Over-The-Counter-Bulletin-Board. Amounts
     reflect such fair market value minus the exercise  price  multiplied by the
     number of shares to be acquired on exercise  and do not  indicate  that the
     optionee actually sold such stock.


                                       81


(4)  Under the terms of the Separation  Agreement,  Mutual Release and Waiver of
     Claims  between  the  Company and Ms.  Katz,  the Company  agreed to permit
     options  previously issued to Ms. Katz to vest in accordance with the terms
     of their grants.

(5)  Pursuant to the Employment  Agreement  between the Company and Mr. Oyakawa,
     on January 15,  2004,  when the fair market  value of the Common  Stock was
     $0.62,  the Company granted Mr. Oyakawa options to purchase  750,000 shares
     of the Common Stock at $0.32 per share.  Under the terms of the January 19,
     2004 Separation  Agreement and Release between the Company and Mr. Oyakawa,
     the options became  fully-vested.  Mr. Oyakawa may exercise the options for
     two years from the date of grant.


             COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

The  Compensation  Committee  of the  Board  of  Directors  is  responsible  for
administering the Company's executive  compensation  policies and programs.  The
Compensation  Committee  also reviews and approves the salaries and bonuses,  if
any,  of the  Company's  executive  officers  as well as all grants of long term
incentive and  equity-based  compensation  awards.  The  Compensation  Committee
currently consists of two directors,  each of whom are independent of management
and free from any  relationship  that, in the opinion of the Board of Directors,
would  interfere  with  the  exercise  of  their   independent   judgment  as  a
Compensation  Committee  member.   Further,  the  members  of  the  Compensation
Committee  are  directors  who qualify as  "non-employee  directors"  within the
meaning of Rule 16b-3 under the Securities  Exchange Act of 1934, as amended and
as  "outside  directors"  within the meaning of Section  162(m) of the  Internal
Revenue Code.

         Executive  Officer  Compensation  Policy.  The  Compensation  Committee
administers the Company's  executive  compensation  policies with the objectives
of:

o    aligning the interests of executive  officers with the long-term  interests
     of the Company's stockholders;

o    providing  competitive  levels of  compensation  which are,  in large part,
     conditioned on the Company's  attainment of specified  performance  targets
     and/or stock price appreciation; and

o    attracting, motivating and retaining the best possible executive talent for
     the benefit of the Company's stockholders.

      In assessing overall compensation for executive officers, the Compensation
Committee considers the Company's performance and industry position, and general
industry  data.  In  furtherance  of these goals,  the  components  of executive
compensation are linked to both Company and individual performance.

     Employment  Agreements.  Each Named  Executive  Officer is  employed by the
Company pursuant to a written agreement of employment. Each employment agreement
reflects the terms that the  Compensation  Committee  believed were  appropriate
and/or necessary to retain the services of the particular  executive  officer at
the time it was executed,  within the  framework of the  Company's  compensation
policies and its financial condition.  The Compensation Committee has considered
the  advisability  of using  employment  agreements  and  determined  that under
certain  circumstances  it is in the  best  interests  of the  Company  and  its
stockholders  insofar as it permits the Company to achieve its desired  goals of
retaining the best  possible  executive  talent.  In addition,  each  employment
agreement   contains   restrictive   covenants,    including    non-competition,
non-solicitation and confidentiality  covenants, for the benefit of the Company.
The Compensation  Committee has determined that the use of employment agreements
may be necessary in certain  cases to help ensure the retention of key executive
officers,  to attract  additional  executive talent to the Company and to impose
appropriate restrictive covenants on such officers.

     Components  of  Executive  Compensation.   The  material  elements  of  the
Company's current executive  compensation  arrangements  include base salary and
equity incentive awards.  In 2003 and prior years,  equity awards were generally
granted in the form of options to purchase shares of Common Stock. This strategy
is intended to increase  the  beneficial  ownership  of Common  Stock by Company
executives while at the same time continuing to align their interests with those
of the Company's stockholders.


                                       82


     The  Company  does  not   presently   have  a  formal  annual  bonus  plan.
Nevertheless,   subject  to  the  availability  of  sufficient  cash  resources,
executives  and certain  other key employees are eligible to earn annual cash or
stock  bonuses  for   achievement  of  both   Company-wide   and  individual  or
departmental goals.

     For 2004, the Company expects to continue to use options to purchase Common
Stock as a primary  vehicle for equity  grants to further align the interests of
Company  employees  with  Company  stockholders.  Subject  to the  stockholders'
approval at the 2004 Annual  Meeting of Proposal 2 adopting the  Company's  2004
Incentive Plan, the Committee plans to grant options to purchase an aggregate of
18,000,000  shares of Common  Stock at an exercise  price of $0.585 per share to
seven executives and other key employees. The Compensation Committee and Company
management view this approach as the most  appropriate  and effective  manner of
meeting the critical goals of retaining key management  employees and minimizing
cash outflows while at the same time aligning the interests of key employees and
stockholders.  If approved by the stockholders,  the 2004 Incentive Plan permits
the Company to issue a variety of other equity-based awards in addition to stock
options,  which the  Compensation  Committee and  management may consider in the
future.

     Base Salaries.  Base salary represents the fixed component of the executive
compensation program.  Base salaries of the Executive Chairman,  Chief Executive
Officer,  Chief Financial Officer, Chief Operating Officer and senior management
are  determined  by  reviewing   comparable  market  base  salary  compensation,
individual performance, and relevant experience and demonstrated capabilities in
meeting the  requirements  of the  position.  The base salaries of the Executive
Chairman, Chief Executive, Financial and Operating Officers and other members of
Senior Management are determined by the Compensation  Committee's  evaluation of
the  Company's  attainment  of its  stated  overall  goals and  targets  and the
individual's contribution toward and performance in attaining such goals.

     Long-term  Incentive Awards. As noted  previously,  the Committee  believes
that stock option grants serve to align the goals of the Company's  stockholders
and employees.  In addition to that  objective,  the Company's  stock option and
purchase  plans,  including  the proposed  2004  Incentive  Plan also assist the
Company in providing (1) a long-term incentive to help reduce employee turnover,
(2) a competitive  package for recruiting new employees,  (3) a long-term reward
for loyalty,  dedication and service, and (4) the vehicle for employees to share
in the rewards of "building stockholder value."

   Executive Chairman Compensation

     In May 2002,  in  conjunction  with the  financing  proposal  enabling  the
restart of the Company's  operations,  the independent  members of the Company's
Board  entered into a five-year  employment  agreement  with Anthony  Cataldo to
serve  as  the  Company's  new  Executive  Chairman.  The  employment  agreement
specifies a base annual salary of $400,000 and allows for annual increases based
on the Company's  performance and approval of the  Compensation  Committee.  The
Compensation Committee has not adjusted Mr. Cataldo's base salary during 2003 or
subsequently.  The Company  deferred  approximately  30% of Mr.  Cataldo's  cash
compensation  during 2002, which it accrued.  The Company continued to defer and
accrue this compensation  until it was paid during the third quarter of 2003. On
May 10, 2002, when the market price of the Common Stock was $0.90 per share, the
Company  granted Mr. Cataldo  fully-vested  options to purchase 65,556 shares of
Common Stock at $0.45 per share and options to purchase 200,000 shares of Common
Stock at $0.90 per share,  with the option to  purchase  100,000  shares  vested
immediately  and the option to purchase  the  remainder  vesting on the one-year
anniversary  of the option grant.  Both option grants have a five-year  term. In
the fourth  quarter of 2002,  the Company  renegotiated  the terms of the option
grant contained in Mr. Cataldo's Employment Agreement,  canceling all but 30,000
of the options granted at $0.90. Subsequently, following stockholder approval at
the May 20, 2003 Annual Stockholders' Meeting of amendments to the 2000 Plan, on
May 29,  2003,  Mr.  Cataldo  was  granted  235,556  fully-vested  options at an
exercise price of $0.32 per share,  the market price of the Common Stock on that
date. Additionally,  on May 29, 2003, Mr. Cataldo was granted  fully-exercisable
options  to  purchase  256,785  shares of Common  Stock at $0.01 per  share,  in
recognition  of an  additional  salary  deferral  arrangement,  and  options  to
purchase 2,000,000 shares of Common Stock at $0.32 per share. The latter options
were  exercisable  50% upon  grant  and 50% on the one year  anniversary  of the
grant.  Subject to the approval by the Company's  stockholders  of Proposal 2 to
adopt the Company's 2004 Incentive Plan, the Committee plans to grant options to
purchase  5,000,000  shares of the Company's  common stock to Mr.  Cataldo at an
exercise  price of $0.585 per share,  the price of the Common  Stock on February
24, 2004,  the date the  Committee  approved the grant.  The options will have a
ten-year  term  and  will be  exercisable  50%  upon  grant  and  50%  one  year
thereafter.  The  Compensation  Committee  considers this level of  compensation
appropriate in view of Mr. Cataldo's background, leadership and accomplishments.


                                       83


   Chief Executive Officer, President, and Chief Operating Officer Compensation

     In October 2002, the Company entered into a five-year  employment agreement
with Nancy E. Katz, the Company's former  President and Chief Executive  Officer
and member of the Board, that included an annual salary of $300,000,  subject to
annual review.  The Compensation  Committee did not adjust Ms. Katz' base salary
prior to her  resignation in June 2003. In conjunction  with the agreement,  the
Company granted Ms. Katz options to purchase  146,667 shares of Common Stock, at
an exercise price of $2.40, subject to stockholder approval of amendments at the
2003 Annual Meeting of Stockholders  to the 2000 Plan.  These options were to be
fully vested on the grant date.  In February  2003,  the exercise  price of this
option was  reduced to the lesser of $1.50 per share or the market  price on the
grant date.  In the fourth  quarter of 2002,  Ms. Katz  permitted the Company to
cancel  all  outstanding  options  previously  granted  to her  under  the  1991
Incentive  Stock  Plan  and the 2000  Plan,  an  aggregate  of  62,573  options.
Subsequently,  following  stockholder  approval  at  the  May  20,  2003  Annual
Stockholders'  Meeting of  amendments  to the 2000 Plan,  on May 29,  2003,  the
Company  granted Ms. Katz 62,573  fully-vested  options at an exercise  price of
$0.32 per share,  the market price of the Common Stock on that date. The options
granted  conditionally  under Ms. Katz' October 2002  Employment  Agreement were
also granted as fully  vested at $0.32 per share on May 29, 2003.  Additionally,
on May 29,  2003,  Ms.  Katz was granted  fully-exercisable  options to purchase
85,236 shares of Common Stock at $0.01 per share,  in  recognition of an earlier
salary deferral arrangement,  and options to purchase 1,250,000 shares of Common
Stock at $0.32 per share. The latter options were exercisable 50% upon grant and
50% on the one year  anniversary  of the grant.  Under the terms of a Separation
Agreement, Mutual Release and Waiver of Claims, Ms. Katz resigned effective June
2, 2003 as the  Company's  President and Chief  Executive  Officer and effective
June  27,  2003 as a member  of the  Company's  Board.  Under  the  terms of the
Separation  Agreement,  the Company agreed to pay approximately  $313,000 over a
period  of up to one year and to permit  previously  issued  options  to vest in
accordance with the terms of their grants. All amounts due to Ms. Katz under the
Separation Agreement were paid during 2003.

     In June 2003,  the Company  entered into a five year  employment  agreement
with Jay Oyakawa, the Company's former President and Chief Operating Officer and
member of the Board, that included an annual base salary of $350,000. On January
15, 2004,  when the market  price of the Common  Stock was $0.62 per share,  Mr.
Oyakawa  was  granted  options  to  purchase  750,000  shares  of  Common  Stock
exercisable  at $0.32  pursuant to the 2000 Plan.  The  options  vested 50% upon
grant and 50% on the one-year anniversary of the grant. On January 19, 2004, Mr.
Oyakawa resigned from his position as President,  Chief Operating Officer and as
a member of the Board.  The Company  entered  into a  Separation  Agreement  and
Release with Mr.  Oyakawa  effective  on January 19, 2004  pursuant to which the
Company  will pay him  severance  in an  amount  equal to one  year's  salary of
$350,000 over a twelve month period. Under the terms of the Separation Agreement
and  Release,  the options  became  fully-vested.  Mr.  Oyakawa may exercise the
options for two years from the date of grant.

     In January 2004, the Company entered into a three year employment agreement
with J. Richard  George to serve as the Company's  Chief  Executive  Officer and
President  and that  includes an annual base salary of $250,000.  Subject to the
approval by the Company's stockholders of Proposal 2 to adopt the Company's 2004
Incentive  Plan,  the  Committee  plans to grant  options to purchase  5,000,000
shares of the  Company's  common  stock to Dr.  George at an  exercise  price of
$0.585 per share,  the price of the Common Stock on February 24, 2004,  the date
the Committee approved the grant. The options will have a ten-year term and will
be  exercisable  50% upon grant and 50% one year  thereafter.  The  Compensation
Committee  considers  this  level  of  compensation  appropriate  in view of Dr.
George's background, leadership and accomplishments.


Chief Financial Officer Compensation

     On January 1, 2003,  the Company  entered  into a twelve  month  employment
agreement,  with automatic  renewal  options,  with Richard D.  Brounstein,  the
Company's Executive Vice President and Chief Financial Officer, that included an
annual base  salary of  $200,000,  and the grant of options to  purchase  83,333
shares of Common  Stock at an  exercise  price of $1.50 per  share,  subject  to
stockholder approval of amendments at the 2003 Annual Meeting of Stockholders to
the 2000 Plan. The Compensation  Committee did not adjust Mr.  Brounstein's base
salary during 2003 or subsequently.  The options granted were to be fully vested
on the grant  date.  Mr.  Brounstein  had  previously  been  granted  options to
purchase  an  aggregate  of  25,000  shares  of  Common  Stock in 2001 and 2002,
pursuant to a July 2001 consulting contract under which he served as a financial
consultant  to the  Company.  In the  fourth  quarter  of 2002,  Mr.  Brounstein
permitted the Company to cancel all outstanding  options  previously  granted to
him.  Subsequently,  following  stockholder  approval at the May 20, 2003 Annual
Stockholders'  Meeting  of  amendments  to


                                       84


the 2000 Plan, on May 29, 2003 Mr.  Brounstein was granted  25,000  fully-vested
options at an exercise price of $0.32 per share,  the market price of the Common
Stock on that date. The options granted  conditionally  to Mr.  Brounstein under
his Employment Agreement were also granted as fully vested at $0.32 per share on
May 29,  2003.  Additionally,  on May  29,  2003,  Mr.  Brounstein  was  granted
fully-exercisable options to purchase 24,038 shares of Common Stock at $0.01 per
share, in recognition of an earlier temporary salary deferral  arrangement,  and
options to  purchase  625,000  shares of Common  Stock at $0.32 per  share.  The
latter  options  were  exercisable  50%  upon  grant  and  50% on the  one  year
anniversary of the grant. Subject to the approval by the Company's  stockholders
of Proposal 2 to adopt the Company's 2004 Incentive Plan, the Committee plans to
grant options to purchase  1,500,000 shares of the Company's common stock to Mr.
Brounstein  at an  exercise  price of $0.585 per share,  the price of the Common
Stock on February  24, 2004,  the date the  Committee  approved  the grant.  The
options will have a ten-year term and will be exercisable 50% upon grant and 50%
one  year  thereafter.  The  Committee  considers  this  level  of  compensation
appropriate   in   view  of  Mr.   Brounstein's   background,   leadership   and
accomplishments.

              SUBMITTED BY THE COMPENSATION COMMITTEE OF THE BOARD

                                        Julius Krevans, M.D.
                                        Paul Freiman

April 16, 2004


                                       85



                              FINANCIAL STATEMENTS

The Company's  audited  Consolidated  Financial  Statements  for the years ended
December  31,  2003 and 2002 are  included  on pages  F-1  through  F-38 of this
Prospectus.  The Company's unaudited Condensed Consolidated Financial Statements
for the quarter  ended March 31, 2004 are included on pages F-39 through F-50 of
this Prospectus.


           CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
                            AND FINANCIAL DISCLOSURE

Calypte was contacted by the San Francisco District Office of the Securities and
Exchange  Commission  ("Commission")  on  October  28,  2003 and  advised  of an
informal  inquiry being  conducted by the  enforcement  staff of the  Commission
regarding the Company.  The staff requested,  among other things,  documents and
information  related  to  certain  press  releases  issued by the  Company.  The
Commission  advised the Company  that the inquiry  should not be construed as an
indication  by the  Commission  or its  staff  that  any  violation  of law  has
occurred.  The  Company  voluntarily  provided  the  information  sought  by the
Commission  and cooperated  with the Commission in connection  with its informal
inquiry.  Independently,  the Company's Audit Committee  investigated the matter
and retained  outside  counsel to assist in its  investigation  by reviewing the
press  releases  and related  information  that were the  subject  matter of the
Commission's   informal  inquiry  letter.  The  Audit  Committee  completed  its
investigation  and  reported  the results of its  investigation  and  associated
recommendations  to the Board of  Directors.  Counsel  for the  Audit  Committee
advised the Audit Committee and the Board of Directors that the results of their
investigation,  interviews  and review of documents  provided in response to the
Commission's  informal  inquiry  letter  indicated  no  evidence  of  management
malfeasance  with respect to its inquiry.  The Audit  Committee,  based upon its
counsel's recommendations, proposed that the Company implement certain practices
and  procedures,  some of which  represent a continuation  or  formalization  of
present practices. The recommendations and proposals of the Audit Committee that
were  approved by the Board of Directors  include  certain  improvements  in the
Company's press release issuance  process and investor  relations and regulatory
recordkeeping  procedures.   Additionally,   the  Board  of  Directors  directed
management  to  implement  the  American  Stock  Exchange  corporate  governance
standards  (SR-AMEX-2003-65) approved by the Commission on December 1, 2003. The
Company  continues  to  implement  the  directives  of its  Board  of  Directors
regarding Corporate Governance and has submitted to the Board, and the Board has
approved, certain policies and guidelines related to press releases and investor
relations that reflect the recommendations of the Audit Committee.

Subsequently,  by letter  dated July 14, 2004 the SEC  Division  of  Enforcement
notified the Company that the matter has been terminated and that no enforcement
action has been recommended by the Commission at this time.

The interim financial  statements  contained in a Form 10-QSB are required to be
reviewed  under  Statement  of  Auditing  Standards  No.  100 ("SAS  100") by an
independent  public  accountant  pursuant  to Item  310(b)  of the  Commission's
Regulation  S-B.  Calypte's  former  independent  auditors,  KPMG LLP  ("KPMG"),
informed the Company that they could not complete their quarterly  review of the
Company's  interim  financial  statements  contained in the Company's  Quarterly
Report on Form 10-QSB for the quarterly period ended September 30, 2003 or audit
the Company's  financial  statements for its fiscal year ended December 31, 2003
until such time as the Company's Audit Committee had completed the investigation
related to the Commission's  informal  inquiry letter,  the same was reviewed by
KPMG, and KPMG was satisfied that, in its opinion, an adequate investigation was
conducted  and  appropriate  conclusions  were  reached  and actions  taken.  On
December 23, 2003, the Company  dismissed  KPMG as independent  auditors for the
Company, effective immediately.  The decision to dismiss KPMG was recommended by
the  Audit  Committee  of the  Board  of  Directors.  As of the  date of  KPMG's
dismissal,  KPMG had advised the Company that, in KPMG's opinion, the conditions
necessary  for KPMG to complete  its review had not yet been  satisfied.  At the
time of KPMG's dismissal,  the Audit Committee had completed its  investigation,
had reported the results of its investigation and associated  recommendations to
the  Board  of  Directors,   and  the  Board  of  Directors  had  approved  such
recommendations.  In addition, at such time, counsel for the Audit Committee had
advised  the  Company  that it had  commenced  to  provide  information  to KPMG
concerning the investigation  conducted, the conclusions reached and the actions
taken by the Company.

KPMG's  reports on the financial  statements of the Company for its fiscal years
ended December 31, 2002 and December 31, 2001 did not contain an adverse opinion
or a  disclaimer  of opinion nor were such  reports  qualified or modified as to
uncertainty,  audit scope or  accounting  principles,  except that the report of
KPMG on the  financial  statements  of the  Company  for its  fiscal  year ended
December 31, 2002 included the following separate paragraph:


                                       86


         "The accompanying  consolidated financial statements have been prepared
         assuming  that  the  Company  will  continue  as a  going  concern.  As
         discussed  in  Note 1 to the  consolidated  financial  statements,  the
         Company has suffered recurring losses from operations and has a working
         capital deficit and an accumulated deficit that raise substantial doubt
         about its ability to continue as a going concern. Management's plans in
         regard to these matters are also described in Note 1. The  consolidated
         financial  statements do not include any adjustments  that might result
         from the outcome of this uncertainty."

And the report of KPMG on the financial statements of the Company for its fiscal
year ended December 31, 2001 included the following separate paragraph:

         "The accompanying  consolidated financial statements have been prepared
         assuming  that  the  Company  will  continue  as a  going  concern.  As
         discussed  in  Note 1 to the  consolidated  financial  statements,  the
         Company  has  suffered  recurring  losses  from  operations  and has an
         accumulated  deficit that raise  substantial doubt about its ability to
         continue  as a going  concern.  Management's  plans in  regard to these
         matters  are  also  described  in Note 1.  The  consolidated  financial
         statements  do not include any  adjustments  that might result from the
         outcome of this uncertainty."

During  the  Company's  2001 and  2002  fiscal  years  and  through  the date of
dismissal  of KPMG,  there  were no  disagreements  with  KPMG on any  matter of
accounting  principles or practices,  financial statement disclosure or auditing
scope or procedure, which disagreements,  if not resolved to the satisfaction of
KPMG,  would have caused KPMG to make  reference  to the subject  matter of such
disagreements in connection with its reports.

Prior to its dismissal, KPMG informed the Company that it could not complete its
quarterly review of the interim financial statements of the Company contained in
the Company's  Quarterly  Report on Form 10-QSB for the  quarterly  period ended
September 30, 2003 or audit the Company's  financial  statements  for its fiscal
year ending  December 31, 2003 until such time as the Company's  Audit Committee
had  completed  the  investigation  referred  to in such  report,  the  same was
reviewed by KPMG,  and KPMG was  satisfied  that,  in its  opinion,  an adequate
investigation was conducted and appropriate conclusions were reached and actions
taken. As of the date of KPMG's dismissal,  KPMG had advised the Company that in
KPMG's  opinion  these  conditions  had not yet been  satisfied.  At the time of
KPMG's  dismissal,  the Audit  Committee had completed  its  investigation,  had
reported the results of its investigation and associated  recommendations to the
Board  of   Directors,   and  the  Board  of   Directors   had   approved   such
recommendations.  In addition,  at such time counsel for the Audit Committee had
commenced to provide information to KPMG concerning the investigation conducted,
the conclusions reached and the actions taken by the Company.

The  Company  provided  KPMG  with a copy of the  disclosures  contained  in its
Current  Report on Form 8-K, Item 4 filed on January 2, 2004 and requested  KPMG
to furnish the Company with a letter  addressed to the  Securities  and Exchange
Commission  (the "SEC") stating  whether KPMG agreed with the above  statements,
and, if not,  the  respects in which it did not agree.  On January 7, 2004,  the
Company  received a copy of a letter dated January 6, 2004  addressed to the SEC
by KPMG and filed it as Exhibit 16.1 to its Amended Form 8-K,  Item 4 on January
9, 2004. The KPMG letter stated "we disagree with the statement that at the time
of KPMG's  dismissal,  counsel for the Audit  Committee had commenced to provide
information to KPMG concerning the investigation conducted,  conclusions reached
and the actions taken by the Company." Contrary to KPMG's statement, the Company
was advised by counsel for the Audit  Committee that it had commenced to provide
information to KPMG  concerning the  investigation  conducted,  the  conclusions
reached and the actions taken by the Company.

In responding to the statement in the KPMG letter regarding KPMG's  disagreement
as to the Audit  Committee's  counsel's  provision of  information  to KPMG, the
Company  provided the following  additional  disclosure in its Amended Form 8-K,
Item 4 filed on January 9, 2004. "In connection with the SEC's informal  inquiry
letter dated  October 27, 2003,  the Audit  Committee of the Company (the "Audit
Committee" or  "Committee")  retained  counsel to review the press  releases and
related  information  that were the subject  matter of the SEC informal  inquiry
letter.  Counsel for the Audit Committee  advised the Committee and the Board of
Directors  that the  results of their  investigation,  interviews  and review of
documents  provided in response to the SEC informal  inquiry letter indicated no
evidence  of  management  malfeasance  with  respect to its  inquiry.  The Audit
Committee, based upon its counsel's  recommendations,  proposed that the Company
implement  certain   practices  and  procedures,   some  of  which  represent  a
continuation or  formalization of present  practices.  The  recommendations  and
proposals of the Audit  Committee  that were  approved by the Board of Directors
include certain improvements in the Company's press release issuance process and
investor relations and regulatory recordkeeping  procedures.  Additionally,  the
Board of Directors  has directed  management  to  implement  the American  Stock
Exchange corporate governance standards (SR-AMEX-2003-65) approved by the SEC on
December 1, 2003." The Company has not had any further  communication  with KPMG
since receiving a copy of its January 6, 2004 letter.


                                       87


On December 24, 2003, upon approval of the Audit Committee,  the Company engaged
Odenberg Ullakko Muranishi & Co. LLP ("OUM") to audit the consolidated financial
statements  of the Company for the two years  ending  December 31, 2003 and 2002
and to review the interim  financial  statements of the Company contained in the
Company's  Quarterly  Report  on Form  10-QSB  for the  quarterly  period  ended
September  30,  2003.  During the  Company's  two most recent  fiscal  years and
through  December 24, 2003,  the Company had not  consulted  with OUM  regarding
either (i) the application of accounting principles to a specified  transaction,
either  completed  or  proposed;  or the type of  audit  opinion  that  might be
rendered on the Company's financial statements, and neither a written report nor
oral advice was provided that was an important factor  considered by the Company
in reaching a decision as to the  accounting,  auditing or  financial  reporting
issue; or (ii) any matter that was either the subject of a disagreement, as that
term is defined  in Item  304(a)(1)(iv)(A)  of  Regulation  S-B and the  related
instructions to Item 304 of Regulation S-B.

The Company has  provided  OUM with a copy of the  disclosures  contained in its
Form 8-K, Item 4 filings and has provided OUM with an opportunity to furnish the
Company  with a letter  addressed  to the SEC  containing  any new  information,
clarification of the Company's expression of its views, or the respects in which
it does not  agree  with the  statements  made by the  Company  herein.  OUM has
advised the Company that it has  reviewed  this filing and has no basis on which
to submit a letter addressed to the SEC in response to Item 304(a) of Regulation
S-B.


                      INTEREST OF NAMED EXPERTS AND COUNSEL

The  consolidated  financial  statements of Calypte  Biomedical  Corporation and
subsidiaries  as of December 31, 2003 and 2002, and for each of the years in the
two-year  period ended December 31, 2003, are included on pages F-1 through F-38
in this registration  statement in reliance upon the reports of Odenberg Ullakko
Muranishi & Co. LLP, independent auditors and upon the authority of said firm as
experts in accounting and auditing.

The validity of the issuance of the shares being  offered  hereby will be passed
upon for us by Baratta & Goldstein, New York, New York.



                                       88



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 24.   INDEMNIFICATION OF DIRECTORS AND OFFICERS

Section 145 of the Delaware  General  Corporation  Law permits a corporation  to
include in its charter documents,  and in agreements between the corporation and
its directors and officers,  provisions  expanding the scope of  indemnification
beyond that specifically provided by the current law.

Article VIII of the Registrant's  Certificate of Incorporation  provides for the
indemnification  of directors to the fullest extent  permissible  under Delaware
law.

Article  VI of the  Registrant's  Bylaws  provides  for the  indemnification  of
officers,  directors and third parties  acting on behalf of the  corporation  if
such person acted in good faith and in a manner reasonably believed to be in and
not opposed to the best  interest of the  corporation,  and, with respect to any
criminal action or proceeding,  the  indemnified  party had no reason to believe
his conduct was unlawful.

Calypte has entered  into  indemnification  agreements  with its  directors  and
executive  officers,  in addition to  indemnification  provided for in Calypte's
Bylaws,  and  intends  to enter  into  indemnification  agreements  with any new
directors and executive officers in the future.


ITEM 25.    OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

SEC registration fees                              $       437.00

Legal fees and expenses                            $    10,000.00

Accountants' fees                                  $     5,000.00

Miscellaneous                                      $     1,563.00
                                                   --------------
Total                                              $    17,000.00
                                                   ==============


ITEM 26.    RECENT SALES OF UNREGISTERED SECURITIES`

Private Placements of Common Stock

On January 22, 2001, the Company signed an agreement to place up to $1.1 million
in convertible short-term debentures. Under this arrangement, the Company issued
two convertible  debentures to the debenture  holders in the principal amount of
$550,000,  pursuant to Regulation S of the Securities Act. Each debenture had an
interest rate of 6% and was issued at an original  issue  discount of 9.1%.  The
Company  issued the first  debenture on January 26, 2001 and the second on March
13, 2001. Each debenture matured 90 days from the date of issuance,  or on April
26, 2001 and June 11, 2001, respectively. Under the terms of the debentures, the
debenture  holder  could  elect at any time prior to  maturity  to  convert  the
balance  outstanding on the debentures into shares of the Company's common stock
at a fixed price that  represented a 5% discount to the average trading price of
the shares for the 10 trading days preceding the issuance of each debenture.  If
the Company chose not to redeem the debentures upon maturity,  as in the case of
the second debenture,  the conversion discount to the debenture holder increased
to 15% of the average low bid price for the Company's common stock for any three
of the 22 trading  days  prior to the date of  conversion.  Concurrent  with the
issuance  of the first  debenture,  the  Company  also  issued a warrant  to the
debenture  holder for 6,667 shares of common stock at an exercise  price of $45.
The shares  underlying the debentures and warrant were  registered  using a Form
S-3 Registration Statement. The Company received aggregate net proceeds from the
issuance of the two debentures of $925,000 during the first quarter of 2001.


                                      II-1



On January 24, 2001, the Company amended a common stock purchase  agreement with
a private investment fund for the issuance and purchase of its common stock. The
initial  closing of the  transaction  took place on November 2, 2000.  The stock
purchase agreement established what is sometimes termed an equity line of credit
or an equity  draw down  facility.  The  facility  generally  operated  with the
investor  committed to purchase up to $25 million or up to 20% of the  Company's
outstanding shares of common stock over a twelve-month  period. Once during each
draw down pricing period, the Company could request a draw, subject to a formula
based on the Company's  average stock price and average  trading  volume setting
the maximum  amount of the request for any given draw.  The amount of money that
the investor provided to the Company and the number of shares the Company issued
to the  investor  in return for that money was  settled  during a 22 day trading
period  following  the draw  down  request  based on the  formula  in the  stock
purchase agreement.  The investor received a 5% discount to the market price for
the 22 day period and the Company  received the settled amount of the draw down.
By June 30, 2001, the Company had issued 169,500 shares of its common stock, the
total number  registered  for the equity line with the  Securities  and Exchange
Commission,  at an  average  price of  $12.60  per share  and had  received  net
proceeds  of   approximately   $2,014,000   after  deducting   expenses  of  the
transaction.  There are no further  funds  available  to the Company  under this
equity line.

In August 2001,  the Company and the same private  investment  fund mentioned in
the preceding  paragraph signed a common stock purchase agreement for the future
issuance and purchase of up to $10 million of the Company's  common stock over a
twenty-four  month period.  The initial closing of the  transaction  occurred in
October 2001. Under this arrangement, the Company, at its sole discretion, could
draw down on this facility,  sometimes termed an equity line, from time to time,
and the investment fund was obligated to purchase shares of the Company's common
stock.  The purchase  price of the common stock  purchased  pursuant to any draw
down  was  equal  to 88% of the  daily  volume  weighted  average  price  of the
Company's  common stock on the applicable  date. In conjunction with the signing
of the stock  purchase  agreement,  in October 2001, the Company issued a 7-year
fully-vested  warrant to the investment fund to purchase up to 139,742 shares of
common  stock at an  exercise  price of $8.23 per share and 3,833  shares of its
common stock as additional fees to the investment fund. The private placement of
the related warrants was exempt from registration pursuant to Regulation S. From
the time the  Registration  statement  became effective in November 2001 through
the  expiration of the facility in October 2003,  the Company  issued a total of
855,776  shares of its common  stock at an average  price of $3.93 per share and
received proceeds of approximately  $3.2 million after deducting expenses of the
transactions.  At the time the facility expired,  633 registered shares remained
available for sale under this facility.

In  November  2001,  the  Company  sold  52,528  shares  of common  stock  under
Regulation D of the  Securities  Act of 1933 ("the  Securities  Act") to various
investors in a private  placement at $5.70 per share,  receiving net proceeds of
$295,000. The private placement did not include registration rights.  Therefore,
pursuant to Rule 144 of the  Securities  Act,  the  transfer  of the  securities
purchased by the  investors  was  restricted  for twelve months from the date of
purchase. Three former members of the Company's Board of Directors,  Nancy Katz,
Mark Novitch and David Collins,  purchased an aggregate of 24,038 shares of this
offering.  The proceeds of this offering were used to fund the Company's current
operations.  The purchase  transactions by the Company's Board members were on a
fair and reasonable  basis and on terms more favorable to the Company than could
have been  obtained  with  non-affiliated  parties  as a result  of the  tenuous
financial condition of the Company at the time.

In February 2002, the Company  entered into an agreement to issue up to $850,000
face  value of 12%  secured  convertible  debentures.  The  Company  issued  one
debenture in the face amount of $425,000  concurrent  with signing the agreement
and a second  debenture in the face amount of $100,000 in May 2002.  The Company
also issued  warrants to  purchase up to 459,500  shares of its common  stock in
conjunction with the convertible debenture agreement.  During the second quarter
of 2002, the investor converted principal of approximately  $60,000 plus accrued
interest   attributable  to  the  February  debenture  into  148,747  shares  of
restricted  common  stock.  During  the  first  quarter  of 2003,  the  investor
converted the remaining $465,000 of outstanding  principal plus accrued interest
and liquidated  damages resulting from delay in registration into 870,695 shares
of registered common stock. In September 2003, the investor  exercised  warrants
to purchase  456,667  shares of the  Company's  common  stock and the  Company's
received proceeds of approximately $37,000. The Company's registration statement
on Form S-2/A (No. 6) registering 1,010,000 shares of common stock for resale by
the investor  pursuant to  conversion  of the $525,000  face value of debentures
issued became  effective on February 14, 2003. The proceeds from the issuance of
the  debentures  and from the  exercise  of the  warrants  were used to  finance
operations.


                                      II-2


Subsequently,  beginning  in  May  2002,  the  Company  negotiated  several  new
financings from which,  through July 14, 2004, it has raised approximately $31.8
million in gross proceeds.  The following table  summarizes  these financings by
major  category  and  the  subsequent   table  provides  the  details  of  these
financings.

                          SUMMARY OF RECENT FINANCINGS




                                                                               Total   Restricted Shares
                                                 Gross    Net Proceeds        Shares         Outstanding
       Financing Source                       Proceeds                        Issued
       ------------------------------        ---------   --------------     ---------  ------------------
                                                                           
       8% Convertible Notes                    $ 3,232         $ 2,594      46,084.3                    -
       Other Restart Financings                    750             730       2,720.3                    -
       Mercator 12% and 10% Debentures           4,550           3,650      37,529.5                    -
          (1)
       Marr 2003 Private Placements             12,500          11,900      28,333.3                    -
       May 2004 PIPE                             9,300           8,769      23,250.0
       July 2004 PIPE                            1,488           1,384       3,720.0              3,720.0
                                             ---------    -------------    ----------   ------------------
         Total                                $ 31,820        $ 29,027     141,637.4              3,720.0
                                             =========    =============    ==========   ==================



- ------------
(1)  At July 14, 2004,  the holders have  converted all but $60,000 of principal
     of the convertible debentures issued since September 2002. Based on current
     market prices, we estimate that we would be required to issue approximately
     0.2 million additional shares of our common stock if the holders elected to
     convert the remaining principal and accrued interest of their debentures at
     this  time.  The  holders  of  these  12%  convertible  debentures  claim a
     transaction  date  which we  dispute.  These  debentures  have not yet been
     converted  pending  resolution of the transaction  date dispute,  which may
     impact the  number of shares of our stock to which the  holder is  entitled
     upon conversion. See Legal Proceedings and Note 12 to Detail of Financings.




                                      II-3




                           DETAIL OF RECENT FINANCINGS




                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- -------------------------------    -----------    ----------   ---------     ------------    --------      -----------------
                                                                                         
8% Convertible Notes                   Lesser of
Alpha Capital Aktiengesellshaft     (i) $3.00 or      $500                      5/24/02        $ 3.60         7,260.7/ $500
Stonestreet Limited Partnership      (ii) 70% of      $500                      5/24/02        $ 3.60         7,075.7/ $500
Filter International Ltd.            The average      $150                      5/24/02        $ 3.60         2,452.4/ $150
                                              of
Camden International Ltd.           The 3 lowest      $350                      5/24/02        $ 3.60         5,279.1/ $350
Domino International Ltd.             Trades for      $150                      5/24/02        $ 3.60         1,767.4/ $150
                                              30
Thunderbird Global Corporation              days      $ 75                      5/24/02        $ 3.60          1,083.1/ $75
BNC Bach International Ltd.            Preceding      $200                      5/24/02        $ 3.60         2,463.8/ $200
Excalibur Limited Partnership         conversion      $200                      5/24/02        $ 3.60         1,678.9/ $200
Standard Resources Ltd.                               $100                      5/24/02        $ 3.60         1,542.5/ $100
SDS Capital International Ltd.                        $300                      7/10/02       $ 10.20         4,189.8/ $300
Camden International Ltd.                             $100                      7/10/02       $ 10.20         1,707.9/ $100
Excalibur Limited Partnership                         $250                      7/24/02        $ 6.60         4,238.3/ $250
Stonestreet Limited Partnership                       $250                      8/21/02        $ 3.90         4,042.2/ $250
Alpha Capital Aktiengesellshaft                       $107                       5/9/03        $ 0.63         1,302.5/ $107
                                                    ------                                     -------     -----------------
   Total 8% Convertible Notes                       $3,232        $2,594                                   46,084.3/ $3,232
                                                    ======        ======                                   ================
Other Restart Financings:

10% Convertible Note
BNC Bach International Ltd.           50% of the     $ 150       $ 150        5/14/02             $4.20       2,217.8/ $150
   (Note: on 7/14/02 the            average of 3                                              $10.80 on
   maturity date was extended             lowest                                               7/14/02;
   until 12/31/02; on December       closing bid                                               $1.92 on
   27, 2002, the maturity date        prices for                                              12/27/02;
   was extended until January            22 days                                               $1.80 on
   15, 2003; on January 15,            preceding                                               1/15/03;
   2003 the maturity date was         conversion                                               $1.50 on
   extended until March 17,                                                                    3/17/03;
   2003, on March 17, 2003 the                                                                 $0.99 on
   maturity date was extended                                                                    4/2/03
   until April 4, 2003; on                                                                     $0.75 on
   April 2, 2003, the maturity                                                                  4/30/03
   date was  extended until May
   5, 2003; on April 30, 2003,
   the maturity date was
   subsequently extended until
   May 10, 2004)(5)

8% Convertible Debentures
Su So                                 80% of the     $ 100          $ 90        6/17/02         $4.20        36.7 (4)/ $100
                                    lower of the
                                         average
                                     closing bid
                                    or trade
                                    price for
                                   the 5 days
                                       preceding
                                     conversion,
                                    but not less
                                      than $3.00





                                      II-4






                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- -------------------------------    -----------    ----------   ---------     ------------    --------      -----------------
                                                                                         
Jason Arasheben                       70% of the     $ 100          $ 90        7/03/02         $8.10        15.8 (4)/ $100
                                    lower of the
                                         average
                                     closing bid
                                    or trade
                                    price for
                                   the 5 days
                                       preceding
                                     conversion,
                                    but not less
                                      than $3.00

PIPE at $1.50 per share
Careen Ltd.                            $1.50 per     $ 200         $ 200      8/28/02          $ 4.80          225.0/ N/A
Caledonia Corporate Group                  Share     $ 200         $ 200      8/28/02          $ 4.80          225.0/ N/A
    Limited                                          -----         -----                                       -----------

    Total Other Restart
      Financings                                     $ 750         $ 730                                      2,720.3/ $350
                                                     =====         =====                                      =============
 Mercator 12% and 10% Debentures
               (2)

12% Convertible Debentures
Mercator Momentum Fund, L.P.          85% of the     $ 550      $345 (6)        9/12/02         $3.00       4,866.4(4)/$550
($2,000 total commitment)             average of
                                    the 3 lowest
Mercator assigned its rights to:         trading
   Alpha Capital AG                   prices for       250           250        7/24/03        $0.115         2,673.8/ $250
   Gamma Opportunity Capital              the 20       250           250        7/24/03        $0.115         2,685.6/ $250
     Partners, LP                   trading days
   Goldplate Investment Partners       preceding       250           250        7/24/03        $0.115         2,673.8/ $250
   Marr Technologies, B.V. (11)       conversion       570           570         9/1/03        $0.498         5,181.8/ $570
                                             (8)     1,870         1,665
   Dr. Khalid Ahmed                                     50            50        10/2/03        $1.310             84.6/ $50
   Roger Suyama                                         20            20        10/2/03        $1.310             33.8/ $20
   Logisticorp, Inc.                                    20            20        10/2/03        $1.310                     -
   Southwest Resource                                                 40           (12)        $1.310
     Preservation Inc.                                  40        $1,795        10/2/03                                   -
                                                    ------        ------                                   ----------------
                                                    $2,000                         (12)                    18,199.8/ $1,940
                                                    ------                                                 ----------------

Mercator Momentum Fund, L.P.          80% of the      $300          $260       10/22/02         $3.90         0/ $300 (7)
                                      average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not less
                                      than $1.50




                                      II-5





                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- -------------------------------    -----------    ----------   ---------     ------------    --------      -----------------
                                                                                         
Mercator Momentum Fund L.P.  (10)     70% of the      $300          $245        4/29/03        $0.825       3,475.7/ $300
                                      average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $1.20

Mercator warrant                       $3.00 per        $0            $0       10/22/02         $3.90                   0
                                           share
10% Convertible Debentures
Mercator Focus Fund, L.P. (10)        80% of the    $1,000          $510        1/14/03         $1.92     7,941.1/ $1,000
                                      average of                     (6)
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $3.00

Mercator   Momentum  Fund,   L.P.     80% of the      $450          $440        1/30/03         $1.86       2,857.7/ $450
(10)                                  average of
                                    the 3 lowest
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $3.00
Mercator Focus Fund, L.P. (10)                        $400                      3/13/03         $1.47       3,428.9/ $400
Mercator Momentum Fund III, L.P.      65% of the       100                                                  1,626.3/ $100
                                      average of      $500          $400                                    5,055.2/ $500
                                    the 3 lowest      ----          ----                                    --------------
                                         trading
                                      prices for
                                     the 20
                                  trading days
                                       preceding
                                     conversion,
                                    but not more
                                      than $2.10
   Total Mercator Debentures                        $4,550        $3,650                                   37,529.5/ $4,490
                                                    ======        ======                                   ================
Marr Private Placements

     PIPE at $0.30 per share
Marr Technologies B.V. (9)(11)        $0.30 per       $2,500     $2,300        8/1/03          $0.152             8,333.3
                                          share

     PIPE at $0.50 per share
Marr Technologies B.V. (9)(11)        $0.50 per      $10,000     $9,600        9/1/03          $0.498            20,000.0
                                          share      -------     ------                                          --------
 Total Marr Private Placements                       $12,500    $11,900                                          28,333.3
                                                     =======    =======





                                      II-6





                                                                                             Calypte           Shares
Financing Type and                  Conversion      Gross         Net        Transaction     Closing         Issued/ $
Investor (1)                          Feature      Proceeds     Proceeds        Date          Price         Redeemed (3)
- -------------------------------    -----------    ----------   ---------     ------------    --------      -----------------
                                                                                         
May 2004 Private Placement
 PIPE at $0.40 per share (13)            Shares
    SF Capital Partners LP            Issued at       $4,000        $3,720       5/28/04        $0.50              10,000.0
    Marr Technologies BV              $0.40 per        3,000         2,910       5/28/04        $0.50               7,500.0
    Proximity Fund LP                    share;          500           465       5/28/04        $0.50               1,250.0
    Proximity Partners LP                5 year          500           465       5/28/04        $0.50               1,250.0
    MTB Small Cap Growth Fund        warrant at          500           465       5/28/04        $0.50               1,250.0
                                          $0.50
    MTB Multi Cap Growth Fund         per share          500           465       5/28/04        $0.50               1,250.0
    Bridges & PIPES LLC                                  300           279       5/28/04        $0.50                 750.0
                                                      ------       -------                                         --------
       Total May 2004 PIPE                            $9,300       $ 8,769                                         23,250.0
                                                      ======       =======                                         ========

July 2004 Private Placement
- ---------------------------
 PIPE at $0.40 per share (13)            Shares
    Sunrise Equity Partners, L.P.     issued at        $ 750          $698        7/9/04       $0.615               1,875.0
    Amnon Mandelbaum                  $0.40 per           80            74        7/9/04       $0.615                 200.0
    David I. Goodfriend                share; 5            8             7        7/9/04       $0.615                  20.0
                                           year
    TCMP3 Partners                   warrant at          150           140        7/9/04       $0.615                 375.0
    United Capital Partners, LLC      $0.50 per
                                          share          500           465        7/9/04       $0.615               1,250.0
                                                     -------       -------                                          -------
       Total July 2004 PIPE                          $ 1,488       $ 1,384                                          3,720.0
                                                     =======       =======                                          =======




- ----------------------

(1)  The 8% Convertible  Notes, the Other Restart  Financings,  the Mercator 12%
     and 10% Debentures and warrants,  and ther Common Stock  underlying  MTBV's
     2003  PIPE's,  the May 2004 and the  July  2004  PIPEs  were  issued  under
     exemptions  provided by Regulation S or Regulation D. With the exception of
     Marr  Technologies  B.V., which is an affiliate of the Company based on its
     August and September 2003 PIPE  investments  and  participation  in the May
     2004 PIPE, none of the entities listed above is or has been an affiliate of
     the Company.  Other than Marr  Technologies  B.V.  and SF Capital  Partners
     Ltd.,  all of the listed  investors  were subject to ownership  limitations
     restricting  their  ownership  of our stock to a  maximum  of 4.9% or 9.9%,
     depending on the specific agreement.

(2)  At July 14, 2004,  the holders have  converted all but $60,000 of principal
     of the convertible debentures issued since September 2002. Based on current
     market prices, we estimate that we would be required to issue approximately
     0.2 million additional shares of our common stock if the holders elected to
     convert the remaining principal and accrued interest of their debentures at
     this time. See also Note 12.

(3)  On  July  18,  2003,  the  registration  statement  for  52,500,000  shares
     underlying  the 8%  Convertible  Notes,  the Other Restart  Financings  and
     $1,300,000  of the  Mercator  12% and  10%  Convertible  Debentures  became
     effective.  As a result  of a  decline  in the  market  price of our  stock
     subsequent to the effective date of the July 2003  registration  statement,
     the number of shares  registered  was  insufficient  to permit the complete
     conversion of the notes and debentures into registered  shares.  The shares
     underlying  certain of the convertible  securities have become eligible for
     resale under Rule 144, and certain  investors  have availed  themselves  of
     that   eligibility  to  convert   restricted   shares  issued  pursuant  to
     conversions  into  free-trading  shares.  On July 8, 2004, the registration
     statement for 83,056,050 shares underlying Marr Private Placements, the May
     2004  PIPE,   certain  of  the   Mercator   12%   Convertible   Debentures,
     approximately  12.2 million  additional  shares  attributable to financings
     included in the July 2003  registration  statement  and  approximately  3.3
     million shares issued or issuable to vendors  consultants and other parties
     who  agreed to accept  shares of our  Common  Stock in lieu of cash  became
     effective  (File No.  333-116491). Investors in our July 2004 PIPE hold 3.7
     million  restricted  shares of our Common  Stock.  We are  registering  the
     shares of Common Stock  underlying the July 2004 PIPE on a cost-free  basis
     to the  holders  of said  shares  of  Common  Stock  in  this  registration
     statement.

(4)  Includes fee shares.

(5)  On April 30, 2003,  when the market price of the common stock was $0.75, we
     and BNC Bach amended the conversion  price to eliminate a conversion  price
     ceiling of $1.50 per share and to increase the discount  applicable  to the
     conversion  price from 40% to 50%. In return for this  modification  of the
     conversion  price, BNC Bach agreed to extend the maturity of the note until
     May 10, 2004. BNC Bach subsequently converted the outstanding principal and
     accrued interest into shares of our common stock.


                                      II-7


(6)  Reflects a 10% cash commitment fee on the entire $2 million commitment paid
     to The Mercator  Group less  additional  fees and  expenses.  We registered
     shares  underlying  $1,300,000 of the total  $2,000,000  commitment in July
     2003 and the shares  underlying the final  $700,000 of this  commitment are
     included in this registration statement.

(7)  In  conjunction  with  the  issuance  of the  $1  million  10%  convertible
     debenture to Mercator  Focus Fund,  L.P., we used the proceeds to repay the
     $0.3 million outstanding principal balance of the 12% convertible debenture
     previously  issued to Mercator  Momentum Fund, L.P. plus accrued  interest.
     The balance of costs incurred represents transactional and legal fees.

(8)  On March 31, 2003, when the market price of our Common Stock was $0.885, we
     amended the conversion price to eliminate a conversion price floor of $1.50
     per share in  return  for an  extension  of time in which to  register  the
     shares of common stock underlying the various Mercator financings.

(9)  The  Securities  Purchase  Agreements  for both  transactions  between  the
     Company  and Marr  Technologies  B.V.  require  that we  provide  cost-free
     registration rights to Marr; however, Marr is subject to a one-year lock-up
     provision  following  the  transaction  date  with  respect  to the  shares
     purchased.

(10) On January 14,  2004,  when the market price of our common stock was $0.60,
     we extended the maturity  date of the following  debentures  until July 14,
     2004:

     o    10%  Convertible  Debenture  dated January 14, 2003 issued to Mercator
          Focus Fund, LP

     o    10%  Convertible  Debenture  dated January 30, 2003 issued to Mercator
          Momentum Fund, LP

     o    10%  Convertible  Debentures  dated  March 13, 2003 issued to Mercator
          Focus Fund, and

     o    12%  Convertible  Debenture  dated  April 29,  2003 issued to Mercator
          Momentum Fund, LP.

In return for the  extension  of the  maturity  dates,  we have agreed to pay an
additional  extension fee equal to 2% of the outstanding  principal  balance per
month  until the  earlier  of the  extended  maturity  date or  conversion.  The
extension  fee is  payable  1% in cash and 1% in  shares  of our  common  stock.
Additionally,  we agreed to file a registration  statement  including the shares
potentially  applicable to the conversion of the outstanding  debenture balances
by no later than April 29, 2004. On April 23, 2004, when the market price of our
Common  Stock was $0.625,  we and the various  Mercator  Funds  agreed to extend
until May 14, 2004 the period for filing the  registration  statement  including
the shares issued or potentially issuable upon conversion.  On May 7, 2004, when
the market  price of our common  stock was $0.48 per share,  we and the  various
Mercator  Funds  agreed  to  further  extend  from  May 14,  2004  until 21 days
following  the closing of a private  placement  of equity  financing of at least
$5,000,000,  but in any case to no later than June 30, 2004, the period in which
we are required to file a registration  statement including shares of our common
stock issued or potentially issuable upon conversion.  Such shares were included
in our June 15, 2004  registration  statement,  which was declared  effective on
July 8, 2004. All of the subject convertible  debentures were converted prior to
the extended maturity date.

(11) On January 23, 2004,  when the market price of our common stock was $0.695,
     we and Marr agreed to extend the registration rights period attributable to
     5,181,818  shares of our common  stock  issued in  conjunction  with Marr's
     conversion of $570,000  principal  amount of the Company's 12%  Convertible
     Debentures  from  February  27, 2004 to April 29,  2004.  In return for the
     extension,  we agreed to  include  in our next  registration  statement  an
     aggregate of  28,333,333  shares of our common  stock  purchased by Marr in
     PIPE  transactions in the third quarter of 2003. On April 23 2004, when the
     market price of the Common Stock was $0.625, we MTBV agreed to extend until
     May 14, 2004 the period for filing the registration statement including the
     shares issued to MTBV upon conversion of the 12% convertible  debenture and
     in the 2003 PIPE transactions.  On May 7 2004, when the market price of our
     common  stock was $0.48 per share,  MTBV agreed to further  extend from May
     14,  2004 until 21 days  following  the closing of a private  placement  of
     equity financing of at least  $5,000,000,  but in any case to no later than
     June 30, 2004,  the period in which we are required to file a  registration
     statement  including  shares  of our  common  stock  issued  to  MTBV  upon
     conversion  of  the  12%  convertible   debenture  and  in  the  2003  PIPE
     transactions.  Such shares were  included in our June 15, 2004 registration
     statement, which was declared effective on July 8, 2004.

(12) The holder  claims an earlier  transaction  date,  which we  dispute.  This
     debenture has not yet been converted Assuming  immediate  conversion at the
     earlier,  disputed  transaction  date, the number of shares of common stock
     issuable  to  Logisticorp  and  Southwest  Resource  Preservation  would be
     213,903 and 427,807, respectively.  While not necessarily agreeing to issue
     the  number  of  shares  calculated  as  issuable  based  on  the  disputed
     transaction  date, we  registered  that number of shares of Common Stock in
     our June 15, 2004 registration statement pending resolution of the dispute.
     The ultimate  resolution of the transaction  date dispute may determine the
     number  of  shares  of our  stock to which  the  holder  is  entitled  upon
     conversion. See Legal Proceedings.


                                      II-8


(13) The shares issued  pursuant to the May 2004 PIPE and the July 2004 PIPE and
     the  related  warrants  for each have an  anti-dilution  feature  that will
     require  us to issue  additional  shares to the PIPE  investors  and modify
     their warrants if we subsequently  issue  additional  equity at a per share
     price of less  than  $0.40  for a period  of one year  from the  respective
     closing  dates,  except  under the  provisions  of  previously  outstanding
     convertible debt, option plans, or option or warrant agreements.

On November  13,  2003,  when the market price of our common stock was $0.88 per
share, we and Marr, our largest stockholder,  entered into an agreement in which
Marr agreed to provide us up to an  aggregate of  $10,000,000  (the "Marr Credit
Facility")  pursuant  to  promissory  notes  that  we may  issue  to  Marr on an
as-needed  basis (the  "Notes").  Each Note will bear interest at the rate of 5%
per annum and will have a 12-month term. The Marr Credit  Facility was available
during the period beginning on February 28, 2004 and ending on May 31, 2004. The
aggregate  amount  available  under the Marr Credit  Facility is  proportionally
reduced by the amount of any equity financing obtained by the Company during the
term of the Marr  Credit  Facility.  Marr has  participation  rights in any such
equity  financing  on the same  terms as the other  investors.  The Marr  Credit
Facility provided for earlier  termination as of March 31, 2004, if we failed to
have our common  stock  listed on an  established  stock  exchange by that date.
Moreover,   upon  the  failure  to  obtain  such  stock  exchange  listing,  any
outstanding  Notes would be due and payable on April 30, 2004. As  consideration
for the Marr Credit Facility,  we issued to a party designated by Marr a warrant
to purchase 375,000 shares of our common stock at an exercise price of $0.80 per
share.  The  warrant is  immediately  exercisable  and  expires  two years after
issuance on November 12, 2005.

On March 19,  2004,  when the market  price of our  common  stock was $0.575 per
share,  we and Marr amended the Marr Credit  Facility to increase the  aggregate
amount  available under the Marr Credit Facility to $15,000,000 and to eliminate
the  termination  provision  upon  failure to have the common stock listed on an
established  stock exchange by March 31, 2004. As additional  consideration  for
the amendment of the Marr Credit  Facility,  we issued to a party  designated by
Marr an additional  warrant to purchase 400,000 shares of our common stock at an
exercise price of $0.46 per share.  This warrant is immediately  exercisable and
expires two years from its date of issuance on March 18, 2006.

On May 26, 2004,  when the market price of the Common Stock was $0.46 per share,
we and MTBV again amended the Marr Credit Facility whereby MTBV has committed to
purchase up to $5,000,000 of Promissory Notes that we may issue through December
31, 2004. Any Notes issued pursuant to this second  amendment will bear interest
at 9% per annum and will have a maturity  date of May 31, 2005.  The  $5,000,000
amount  available  under the amended Marr Credit Facility will be reduced by the
amount of any equity  financing  obtained by the Company  after the May 26, 2004
effective  date of the second  amendment  and  through  the  December  31,  2004
commitment  period,  exclusive  of  the  proceeds  from  the  May  2004  Private
Placement.  Accordingly,  the commitment has been reduced to approximately  $3.6
million as a result of the closing of the July 2004 PIPE.  At July 14, 2004,  we
have issued no Notes under the Marr Credit Facility.  As  consideration  for the
extension of the commitment period reflected in the second amendment of the Marr
Credit  Facility,  we issued to MTBV a warrant to purchase 500,000 shares of our
Common  Stock  at an  exercise  price  of  $0.40  per  share.  This  warrant  is
immediately  exercisable  and expires two years from its date of issuance on May
26, 2006. The shares  underlying  these three warrants were included in our June
15, 2004 registration statement.


Warrants, Options and Stock Grants

Since  January  2002,  the  Company  has  entered  into  various  contracts  and
agreements with consultants who have agreed to accept payment for their services
in the form of warrants,  options and/or stock grants.  The Company has obtained
various services under these arrangements,  including legal, financial, business
advisory,  and other services including business  introductions and arrangements
with respect to potential  domestic and international  product placement and the
development of potentially  synergistic  relationships  with appropriate  public
service or other governmental and  non-governmental  organizations.  The Company
has generally issued the warrants at a discount to the then-current market price
and has registered the shares underlying the warrants,  options and stock grants
on Form S-8 Registration  Statements for resale by the consultants.  The Company
has, since January 2002,  issued  approximately 9.6 million shares of its common
stock as a result of warrant or option  exercises  and stock  grants  related to
these consulting agreements, of which approximately 7.9 million shares have been
issued during 2003.


                                      II-9


In May 2002,  Calypte issued warrants and options to purchase  633,333 shares of
its common stock under agreements with consultants to perform legal,  financial,
business  advisory  and  other  services  associated  with  the  restart  of its
operations.  The warrants were issued at $0.45 per share on May 9, 2002 when the
market price of our common stock was $0.90 per share.  The option was granted at
$0.90 per share on May 10,  2002,  when the market price of our common stock was
$0.90 per share. All of the warrant and option grants were  non-forfeitable  and
fully-vested  at the date of  issuance  and were  registered  for  resale by the
consultants  under Form S-8.  The  consultants  exercised  all the  warrants and
options and Calypte issued 633,333 shares and received proceeds of $292,500. All
but one of the consulting  agreements  discussed  above expired in August and we
have entered into new agreements for legal,  financial,  business advisory,  and
other  services  including   introductions  and  arrangements  with  respect  to
potential  domestic  and  international   product   development  of  synergistic
relationships with appropriate public service  organizations.  In November 2002,
Calypte issued warrants to purchase 950,000 shares of our common stock and stock
grants for 70,000  shares of our stock to  consultants  under the terms of these
new  agreements.  The Company  issued  350,000  warrants at an exercise price of
$1.50 per share on  November  1, 2002,  when the  market  price of our stock was
$4.20 per  share.  The  Company  issued an  additional  600,000  warrants  at an
exercise  price of $1.50 on  November  20,  2002,  when the market  price of our
common  stock was $2.70.  All of the  warrant  grants  were  non-cancelable  and
fully-vested  at the date of  issuance  and were  registered  for  resale by the
consultants  under Form S-8. By February 2003, the consultants had exercised all
the warrants and the Company had received  aggregate proceeds of $1.425 million.
The Company  issued 986,667 shares of its common stock pursuant to the exercises
of the November 2002 warrant and stock grants.

In January  and  February  2003,  the Company  entered  into new  contracts  and
extended  certain other contracts with existing  consultants to perform services
as described above. On February 14, 2003, when the market price of the Company's
stock was $2.01, the Company issued warrants  exercisable at $1.50 per share and
stock  grants  for an  aggregate  of  975,216  shares  of its  common  stock  as
compensation  for  these  services.   The  warrants  were   non-cancelable   and
fully-vested  at the date of issuance.  By May 31,  2003,  the  consultants  had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of $0.8 million.

During  March 2003,  when the market  price of the  Company's  stock ranged from
$1.32 to $1.50 per share,  the Company issued warrants  exercisable at $0.75 per
share and stock  grants  for an  aggregate  of  1,350,400  as  compensation  for
services under new or extended  contracts.  The warrants were non-cancelable and
fully-vested  at the date of issuance.  By May 31,  2003,  the  consultants  had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of approximately $0.9 million.

In April 2003, when the price of the Company's stock ranged from $0.81 to $0.885
per share,  the Company  entered into  additional  contracts,  extended  certain
contracts,  and modified  certain other contracts with existing  consultants who
agreed to settle a portion of the  outstanding  balance due for  services  under
their  contracts in stock.  The Company  issued  warrants at $0.75 per share and
stock  grants  for an  aggregate  of  1,490,600  shares of its  common  stock as
compensation or settlement for these services.  The warrants were non-cancelable
and  fully-vested at the date of issuance.  By May 31, 2003, the consultants had
exercised warrants to purchase all of the shares granted to them and the Company
had received proceeds of approximately $0.1 million.

In May 2003,  when the price of the Company's stock ranged from $0.552 to $0.576
per share,  the Company  again  entered  into new  contracts,  extended  certain
contracts,  and modified  certain other contracts with existing  consultants who
agreed to settle a portion of the  outstanding  balance due for  services  under
their  contracts in shares of stock.  The Company  issued  warrants at $0.30 per
share and stock grants for an aggregate of 2,080,305  shares of its common stock
as   compensation   or  settlement  for  these   services.   The  warrants  were
non-cancelable and fully-vested at the date of issuance.  By September 30, 2003,
the consultants had exercised  warrants to purchase all of the shares granted to
them and the Company had received proceeds of approximately $0.5 million.

In July 2003,  when the price of the Company's  stock ranged from $0.11 to $0.30
per share, the Company extended a contract for consulting and other services and
granted the consultant a warrant to purchase  722,500 shares of its common stock
at 50% of the closing  market price on the date of any exercise as  compensation
under the  contract.  The  warrant was  granted as  fully-vested  and expired on
September  30, 2003.  By September 30, 2003,  the  consultant  had exercised the
entire  warrant at prices  ranging from $0.08 to $0.61 per share and the Company
had received proceeds of approximately $0.4 million.  Also during July 2003, the
Company issued stock grants to consultants for an aggregate of 356,344 shares of
its common stock as compensation under their contracts.


                                     II-10


On August 20, 2003,  when the price of the Company's  stock was $0.18 per share,
the Company issued consulting contracts to two new consultants pursuant to which
it issued warrants for 100,000 shares each,  exercisable at $0.18 per share. The
warrants  were  non-cancelable  and  fully-vested  at the date of  issuance.  At
December 31, 2003, the consultants had exercised none of the warrants.

In September  2003,  when the price of the Company's  stock ranged from $0.50 to
$1.80 per share, the Company issued an aggregate of 800,000 shares of its common
stock to  consultants  and other service  providers who agreed to take shares of
stock in lieu of cash as compensation under their contracts.

In October and November 2003,  when the price of the Company's stock ranged from
$0.53 to $1.65 per share,  the Company  issued an aggregate of 125,000 shares of
its common stock to consultants  and other service  providers who agreed to take
shares of stock in lieu of cash as compensation under their contracts.

In February 2004, when the price of the Company's stock was $0.67 per share, the
Company issued 500,000 shares of its common stock to a consultant who had agreed
to accept  shares of stock as a portion of its  compensation  under a consulting
agreement.  The Company issued  approximately  67,000  additional  shares of its
common stock during the first  quarter of 2004 to another  consultant  under the
terms of a long-term consulting agreement.

In May 2004,  when the price of the  Company's  stock was $0.465 per share,  the
Company  issued  warrants to purchase  150,000  shares of its common stock at an
exercise  price of $0.50 as a portion  of the  compensation  under a  consulting
contract.  The warrants were exercisable  immediately and remain so for a period
of five years.

To conserve cash and to obtain goods and  services,  the Company may continue to
issue  options and warrants at discounts to market or issue direct stock grants.
In the event that the Company  issues  additional  options and  warrants,  it is
anticipated that the securities will contain cost-free registration rights which
will be granted to holders of the  options and  warrants,  and that there may be
dilution to the Company's existing stockholders.


                                     II-11




ITEM 27.    EXHIBITS.

The exhibits filed as part of this Registration Statement are as follows:


2.1      Asset  Purchase  Agreement,  dated as of  November  18,  1998,  between
         Calypte and Cambridge;  incorporated by reference from an exhibit filed
         with the Company's Report on Form 8-K dated December 16, 1998.

3.1      Bylaws of the Registrant,  as amended on January 19, 2004. incorporated
         by reference from an exhibit filed with the Company's  Quarterly report
         on Form 10-QSB/A (No. 1) dated January 29, 2004.

3.2      Restated   Certificate   of   Incorporation   of   Calypte   Biomedical
         Corporation, a Delaware corporation,  filed July 31, 1996; incorporated
         by reference  from an exhibit filed with the  Company's  Report on Form
         10-K dated March 28, 1997.

3.3      Certificate  of Amendment of the Amended and  Restated  Certificate  of
         Incorporation  of  Calypte  Biomedical   Corporation  effective  as  of
         February 14, 2003  incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-K dated March 26, 2003.

3.4      Certificate  of Amendment of the Amended and  Restated  Certificate  of
         Incorporation of Calypte  Biomedical  Corporation,  effective as of May
         27, 2003.

3.5      Certificate of Correction of Calypte Biomedical Corporation,  effective
         as of May 28, 2003.

4.1      Rights Agreement  between the Registrant and Chase Mellon  Shareholders
         L.L.C.  as Rights  Agents  dated  December 15,  1998;  incorporated  by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated December 16, 1998.

5.1*     Opinion of Baratta & Goldstein.

10.1     Form of  Indemnification  Agreement between the Company and each of its
         directors and officers, as amended January 19, 2004.

10.2     1991  Incentive  Stock Plan;  incorporated  by reference  from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.3     1995  Director  Option  Plan,  as  amended   effective  May  20,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-8 (File No. 333-106389) dated June 23,
         2003.

10.4     1995  Employee  Stock  Purchase  Plan,  amended  as of  May  20,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-8 (File No. 333-106389) dated June 23,
         2003.

10.9     Standard Form Lease  1255-1275  Harbor Bay Parkway  Harbor Bay Business
         Park between  Commercial  Center Bank and the  Registrant,  dated as of
         August 22, 1992; incorporated by reference from exhibits filed with the
         Company's Registration Statement on Form S-1 (File No. 333-04105) filed
         on May 20, 1996,  as amended to June 25,  1996,  July 15, 1996 and July
         26, 1996.

10.15^   License  Agreement  between the Registrant  and New York  University,
         dated as of August 13, 1993;  incorporated  by reference  from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.16    First  Amendment to License  Agreement  between the  Registrant and New
         York  University,  dated  as  of  January  11,  1995;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.


                                     II-12


10.17    Second  Amendment to License  Agreement  between the Registrant and New
         York  University,  dated  as  of  October  15,  1995;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996..

10.18^   Third Amendment to License  Agreement  between the Registrant and New
         York  University,  dated  as  of  January  31,  1996;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.

10.21^   Sublicense  Agreement  between the Registrant  and Cambridge  Biotech
         Corporation, dated as of March 31, 1992; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.22^   Master  Agreement  between  the  Registrant  and  Cambridge  Biotech
         Corporation, dated as of April 12, 1996; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.23^   Sub-License  Agreement  between the Registrant and Cambridge  Biotech
         Corporation, dated as of April 12, 1996; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.24^   Agreement between the Registrant and Repligen  Corporation,  dated as
         of March 8, 1993;  incorporated  by reference  from exhibits filed with
         the Company's  Registration  Statement on Form S-1 (File No. 333-04105)
         filed on May 20, 1996,  as amended to June 25, 1996,  July 15, 1996 and
         July 26, 1996.

10.25^   Non-Exclusive  License Agreement between the Registrant and The Texas
         A&M University System, dated as of September 12, 1993;  incorporated by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.

10.33    Form of Option Agreement for Stockholders of Pepgen Corporation,  dated
         as of October 12, 1995;  incorporated  by reference from exhibits filed
         with  the  Company's  Registration  Statement  on Form  S-1  (File  No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.41    Second  Addendum to Lease between the Registrant and Commercial  Center
         Bank dated as of July 21, 1997; incorporated by reference from exhibits
         filed with the Company's Report on Form 10-K dated March 25, 1998.

10.51    Non-Exclusive  Patent and License  Agreement between the Registrant and
         Public Health Service,  dated June 30, 1999;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report on Form 10-Q dated
         November 15, 1999.

10.55    Master  Lease  Agreement  between  Aquila   Biopharmaceuticals,   Inc.,
         Landlord,  and Biomerieux Vitek, Inc., Tenant,  dated as of October 22,
         1996;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 10-K dated March 30, 2000.

10.56    First  Amendment  to  Lease  between  Aquila  Biopharmaceuticals,  Inc.
         Landlord,  and Biomerieux Vitek, Inc.,  Tenant,  dated October 2, 1997;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 30, 2000.

10.57    Sublease   Agreement   between   Registrant   and   Cambridge   Biotech
         Corporation,  assignee of  Biomerieux,  Inc.  dated as of December  17,
         1998;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 10-K dated March 30, 2000.


                                     II-13


10.58    Sublease   Agreement   between   Registrant   and   Cambridge   Biotech
         Corporation,  sub-lessee  of DynCorp,  dated as of December  17,  1998;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 30, 2000.

10.62    Employment Agreement between the Registrant and Nancy E. Katz, dated as
         of October 18, 1999;  incorporated  by reference  from an exhibit filed
         with the Company's Report on Form 10-K dated March 30, 2000.

10.66    Restated  Technology Rights Agreement between  Registrant and Howard B.
         Urnovitz,  Ph.D.  dated as of March 1, 2000;  incorporated by reference
         from an exhibit filed with the Company's  Report on Form 10-Q dated May
         12, 2000.

10.67    Technology Rights Agreement between  Registrant and Chronix  Biomedical
         dated as of March 1, 2000;  incorporated  by reference  from an exhibit
         filed with the Company's Report on Form 10-Q dated May 12, 2000.

10.70^   Distribution Agreement between the Registrant and Biobras S.A., dated
         as of May 11, 2000;  incorporated  by reference  from an exhibit  filed
         with the Company's Report on Form 10-Q dated August 10, 2000.

10.73^   Fourth Amendment to the License  Agreement between the Registrant and
         New  York  University,  dated  as of  June  1,  2000;  incorporated  by
         reference from an exhibit filed with the Company's  Report on Form 10-Q
         dated August 10, 2000.

10.74    2000 Equity Incentive Plan, amended as of May 20, 2003; incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-8 (File No. 333-106389) dated June 23, 2003.

10.79    Convertible  Debentures  and Warrants  Purchase  Agreement  between the
         Registrant  and  AMRO  International,  S.A.  dated  January  22,  2001;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration  Statement on Form S-3 (File No. 333-58960) filed on April
         13, 2001.

10.84    Stock Purchase  Warrant to purchase common stock dated January 24, 2001
         issued to Townsbury Investments Limited; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-2
         (File No.  333-54316) filed on January 25, 2001, as amended on February
         9, 2001.

10.85    Common  Stock  Purchase   Agreement   between   Calypte  and  Townsbury
         Investments  Limited dated November 2, 2000;  incorporated by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-2 (File No.  333-54316)  filed on  January  25,  2001,  as amended on
         February 9, 2001.

10.86    Registration Rights Agreement between Calypte and Townsbury Investments
         Limited  dated  November 2, 2000;  incorporated  by  reference  from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-2
         (File No.  333-54316) filed on January 25, 2001, as amended on February
         9, 2001.

10.87    Escrow  Agreement  among  Calypte,  Townsbury  Investments  Limited and
         Epstein,  Becker & Green, P.C. dated November 2, 2000;  incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No.  333-54316)  filed on January 25, 2001,
         as amended on February 9, 2001.

10.88    Amendment  to Common  Stock  Purchase  Agreement  between  Calypte  and
         Townsbury  Investments Limited dated January 24, 2001;  incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No.  333-54316)  filed on January 25, 2001,
         as amended on February 9, 2001.

10.91    Third Addendum to Lease between the Registrant and Gee-Aspora LLC dated
         as of October 31, 2001; incorporated by reference from an exhibit filed
         with the Company's Report on Form 10-K dated March 11, 2002.


                                     II-14


10.92    Registration   Rights   Agreement   between  the  Registrant  and  AMRO
         International,  S.A. dated January 22, 2001;  incorporated by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-3 (File No. 333-58960) filed on April 13, 2001.

10.93    Escrow Agreement  between the Registrant and AMRO  International,  S.A.
         dated January 22, 2001; incorporated by reference from an exhibit filed
         with  the  Company's  Registration  Statement  on Form  S-3  (File  No.
         333-58960) filed on April 13, 2001.

10.94    Stock  Purchase  Warrant  to  purchase  common  stock  issued  to  AMRO
         International, S.A. on January 24, 2001; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-3
         (File No. 333-58960) filed on April 13, 2001.

10.95    6% Convertible Debenture in the principal amount of $550,000, due April
         26,  2001,  issued  to  AMRO  International,  S.A.  ;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-3 (File No. 333-58960) filed on April 13, 2001

10.96    6% Convertible Debenture in the principal amount of $550,000,  due June
         11,  2001,  issued  to  AMRO  International,  S.A.  ;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-3 (File No. 333-58960) filed on April 13, 2001

10.97    Common  Stock  Purchase   Agreement   between   Calypte  and  Townsbury
         Investments  Limited dated August 23, 2001;  incorporated  by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-2 (File No. 333-72268) filed on October 26, 2001.

10.98    Registration Rights Agreement between Calypte and Townsbury Investments
         Limited  dated  August 23,  2001;  incorporated  by  reference  from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-2
         (File No. 333-72268) filed on October 26, 2001.

10.99    Escrow Agreement among Calypte,  Townsbury  Investments Limited and New
         York  Escrow  Services,  LLC dated  August 23,  2001;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No. 333-72268) filed on October 26, 2001.

10.100   Stock Purchase  Warrant to purchase Common Stock dated October 19, 2001
         issued to Townsbury Investments Limited; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-2
         (File No. 333-72268) filed on October 26, 2001.

10.101   Securities  Purchase  Agreement  between  the  Registrant  and  Bristol
         Investment  Fund,  Ltd. Dated as of February 11, 2002;  incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated February 15, 2002.

10.102   Registration  Rights  Agreement  between  the  Registrant  and  Bristol
         Investment  Fund,  Ltd. Dated as of February 11, 2002;  incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated February 15, 2002.

10.103   Security  Agreement between the Registrant and Bristol Investment Fund,
         Ltd. Dated as of February 11, 2002;  incorporated  by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.104   Form of Secured  Convertible  Debenture  Securities  Purchase Agreement
         between the Registrant and Bristol  Investment  Fund,  Ltd. Dated as of
         February 11, 2002; incorporated by reference from an exhibit filed with
         the Company's Report on Form 8-K dated February 15, 2002.

10.105   Class A Stock Purchase Warrant for 56,667 shares of Common Stock issued
         to Bristol  Investment  Fund,  Ltd.;  incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.106   Class B Stock  Purchase  Warrant  for  400,000  shares of Common  Stock
         issued to Bristol Investment Fund, Ltd.; incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated  February
         15, 2002.


                                     II-15


10.107   Stock  Purchase  Warrant  for 283  shares  of  Common  Stock  issued to
         Alexander Dunham Capital Group, Inc.; incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.108   Stock  Purchase  Warrant  for 2,550  shares of Common  Stock  issued to
         Bristol Capital, LLC. ; incorporated by reference from an exhibit filed
         with the Company's Report on Form 8-K dated February 15, 2002.

10.109   Form of Common Stock  Purchase  Agreement  between the  Registrant  and
         certain  Purchasers dated November 13, 2001;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report on Form 10-K dated
         March 11, 2002.

10.110   Form of Common Stock Purchase  Agreement  with certain trade  creditors
         issued pursuant to a private placement  completed on February 12, 2002;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 11, 2002.

10.111   Form of Subscription Agreement and 8% Convertible Note; incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated June 3, 2002.

10.112   Form of Subscription  Agreement and 8% Convertible Note Issued July 17,
         2002 by  Registrant;  incorporated  by reference  from an exhibit filed
         with the Company's Report on Form 10-Q dated August 14, 2002.

10.113   Employment  Agreement  between the  Registrant  and Anthony J.  Cataldo
         dated May 10, 2002;  incorporated  by reference  from an exhibit  filed
         with the Company's Report on Form 10-Q dated August 14, 2002.

10.114   Amendment  to  Non-Exclusive   Patent  and  License  Agreement  between
         Registrant and Public Health Service, dated April 5, 2002; incorporated
         by reference  from an exhibit filed with the  Company's  Report on Form
         10-Q dated August 14, 2002.

10.115   Investment  Commitment   Arrangement  with  Cataldo  Investment  Group;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 8-K dated November 12, 2002.

10.116   Term  Sheet  for  Mercator  Momentum  Fund LP and Form of  Registration
         Rights Agreement;  incorporated by reference from an exhibit filed with
         the Company's Report on Form 8-K dated November 12, 2002.

10.117   Form  of  Subscription  Agreement  under  Regulation  S  for  Caledonia
         Corporate Group Ltd. And Careen Ltd.; incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated November 12,
         2002

10.118   Bi-Coastal Consulting, Inc. Agreements;  incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated  November
         12, 2002.

10.119   Employment  Agreement  between the Registrant and Nancy E. Katz,  dated
         October 31, 2002;  incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-Q dated November 14, 2002.

10.120   12%   Convertible   Debenture   Agreement   and  related   Warrant  and
         Registration  Rights  Agreement  dated as of October 22,  2002  between
         Registrant and Mercator Momentum Fund, L.P.;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report  on Form 8-K dated
         December 10, 2002.

10.121   Distribution  Agreement  between the Registrant and Zhong Yang Pute Co.
         dated as of October 10, 2002; incorporated by reference from an exhibit
         filed with the Company's Report on Form 10-Q/A (No.3) dated February 4,
         2003.

10.122   Amendment to Agreement with Mercator Momentum Fund dated as of December
         23,  2002;  incorporated  by reference  from an exhibit  filed with the
         Company's Report on Form 8-K/A dated January 21, 2003.

10.123   10% convertible  Debenture and related  Registration  Rights  Agreement
         dated as of January 14, 2003  between  Registrant  and  Mercator  Focus
         Fund,  L.P.;  incorporated  by reference from an exhibit filed with the
         Company's Report on Form 8-K dated January 21, 2003.


                                     II-16


10.124   Distribution and Usage Memorandum of Understanding  between  Registrant
         and Safe Blood for Africa  Foundation,  dated as of December  10, 2002;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-2/A (No. 5) (File No. 333-84660) dated
         February 4, 2003.

10.125   Employment Agreement between Registrant and Richard D. Brounstein dated
         as of January 1, 2003;  incorporated by reference from an exhibit filed
         with the Company's Annual Report on Form 10-K dated March 26, 2003.

10.126   Letter  Agreement  between  Registrant and Nancy E. Katz dated February
         14,  2003;  incorporated  by reference  from an exhibit  filed with the
         Company's Annual Report on Form 10-K dated March 26, 2003.

10.127   Letter Agreement between  Registrant and Bristol  Investment Fund, Ltd.
         Dated  February 28,  2003;  incorporated  by reference  from an exhibit
         filed with the  Company's  Annual  Report on Form 10-K dated  March 26,
         2003.

10.128   2003 Non-Qualified Stock Option Plan; incorporated by reference from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-8
         (File No. 333-106387) dated June 23, 2003.

10.129   Consulting   Agreement  between  Registrant  and  Junebug   Enterprises
         effective  as of April 23,  2003;  incorporated  by  reference  from an
         exhibit filed with the Company's Report on Form 10-QSB dated August 14,
         2003.

10.130   Employment  Agreement between  Registrant and Jay Oyakawa,  dated as of
         August 12, 2003;  incorporated  by reference from an exhibit filed with
         the Company's Report on Form 10-QSB dated August 14, 2003.

10.131   Separation  Agreement,  Mutual  Release  and  Waiver of Claims  between
         Registrant  and  Nancy  E.  Katz,   effective  as  of  June  27,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-QSB dated August 14, 2003.

10.132   Subscription  Agreement  between  Registrant and Marr Technologies B.V.
         dated as of August 1, 2003  incorporated  by reference  from an exhibit
         filed with the Company's Report on Form 10-QSB dated August 14, 2003.

10.133   Subscription  Agreement  between the Company and Marr Technologies B.V.
         for  20,000,000  shares of  Registrant's  Common Stock dated August 28,
         2003;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 8-K dated September 12, 2003.

10.134   Agreement for  Commitment to Purchase  Aggregate of  $10,000,000  of 5%
         Promissory Notes between the Company and Marr  Technologies  B.V. dated
         November 13, 2003; incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-QSB dated November 14, 2003.

10.135   Separation  Agreement  and Release  between the Company and Jay Oyakawa
         dated January 19, 2004; incorporated by reference from an exhibit filed
         with the  Company's  Report on Form  10-QSB/A (No. 1) dated January 29,
         2004.

10.136   Employment   Agreement  between  the  Company  and  J.  Richard  George
         effective as of January 20,  2004;  incorporated  by reference  from an
         exhibit  filed with the  Company's  Annual  Report on Form 10-KSB dated
         March 29, 2004.

10.137   Lease Agreement between the Company and ARE-1500 East Gude LLC dated as
         of March 1, 2004;  incorporated by reference from an exhibit filed with
         the Company's Annual Report on Form 10-KSB dated March 29, 2004.

10.138   Amendment  No. 1 to Agreement for  Commitment to Purchase  Aggregate of
         $10,000,000  of 5%  Promissory  Notes  between  the  Company  and  Marr
         Technologies  B.V. dated March 19, 2004  incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated March 19,
         2004.


                                     II-17


10.139   Common  Stock  Purchase  Warrant to Purchase  400,000  Shares of Common
         Stock  between  the Company  and Boodle  Hatfield  dated March 19, 2004
         incorported  by reference  from filed as an exhibit with the  Company's
         Report on Form 8-K dated March 19, 2004

10.140   Amendment No. 1 to Separation Agreement and Release between the Company
         and Jay Oyakawa dated February 25, 2004  incorporated by reference from
         filed as an exhibit with the Company's  Quarterly Report on Form 10-QSB
         dated May 13, 2004.

10.141   Form of  Securities  Purchase  Agreement  between  the  Company and the
         investors in the May 2004 PIPE financing incorporated by reference from
         an exhibit filed with the Company's Report on Form 8-K on June 1, 2004.

10.142   Form of  Registration  Rights  Agreement  between  the  Company and the
         investors in the May 2004 PIPE financing  incorported by reference from
         an exhibit filed with the Company's Report on Form 8-K on June 1, 2004.

10.143   Form of Warrant  between the Company and the  investors in the May 2004
         PIPE financing  incorported by reference from an exhibit filed with the
         Company's Report on Form 8-K on June 1, 2004

10.144   Amendment  No. 2 to Agreement for  Commitment to Purchase  Aggregate of
         $10,000,000  of 5%  Promissory  Notes  between  the  Company  and  Marr
         Technologies  B.V.  effective May 26, 2004,  incorporated  by reference
         from an exhibit filed with the Company's  report on Form 8-K on June 3,
         2004.

10.145   Common  Stock  Purchase  Warrant to Purchase  500,000  Shares of Common
         Stock  issued by the Company to Marr  Technologies  B.V.  dated May 26,
         2004,  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's report on Form 8-K on June 3, 2004.

10.146   2004 Incentive  Plan,  incorporated  by reference from an exhibit filed
         with the Company's Registration Statement on Form S-8 on June 25, 2004.

10.147   Form of  Securities  Purchase  Agreement  between  the  Company and the
         investors  in the July 2004 PIPE  financing  incorporated  by reference
         from an exhibit filed with the Company's Report on Form 8-K on July 13,
         2004.

10.148   Form of  Registration  Rights  Agreement  between  the  Company and the
         investors in the July 2004 PIPE financing incorported by reference from
         an  exhibit  filed  with the  Company's  Report on Form 8-K on July 13,
         2004.

10.149   Form of Warrant  between the Company and the investors in the July 2004
         PIPE financing  incorported by reference from an exhibit filed with the
         Company's Report on Form 8-K on July 13, 2004.

15.1     Letter  from  Odenberg  Ullakko  Muranishi & Co. LLP dated June 8, 2004
         regarding Interim Financial Statements

16.1     Letter from KPMG to SEC regarding  Registrant's  change in accountants;
         incorporated by reference from an exhibit filed on the Company's Report
         on Form 8-K dated January 2, 2004 and amended January 9, 2004.

21.1     Subsidiaries of the Registrant; incorporated by reference from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

23.1     Consent of Odenberg Ullakko Muranishi & Co. LLP, Independent Registered
         Public Accounting Firm.

23.2     Consent of Baratta & Goldstein  (included  in opinion  filed as Exhibit
         5.1).

24.1     Power of Attorney (see page II-19 to II-20).


                                     II-18

- ----------

^    Confidential  treatment  has been  granted as to certain  portions  of this
     exhibit.

*    To be filed by amendment.



ITEM 28.    UNDERTAKINGS

(a)  The undersigned Registrant hereby undertakes:


     1.   To file,  during any period in which offers or sales are being made, a
          post-effective amendment to this Registration Statement:

          (i)  to include any  prospectus  required  by Section  10(a)(3) of the
               Securities Act of 1933, as amended;

          (ii) to reflect in the  prospectus  any facts or events  arising after
               the  effective  date of the  Registration  Statement (or the most
               recent post-effective amendment thereof),  which, individually or
               in  the  aggregate,   represent  a  fundamental   change  in  the
               information   set   forth   in   the   Registration    Statement.
               Notwithstanding the foregoing, any increase or decrease in volume
               of  securities  offered (if the total dollar value of  securities
               offered  would not  exceed  that  which was  registered)  and any
               deviation  from  the low or  high  end of the  estimated  maximum
               offering  range may be reflected in the form of prospectus  filed
               with the Commission pursuant to Rule 424(b) if, in the aggregate,
               the  changes  in volume  and price  represent  no more than a 20%
               change in the maximum  aggregate  offering price set forth in the
               "Calculation  of   Registration   Fee"  table  in  the  effective
               registration statement; and

          (iii)to include any material  information  with respect to the plan of
               distribution   not  previously   disclosed  in  the  Registration
               Statement  or any  material  change  to such  information  in the
               Registration Statement.

     2.   That,  for  the  purpose  of  determining   any  liability  under  the
          Securities Act of 1933, as amended, each such post-effective amendment
          shall be deemed to be a new  registration  statement  relating  to the
          securities  offered  therein,  and the offering of such  securities at
          that  time  shall be  deemed  to be the  initial  bona  fide  offering
          thereof.

     3.   To remove from registration by means of a post-effective amendment any
          of  the  securities  being  registered  which  remain  unsold  at  the
          termination of the offering.

     4.   The undersigned  Registrant  hereby  undertakes  that, for purposes of
          determining  any  liability  under  the  Securities  Act of  1933,  as
          amended,  each filing of the  Registrant's  Annual Report  pursuant to
          Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934,
          as amended,  that is  incorporated  by reference  in the  Registration
          Statement shall be deemed to be a new registration  statement relating
          to the securities offered therein, and the offering of such securities
          at that  time  shall be deemed to be the  initial  bona fide  offering
          thereof.

     5.   Insofar  as   indemnification   for  liabilities   arising  under  the
          Securities  Act of 1933,  as amended (the "Act"),  may be permitted to
          directors, officers and controlling persons of the Registrant pursuant
          to the foregoing  provisions,  or otherwise,  the  Registrant has been
          advised that in the opinion of the Securities and Exchange  Commission
          such  indemnification is against public policy as expressed in the Act
          and is,  therefore,  unenforceable.  In the  event  that a  claim  for
          indemnification  against such  liabilities  (other than the payment by
          the Registrant of expenses incurred or paid by a director,  officer or
          controlling  person of the Registrant in the successful defense of any
          action,  suit or proceeding) is asserted by such director,  officer or
          controlling person in connection with the securities being registered,
          the Registrant  will,  unless in the opinion of its counsel the matter
          has  been  settled  by  controlling  precedent,  submit  to a court of
          appropriate  jurisdiction the question whether such indemnification by
          it is  against  public  policy  as  expressed  in the Act and  will be
          governed by the final adjudication of such issue.

     6.   The undersigned registrant hereby undertakes to deliver or cause to be
          delivered with the  prospectus,  to each person to whom the prospectus
          is sent or given, the latest annual report to security holders that is
          incorporated by reference in the prospectus and furnished  pursuant to
          and  meeting  the  requirements  of



                                     II-19


          Rule 14-a or Rule 14c-3 under the Securities  Exchange Act of 1934, as
          amended;  and,  where  interim  financial  information  required to be
          presented  by  Article 3 of  Regulations  S-X are not set forth in the
          prospectus,  to deliver,  or cause to be  delivered  to each person to
          whom the prospectus is sent or given, the latest quarterly report that
          is specifically incorporated by reference in the prospectus to provide
          such interim financial information.



                                     II-20




                                   SIGNATURES


Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,  the
registrant,  Calypte  Biomedical  Corporation,  certifies that it has reasonable
grounds to believe that it meets all of the requirements for filing on Form SB-2
and has duly caused this Registration Statement on Form SB-2 to be signed on its
behalf by the undersigned, thereunto duly authorized, in the city of Pleasanton,
State of California, on the 16th day of July, 2004.

                                        CALYPTE BIOMEDICAL CORPORATION

                                        By: /s/J. Richard George
                                           ------------------------------------
                                           J. Richard George
                                           President and Chief Executive Officer


                                POWER OF ATTORNEY

Each person whose  signature  appears below  constitutes and appoints J. Richard
George and Richard  Brounstein his true and lawful attorneys in fact and agents,
with full power of  substitution  and  resubstitution,  for him and in his name,
place  and  stead,  in any and all  capacities,  to sign  any or all  amendments
(including post effective amendments) to the Registration Statement, and to sign
any registration  statement for the same offering  covered by this  Registration
Statement that is to be effective upon filing  pursuant to Rule 462(b) under the
Securities Act of 1933, as amended,  and all post effective  amendments thereto,
and to file the same, with all exhibits thereto, and all documents in connection
therewith,  with the  Securities  and Exchange  Commission,  granting  unto said
attorneys-in-fact  and agents,  full power and  authority to do and perform each
and every  act and thing  requisite  and  necessary  to be done in and about the
premises, as fully to all intents and purposes as he or she might or could do in
person,  hereby  ratifying and  confirming  all that said  attorney-in-fact  and
agent, or his or her substitute or  substitutes,  may lawfully do or cause to be
done by virtue hereof.

Pursuant to the  requirements  of the Securities  Act of 1933, as amended,  this
Registration  Statement  on Form SB-2/A has been signed  below by the  following
persons in the capacities and on the dates indicated:




                 Signature                         Title                                 Date
- ---------------------------------   -----------------------------------------   --------------
                                                                          
/s/ Anthony J. Cataldo              Chairman of the Board of Directors          July 16, 2004
- ---------------------------------
Anthony J. Cataldo

/s/ J. Richard George               President and Chief Ececutive Officer       July 16, 2004
- ---------------------------------
J. Richard George

/s/ Richard D. Brounstein           Executive Vice President, Chief Financial   July 16, 2004
- ---------------------------------   Officer (Principal Financial and
Richard D. Brounstein               Accounting Officer)

/s/ John J. DiPietro                Director                                    July 16, 2004
- ---------------------------------
John J. DiPietro

/s/ Paul Freiman                    Director                                    July 16, 2004
- ---------------------------------
Paul Freiman




                                     II-21





                 Signature                         Title                                 Date
- ---------------------------------   -----------------------------------------   --------------
                                                                          
/s/ Julius R. Krevans, M.D.         Director                                    July 16, 2004
- ---------------------------------
Julius R. Krevans, M.D.

/s/ Maxim A. Soulimov               Director                                    July 16, 2004
- ---------------------------------
Maxim A. Soulimov





                                     II-22



                                  EXHIBIT INDEX


2.1      Asset  Purchase  Agreement,  dated as of  November  18,  1998,  between
         Calypte and Cambridge;  incorporated by reference from an exhibit filed
         with the Company's Report on Form 8-K dated December 16, 1998.

3.1      Bylaws of the Registrant,  as amended on January 19, 2004. incorporated
         by reference from an exhibit filed with the Company's  Quarterly report
         on Form 10-QSB/A (No. 1) dated January 29, 2004.

3.2      Restated   Certificate   of   Incorporation   of   Calypte   Biomedical
         Corporation, a Delaware corporation,  filed July 31, 1996; incorporated
         by reference  from an exhibit filed with the  Company's  Report on Form
         10-K dated March 28, 1997.

3.3      Certificate  of Amendment of the Amended and  Restated  Certificate  of
         Incorporation  of  Calypte  Biomedical   Corporation  effective  as  of
         February 14, 2003  incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-K dated March 26, 2003.

3.4      Certificate  of Amendment of the Amended and  Restated  Certificate  of
         Incorporation of Calypte  Biomedical  Corporation,  effective as of May
         27, 2003.

3.5      Certificate of Correction of Calypte Biomedical Corporation,  effective
         as of May 28, 2003.

4.1      Rights Agreement  between the Registrant and Chase Mellon  Shareholders
         L.L.C.  as Rights  Agents  dated  December 15,  1998;  incorporated  by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated December 16, 1998.

5.1*     Opinion of Baratta & Goldstein.

10.1     Form of  Indemnification  Agreement between the Company and each of its
         directors and officers, as amended January 19, 2004.

10.2     1991  Incentive  Stock Plan;  incorporated  by reference  from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.3     1995  Director  Option  Plan,  as  amended   effective  May  20,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-8 (File No. 333-106389) dated June 23,
         2003.

10.4     1995  Employee  Stock  Purchase  Plan,  amended  as of  May  20,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-8 (File No. 333-106389) dated June 23,
         2003.

10.9     Standard Form Lease  1255-1275  Harbor Bay Parkway  Harbor Bay Business
         Park between  Commercial  Center Bank and the  Registrant,  dated as of
         August 22, 1992; incorporated by reference from exhibits filed with the
         Company's Registration Statement on Form S-1 (File No. 333-04105) filed
         on May 20, 1996,  as amended to June 25,  1996,  July 15, 1996 and July
         26, 1996.

10.15^   License  Agreement  between the Registrant  and New York  University,
         dated as of August 13, 1993;  incorporated  by reference  from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.16    First  Amendment to License  Agreement  between the  Registrant and New
         York  University,  dated  as  of  January  11,  1995;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.


                                     II-23


10.17    Second  Amendment to License  Agreement  between the Registrant and New
         York  University,  dated  as  of  October  15,  1995;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996..

10.18^   Third Amendment to License  Agreement  between the Registrant and New
         York  University,  dated  as  of  January  31,  1996;  incorporated  by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.

10.21^   Sublicense  Agreement  between the Registrant  and Cambridge  Biotech
         Corporation, dated as of March 31, 1992; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.22^   Master  Agreement  between  the  Registrant  and  Cambridge  Biotech
         Corporation, dated as of April 12, 1996; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.23^   Sub-License  Agreement  between the Registrant and Cambridge  Biotech
         Corporation, dated as of April 12, 1996; incorporated by reference from
         exhibits  filed with the Company's  Registration  Statement on Form S-1
         (File No.  333-04105)  filed on May 20,  1996,  as  amended to June 25,
         1996, July 15, 1996 and July 26, 1996.

10.24^   Agreement between the Registrant and Repligen  Corporation,  dated as
         of March 8, 1993;  incorporated  by reference  from exhibits filed with
         the Company's  Registration  Statement on Form S-1 (File No. 333-04105)
         filed on May 20, 1996,  as amended to June 25, 1996,  July 15, 1996 and
         July 26, 1996.

10.25^   Non-Exclusive  License Agreement between the Registrant and The Texas
         A&M University System, dated as of September 12, 1993;  incorporated by
         reference from exhibits filed with the Company's Registration Statement
         on Form S-1 (File No.  333-04105)  filed on May 20, 1996, as amended to
         June 25, 1996, July 15, 1996 and July 26, 1996.

10.33    Form of Option Agreement for Stockholders of Pepgen Corporation,  dated
         as of October 12, 1995;  incorporated  by reference from exhibits filed
         with  the  Company's  Registration  Statement  on Form  S-1  (File  No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

10.41    Second  Addendum to Lease between the Registrant and Commercial  Center
         Bank dated as of July 21, 1997; incorporated by reference from exhibits
         filed with the Company's Report on Form 10-K dated March 25, 1998.

10.51    Non-Exclusive  Patent and License  Agreement between the Registrant and
         Public Health Service,  dated June 30, 1999;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report on Form 10-Q dated
         November 15, 1999.

10.55    Master  Lease  Agreement  between  Aquila   Biopharmaceuticals,   Inc.,
         Landlord,  and Biomerieux Vitek, Inc., Tenant,  dated as of October 22,
         1996;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 10-K dated March 30, 2000.

10.56    First  Amendment  to  Lease  between  Aquila  Biopharmaceuticals,  Inc.
         Landlord,  and Biomerieux Vitek, Inc.,  Tenant,  dated October 2, 1997;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 30, 2000.

10.57    Sublease   Agreement   between   Registrant   and   Cambridge   Biotech
         Corporation,  assignee of  Biomerieux,  Inc.  dated as of December  17,
         1998;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 10-K dated March 30, 2000.

10.58    Sublease   Agreement   between   Registrant   and   Cambridge   Biotech
         Corporation,  sub-lessee  of DynCorp,  dated as of December  17,  1998;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 30, 2000.


                                     II-24


10.62    Employment Agreement between the Registrant and Nancy E. Katz, dated as
         of October 18, 1999;  incorporated  by reference  from an exhibit filed
         with the Company's Report on Form 10-K dated March 30, 2000.

10.66    Restated  Technology Rights Agreement between  Registrant and Howard B.
         Urnovitz,  Ph.D.  dated as of March 1, 2000;  incorporated by reference
         from an exhibit filed with the Company's  Report on Form 10-Q dated May
         12, 2000.

10.67    Technology Rights Agreement between  Registrant and Chronix  Biomedical
         dated as of March 1, 2000;  incorporated  by reference  from an exhibit
         filed with the Company's Report on Form 10-Q dated May 12, 2000.

10.70^   Distribution Agreement between the Registrant and Biobras S.A., dated
         as of May 11, 2000;  incorporated  by reference  from an exhibit  filed
         with the Company's Report on Form 10-Q dated August 10, 2000.

10.73^   Fourth Amendment to the License  Agreement between the Registrant and
         New  York  University,  dated  as of  June  1,  2000;  incorporated  by
         reference from an exhibit filed with the Company's  Report on Form 10-Q
         dated August 10, 2000.

10.74    2000 Equity Incentive Plan, amended as of May 20, 2003; incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-8 (File No. 333-106389) dated June 23, 2003.

10.79    Convertible  Debentures  and Warrants  Purchase  Agreement  between the
         Registrant  and  AMRO  International,  S.A.  dated  January  22,  2001;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration  Statement on Form S-3 (File No. 333-58960) filed on April
         13, 2001.

10.84    Stock Purchase  Warrant to purchase common stock dated January 24, 2001
         issued to Townsbury Investments Limited; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-2
         (File No.  333-54316) filed on January 25, 2001, as amended on February
         9, 2001.

10.85    Common  Stock  Purchase   Agreement   between   Calypte  and  Townsbury
         Investments  Limited dated November 2, 2000;  incorporated by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-2 (File No.  333-54316)  filed on  January  25,  2001,  as amended on
         February 9, 2001.

10.86    Registration Rights Agreement between Calypte and Townsbury Investments
         Limited  dated  November 2, 2000;  incorporated  by  reference  from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-2
         (File No.  333-54316) filed on January 25, 2001, as amended on February
         9, 2001.

10.87    Escrow  Agreement  among  Calypte,  Townsbury  Investments  Limited and
         Epstein,  Becker & Green, P.C. dated November 2, 2000;  incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No.  333-54316)  filed on January 25, 2001,
         as amended on February 9, 2001.

10.88    Amendment  to Common  Stock  Purchase  Agreement  between  Calypte  and
         Townsbury  Investments Limited dated January 24, 2001;  incorporated by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No.  333-54316)  filed on January 25, 2001,
         as amended on February 9, 2001.

10.91    Third Addendum to Lease between the Registrant and Gee-Aspora LLC dated
         as of October 31, 2001; incorporated by reference from an exhibit filed
         with the Company's Report on Form 10-K dated March 11, 2002.

10.92    Registration   Rights   Agreement   between  the  Registrant  and  AMRO
         International,  S.A. dated January 22, 2001;  incorporated by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-3 (File No. 333-58960) filed on April 13, 2001.


                                     II-25


10.93    Escrow Agreement  between the Registrant and AMRO  International,  S.A.
         dated January 22, 2001; incorporated by reference from an exhibit filed
         with  the  Company's  Registration  Statement  on Form  S-3  (File  No.
         333-58960) filed on April 13, 2001.

10.94    Stock  Purchase  Warrant  to  purchase  common  stock  issued  to  AMRO
         International, S.A. on January 24, 2001; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-3
         (File No. 333-58960) filed on April 13, 2001.

10.95    6% Convertible Debenture in the principal amount of $550,000, due April
         26,  2001,  issued  to  AMRO  International,  S.A.  ;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-3 (File No. 333-58960) filed on April 13, 2001

10.96    6% Convertible Debenture in the principal amount of $550,000,  due June
         11,  2001,  issued  to  AMRO  International,  S.A.  ;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-3 (File No. 333-58960) filed on April 13, 2001

10.97    Common  Stock  Purchase   Agreement   between   Calypte  and  Townsbury
         Investments  Limited dated August 23, 2001;  incorporated  by reference
         from an exhibit filed with the Company's Registration Statement on Form
         S-2 (File No. 333-72268) filed on October 26, 2001.

10.98    Registration Rights Agreement between Calypte and Townsbury Investments
         Limited  dated  August 23,  2001;  incorporated  by  reference  from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-2
         (File No. 333-72268) filed on October 26, 2001.

10.99    Escrow Agreement among Calypte,  Townsbury  Investments Limited and New
         York  Escrow  Services,  LLC dated  August 23,  2001;  incorporated  by
         reference  from  an  exhibit  filed  with  the  Company's  Registration
         Statement on Form S-2 (File No. 333-72268) filed on October 26, 2001.

10.100   Stock Purchase  Warrant to purchase Common Stock dated October 19, 2001
         issued to Townsbury Investments Limited; incorporated by reference from
         an exhibit filed with the Company's  Registration Statement on Form S-2
         (File No. 333-72268) filed on October 26, 2001.

10.101   Securities  Purchase  Agreement  between  the  Registrant  and  Bristol
         Investment  Fund,  Ltd. Dated as of February 11, 2002;  incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated February 15, 2002.

10.102   Registration  Rights  Agreement  between  the  Registrant  and  Bristol
         Investment  Fund,  Ltd. Dated as of February 11, 2002;  incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated February 15, 2002.

10.103   Security  Agreement between the Registrant and Bristol Investment Fund,
         Ltd. Dated as of February 11, 2002;  incorporated  by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.104   Form of Secured  Convertible  Debenture  Securities  Purchase Agreement
         between the Registrant and Bristol  Investment  Fund,  Ltd. Dated as of
         February 11, 2002; incorporated by reference from an exhibit filed with
         the Company's Report on Form 8-K dated February 15, 2002.

10.105   Class A Stock Purchase Warrant for 56,667 shares of Common Stock issued
         to Bristol  Investment  Fund,  Ltd.;  incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.106   Class B Stock  Purchase  Warrant  for  400,000  shares of Common  Stock
         issued to Bristol Investment Fund, Ltd.; incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated  February
         15, 2002.

10.107   Stock  Purchase  Warrant  for 283  shares  of  Common  Stock  issued to
         Alexander Dunham Capital Group, Inc.; incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated February 15,
         2002.

10.108   Stock  Purchase  Warrant  for 2,550  shares of Common  Stock  issued to
         Bristol Capital, LLC. ; incorporated by reference from an exhibit filed
         with the Company's Report on Form 8-K dated February 15, 2002.


                                     II-26


10.109   Form of Common Stock  Purchase  Agreement  between the  Registrant  and
         certain  Purchasers dated November 13, 2001;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report on Form 10-K dated
         March 11, 2002.

10.110   Form of Common Stock Purchase  Agreement  with certain trade  creditors
         issued pursuant to a private placement  completed on February 12, 2002;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-K dated March 11, 2002.

10.111   Form of Subscription Agreement and 8% Convertible Note; incorporated by
         reference  from an exhibit filed with the Company's  Report on Form 8-K
         dated June 3, 2002.

10.112   Form of Subscription  Agreement and 8% Convertible Note Issued July 17,
         2002 by  Registrant;  incorporated  by reference  from an exhibit filed
         with the Company's Report on Form 10-Q dated August 14, 2002.

10.113   Employment  Agreement  between the  Registrant  and Anthony J.  Cataldo
         dated May 10, 2002;  incorporated  by reference  from an exhibit  filed
         with the Company's Report on Form 10-Q dated August 14, 2002.

10.114   Amendment  to  Non-Exclusive   Patent  and  License  Agreement  between
         Registrant and Public Health Service, dated April 5, 2002; incorporated
         by reference  from an exhibit filed with the  Company's  Report on Form
         10-Q dated August 14, 2002.

10.115   Investment  Commitment   Arrangement  with  Cataldo  Investment  Group;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 8-K dated November 12, 2002.

10.116   Term  Sheet  for  Mercator  Momentum  Fund LP and Form of  Registration
         Rights Agreement;  incorporated by reference from an exhibit filed with
         the Company's Report on Form 8-K dated November 12, 2002.

10.117   Form  of  Subscription  Agreement  under  Regulation  S  for  Caledonia
         Corporate Group Ltd. And Careen Ltd.; incorporated by reference from an
         exhibit filed with the Company's  Report on Form 8-K dated November 12,
         2002

10.118   Bi-Coastal Consulting, Inc. Agreements;  incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated  November
         12, 2002.

10.119   Employment  Agreement  between the Registrant and Nancy E. Katz,  dated
         October 31, 2002;  incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-Q dated November 14, 2002.

10.120   12%   Convertible   Debenture   Agreement   and  related   Warrant  and
         Registration  Rights  Agreement  dated as of October 22,  2002  between
         Registrant and Mercator Momentum Fund, L.P.;  incorporated by reference
         from an  exhibit  filed  with the  Company's  Report  on Form 8-K dated
         December 10, 2002.

10.121   Distribution  Agreement  between the Registrant and Zhong Yang Pute Co.
         dated as of October 10, 2002; incorporated by reference from an exhibit
         filed with the Company's Report on Form 10-Q/A (No.3) dated February 4,
         2003.

10.122   Amendment to Agreement with Mercator Momentum Fund dated as of December
         23,  2002;  incorporated  by reference  from an exhibit  filed with the
         Company's Report on Form 8-K/A dated January 21, 2003.

10.123   10% convertible  Debenture and related  Registration  Rights  Agreement
         dated as of January 14, 2003  between  Registrant  and  Mercator  Focus
         Fund,  L.P.;  incorporated  by reference from an exhibit filed with the
         Company's Report on Form 8-K dated January 21, 2003.

10.124   Distribution and Usage Memorandum of Understanding  between  Registrant
         and Safe Blood for Africa  Foundation,  dated as of December  10, 2002;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration Statement on Form S-2/A (No. 5) (File No. 333-84660) dated
         February 4, 2003.


                                     II-27


10.125   Employment Agreement between Registrant and Richard D. Brounstein dated
         as of January 1, 2003;  incorporated by reference from an exhibit filed
         with the Company's Annual Report on Form 10-K dated March 26, 2003.

10.126   Letter  Agreement  between  Registrant and Nancy E. Katz dated February
         14,  2003;  incorporated  by reference  from an exhibit  filed with the
         Company's Annual Report on Form 10-K dated March 26, 2003.

10.127   Letter Agreement between  Registrant and Bristol  Investment Fund, Ltd.
         Dated  February 28,  2003;  incorporated  by reference  from an exhibit
         filed with the  Company's  Annual  Report on Form 10-K dated  March 26,
         2003.

10.128   2003 Non-Qualified Stock Option Plan; incorporated by reference from an
         exhibit  filed with the  Company's  Registration  Statement on Form S-8
         (File No. 333-106387) dated June 23, 2003.

10.129   Consulting   Agreement  between  Registrant  and  Junebug   Enterprises
         effective  as of April 23,  2003;  incorporated  by  reference  from an
         exhibit filed with the Company's Report on Form 10-QSB dated August 14,
         2003.

10.130   Employment  Agreement between  Registrant and Jay Oyakawa,  dated as of
         August 12, 2003;  incorporated  by reference from an exhibit filed with
         the Company's Report on Form 10-QSB dated August 14, 2003.

10.131   Separation  Agreement,  Mutual  Release  and  Waiver of Claims  between
         Registrant  and  Nancy  E.  Katz,   effective  as  of  June  27,  2003;
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 10-QSB dated August 14, 2003.

10.132   Subscription  Agreement  between  Registrant and Marr Technologies B.V.
         dated as of August 1, 2003  incorporated  by reference  from an exhibit
         filed with the Company's Report on Form 10-QSB dated August 14, 2003.

10.133   Subscription  Agreement  between the Company and Marr Technologies B.V.
         for  20,000,000  shares of  Registrant's  Common Stock dated August 28,
         2003;  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's Report on Form 8-K dated September 12, 2003.

10.134   Agreement for  Commitment to Purchase  Aggregate of  $10,000,000  of 5%
         Promissory Notes between the Company and Marr  Technologies  B.V. dated
         November 13, 2003; incorporated by reference from an exhibit filed with
         the Company's Report on Form 10-QSB dated November 14, 2003.

10.135   Separation  Agreement  and Release  between the Company and Jay Oyakawa
         dated January 19, 2004; incorporated by reference from an exhibit filed
         with the  Company's  Report on Form  10-QSB/A (No. 1) dated January 29,
         2004.

10.136   Employment   Agreement  between  the  Company  and  J.  Richard  George
         effective as of January 20,  2004;  incorporated  by reference  from an
         exhibit  filed with the  Company's  Annual  Report on Form 10-KSB dated
         March 29, 2004.

10.137   Lease Agreement between the Company and ARE-1500 East Gude LLC dated as
         of March 1, 2004;  incorporated by reference from an exhibit filed with
         the Company's Annual Report on Form 10-KSB dated March 29, 2004.

10.138   Amendment  No. 1 to Agreement for  Commitment to Purchase  Aggregate of
         $10,000,000  of 5%  Promissory  Notes  between  the  Company  and  Marr
         Technologies  B.V. dated March 19, 2004  incorporated by reference from
         an exhibit filed with the Company's  Report on Form 8-K dated March 19,
         2004.

10.139   Common  Stock  Purchase  Warrant to Purchase  400,000  Shares of Common
         Stock  between  the Company  and Boodle  Hatfield  dated March 19, 2004
         incorporated  by  reference  from an exhibit  filed with the  Company's
         Report on Form 8-K dated March 19, 2004


                                     II-28


10.140   Amendment No. 1 to Separation Agreement and Release between the Company
         and Jay Oyakawa dated February 25, 2004  incorporated by reference from
         an exhibit  filed with the  Company's  Quarterly  Report on Form 10-QSB
         dated May 13, 2004.

10.141   Form of  Securities  Purchase  Agreement  between  the  Company and the
         investors in the May 2004 PIPE financing incorporated by reference from
         an exhibit filed with the Company's Report on Form 8-K on June 1, 2004.

10.142   Form of  Registration  Rights  Agreement  between  the  Company and the
         investors in the May 2004 PIPE financing incorporated by reference from
         an exhibit filed with the Company's Report on Form 8-K on June 1, 2004.

10.143   Form of Warrant  between the Company and the  investors in the May 2004
         PIPE financing incorporated by reference from an exhibit filed with the
         Company's Report on Form 8-K on June 1, 2004.

10.144   Amendment  No. 2 to Agreement for  Commitment to Purchase  Aggregate of
         $10,000,000  of 5%  Promissory  Notes  between  the  Company  and  Marr
         Technologies  B.V.  effective May 26, 2004,  incorporated  by reference
         from an exhibit filed with the Company's  report on Form 8-K on June 3,
         2004.

10.145   Common  Stock  Purchase  Warrant to Purchase  500,000  Shares of Common
         Stock  issued by the Company to Marr  Technologies  B.V.  dated May 26,
         2004,  incorporated  by  reference  from  an  exhibit  filed  with  the
         Company's report on Form 8-K on June 3, 2004.

10.146   2004 Incentive  Plan,  incorporated  by reference from an exhibit filed
         with the Company's Registration Statement on Form S-8 on June 25, 2004.

10.147   Form of  Securities  Purchase  Agreement  between  the  Company and the
         investors  in the July 2004 PIPE  financing  incorporated  by reference
         from an exhibit filed with the Company's Report on Form 8-K on July 13,
         2004.

10.148   Form of  Registration  Rights  Agreement  between  the  Company and the
         investors  in the July 2004 PIPE  financing  ~ncorporated  by reference
         from an exhibit filed with the Company's Report on Form 8-K on July 13,
         2004.

10.149   Form of Warrant  between the Company and the investors in the July 2004
         PIPE financing ~ncorporated by reference from an exhibit filed with the
         Company's Report on Form 8-K on July 13, 2004.

15.1     Letter  from  Odenberg  Ullakko  Muranishi & Co. LLP dated June 8, 2004
         regarding Interim Financial Statements

16.1     Letter  from  KPMG  LLP  to  SEC  regarding   Registrant's   change  in
         accountants;  incorporated  by reference  from an exhibit  filed on the
         Company's  Report on Form 8-K dated January 2, 2004 and amended January
         9, 2004.

21.1     Subsidiaries of the Registrant; incorporated by reference from exhibits
         filed with the Company's  Registration  Statement on Form S-1 (File No.
         333-04105) filed on May 20, 1996, as amended to June 25, 1996, July 15,
         1996 and July 26, 1996.

23.1     Consent of Odenberg Ullakko Muranishi & Co. LLP, Independent Registered
         Public Accounting Firm.

23.2     Consent of Baratta & Goldstein  (included  in opinion  filed as Exhibit
         5.1).

24.1     Power of Attorney (see page II-19 through II-20).

- ------------

^        Confidential  treatment has been granted as to certain portions of this
         exhibit.

*        To be filed by amendment.


                                     II-29


                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES


                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

   Audited Financial Statements for the Years Ended December 31, 2003 and 2002

Report of Independent Registered Public Accounting Firm                      F-2

Consolidated Balance Sheets                                                  F-3

Consolidated Statements of Operations                                        F-4

Consolidated Statements of Stockholders' Equity (Deficit)                    F-5

Consolidated Statements of Cash Flows                                        F-7

Notes to Consolidated Financial Statements                                   F-9


  Unaudited Financial Statements for the Quarters Ended March 31, 2004 and 2003

  Condensed Consolidated Balance Sheets (unaudited)                         F-39

  Condensed Consolidated Statements of Operations (unaudited)               F-40

  Consolidated Statement of Stockholders' Deficit (unaudited)               F-41

  Consolidated Statements of Cash Flows (unaudited)                         F-42

  Notes to Condensed Consolidated Financial Statements (unaudited)          F-44



                                      F-1




            REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Stockholders of
Calypte Biomedical Corporation:

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Calypte
Biomedical  Corporation  and its  subsidiaries as of December 31, 2003 and 2002,
and the related  consolidated  statements of  operations,  stockholders'  equity
(deficit), and cash flows for the years then ended. These consolidated financial
statements   are  the   responsibility   of  the   Company's   management.   Our
responsibility  is  to  express  an  opinion  on  these  consolidated  financial
statements based on our audits.

We conducted  our audits in  accordance  with  standards  of the Public  Company
Accounting Oversight Board. Those standards require that we plan and perform the
audit to obtain reasonable  assurance about whether the financial statements are
free of material  misstatement.  An audit includes  examining,  on a test basis,
evidence supporting the amounts and disclosures in the financial statements.  An
audit also includes  assessing the accounting  principles  used and  significant
estimates  made by  management,  as well as  evaluating  the  overall  financial
statement  presentation.  We believe that our audits provide a reasonable  basis
for our opinion.

In our opinion,  the  consolidated  financial  statements  audited by us present
fairly, in all material  respects,  the financial position of Calypte Biomedical
Corporation and its  subsidiaries at December 31, 2003 and 2002, and the results
of their operations and their cash flows for the years then ended, in conformity
with accounting principles generally accepted in the United States of America.

As discussed in Note 1 to the consolidated financial statements, the Company has
adopted Statement of Financial  Accounting Standards No. 145, Rescission of FASB
Statements No. 4, 44, and 64,  Amendment of FASB Statement No. 13, and Technical
Corrections.  As a  result,  the gain from  settlement  of debt in 2002 has been
reclassified from an extraordinary to an ordinary gain.

As  described  in Notes 1, 6 and 18, the Company  raised $9.3  million in equity
financing in May 2004 and approximately $1.5 million in equity financing in July
2004 and also amended a financing agreement with its largest stockholder.  Under
the amended agreement,  the Company may borrow up to approximately $3.6 million,
subject to adjustment,  for general corporate  purposes until December 31, 2004,
in exchange for 9% promissory notes maturing on May 31, 2005.


/s/ Odenberg Ullakko Muranishi & Co. LLP

San Francisco,  California  March 19, 2004,  except for Note 18, as to which the
date is July 14, 2004


                                      F-2




                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS

                 (in thousands, except share and per share data)





                                                                                                  December 31,
                                                                                            ---------------------------
                                                                                               2003           2002
                                                                                            -------------  ------------
                                                                                                     
                                         ASSETS
Current assets:
      Cash and cash equivalents                                                              $   5,084     $      147
      Accounts receivable, net of allowance of $36 and $32 at December 31, 2003 and                369            327
         2002, respectively
      Inventory                                                                                  2,153            963
      Prepaid expenses                                                                             872            163
      Deferred offering costs, net of accumulated amortization of $333 and $213 at
         December 31, 2003 and 2002, respectively                                                   14            662
      Other current assets                                                                          63             15
                                                                                            ----------    ------------

            Total current assets                                                                 8,555          2,277

Property and equipment, net                                                                        727            917
Other assets                                                                                       235            103
                                                                                             ---------    -----------

                                                                                              $  9,517     $    3,297
                                                                                              ========     ==========
                     LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
      Accounts payable and accrued expenses                                                 $    4,322     $    5,145
      Notes and debentures payable, net of $90 and $2,638 discount at December 31, 2003
         and 2002, respectively                                                                    868          2,181
      Deferred revenue                                                                             500            500
                                                                                            ----------     ----------

            Total current liabilities                                                            5,690          7,826

Warrant liability                                                                                    -            356
Other long term liabilities                                                                        157             33

Mandatorily  redeemable  Series A preferred  stock,  $0.001 par value; no shares
   authorized  at  December  31,  2003  and  2002;  100,000  shares  issued  and
   outstanding at December 31,
   2003 and 2002; aggregate redemption and liquidation value of $1,000 plus cumulative           2,696          2,576
   dividends

Minority interest in consolidated joint venture                                                      57             -
                                                                                           -----------    -----------
            Total liabilities                                                                    8,600         10,791
                                                                                            ----------     ----------

Commitments and contingencies

Stockholders' equity (deficit):
      Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued               -              -
         or outstanding
      Common  stock,  $0.03  par  value;   800,000,000  and  200,000,000  shares
         authorized  at December 31, 2003 and 2002;  136,300,885  and  5,058,484
         shares issued and
         outstanding as of December 31, 2003 and 2002, respectively                              4,089            152
      Additional paid-in capital                                                               124,699         93,804
      Deferred compensation                                                                         (7)             -
      Accumulated deficit                                                                     (127,864)      (101,450)
                                                                                              --------       --------

            Total stockholders' equity (deficit)                                                   917         (7,494)
                                                                                            ----------    -----------

                                                                                             $   9,517     $    3,297
                                                                                             =========     ==========

                                  See accompanying notes to consolidated financial statements.



                                                              F-3







                                         CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                                              CONSOLIDATED STATEMENTS OF OPERATIONS

                                              (in thousands, except per share data)
                                                                                            Year Ended December 31,
                                                                                           ---------------------------
                                                                                               2003          2002
                                                                                           -------------- ------------
                                                                                                    
Revenues:
   Product sales                                                                             $    3,467    $  3,670
                                                                                           ------------    ------------

Operating expenses:
   Product costs                                                                                  6,121       6,162
   Research and development costs                                                                 1,544         929
   Selling, general and administrative costs (non-cash of $6,648 and $3,243 in 2003 and
     2002, respectively)                                                                         15,517       9,006
                                                                                           ------------     -----------
     Total operating expenses                                                                    23,182      16,097
                                                                                           ------------     -----------

       Loss from operations                                                                     (19,715)    (12,427)
Interest expense, net (non-cash of $6,559 and $1,874 in 2003 and 2002, respectively)             (6,969)     (2,203)
Gain on settlement of trade debt                                                                      -       1,319
Minority interest in joint venture                                                                   90           -
Other income, net                                                                                   182          16
                                                                                           ------------    ---------

       Loss before income taxes                                                                 (26,412)    (13,295)

Income taxes                                                                                          2           2
                                                                                            -----------   ----------
       Net loss                                                                                 (26,414)    (13,297)

Less dividends on mandatorily redeemable Series A preferred stock                                   (60)       (120)
                                                                                             ---------    ----------

Net loss attributable to common stockholders                                                $   (26,474)  $ (13,417)
                                                                                            ===========   ==========

Net loss per share attributable to common stockholders (basic and diluted)                   $   (0.47)     $ (5.18)
                                                                                            ===========    =========

Weighted average shares used to compute net loss per share attributable to common
   stockholders (basic and diluted)                                                              55,903       2,591
                                                                                            ===========    ==========

                                  See accompanying notes to consolidated financial statements.



                                                               F-4






                                         CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES
                                    CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)

                                             Years Ended December 31, 2002 and 2003
                                                (in thousands, except share data)
                                                                                                            Total
                                    Number of     Common       Additional      Deferred    Accumulated  Stockholders'
                                  Common Shares     Stock    Paid-in Capital Compensation    Deficit       Equity
                                                                                                          (Deficit)
                                  -------------    -------   ---------------  ------------  -----------   -----------
                                                                                        
   Balances at December 31,         1,259,738        $  38     $  82,623     $              $ (88,153)    $  (5,500)
     2001                                                                             (8)
   Shares issued under the
     Employee Stock Purchase            3,437            -             5               -            -             5
     Plan
   Stock issued in lieu of
     cash to employees,
     vendors and consultants          450,494           13         1,320               -            -         1,333
   Shares issued under Equity
     Line agreements
     (including warrant               922,801           28         2,964               -            -         2,992
     exercise)
   Cost of issuance of common
     stock under Equity Line                -            -          (280)              -            -          (280)
     agreement
   Shares issued through
     private placement                266,667            8           392               -            -           400
   Costs for issuance of
     private placement                 16,666            -          (109)              -            -          (109)
   Shares issued upon
     conversion of debentures,
     accrued interest and             489,540           15           389               -            -           404
     delayed registration
     penalties
   Shares issued upon exercise
     of warrants and options        1,649,141           50         1,865               -            -         1,915
   Fair value of warrants and
     beneficial conversion
     feature granted in
     conjunction with issuance
     of convertible debentures              -            -         3,626               -            -         3,626
   Amortization of deferred
     offering costs associated
     with convertible notes,
     debentures and equity line             -            -          (953)              -            -          (953)
   Write off of deferred
     offering costs upon
     conversion of notes and                -            -          (224)              -            -          (224)
     debentures
   Dividend requirements of
     mandatorily redeemable
     Series A preferred stock               -            -          (120)              -            -          (120)
   Compensation related to
     stock option grants                    -            -         2,306             (75)           -         2,231
   Amortization of deferred
     compensation                           -            -             -              83            -            83
   Net loss                                 -            -             -               -      (13,297)      (13,297)
                                  -------------    -------   ---------------  ------------  -----------   -----------
   Balances at December 31,         5,058,484      $   152      $ 93,804      $        -   $ (101,450)  $    (7,494)
     200                          =============    =======   ===============  ============ ============= ===========

                                                           (Continued)



                                                               F-5






                                         CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                              CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (Continued)

                                             Years Ended December 31, 2002 and 2003

                                                (in thousands, except share data)

                                                                                                            Total
                                    Number of     Common       Additional      Deferred    Accumulated  Stockholders'
                                  Common Shares     Stock    Paid-in Capital Compensation    Deficit       Equity (Deficit)
                                  -------------    -------   ---------------  ------------  -----------   -----------------
                                                                                        
   Balances at December 31,         5,058,484       $  152     $  93,804     $         -   $ (101,450)    $  (7,494)
     2002
   Shares issued under the
     Employee Stock Purchase           18,192            -             4               -            -             4
     Plan
   Stock issued in lieu of
     cash to employees,
     vendors and consultants        6,374,523          183         3,716               -            -         3,899
   Shares issued through
     private placement             28,333,333          850        11,650               -            -        12,500
   Shares issued upon
     conversion of debentures,
     accrued interest and          83,067,064        2,492         5,902               -            -         8,394
     delayed registration
     penalties
   Shares issued upon exercise
     of warrants and options       13,418,728          411         4,029               -            -         4,440
   Costs for issuance of stock              -            -          (677)              -            -          (677)
   Fair value of warrants and
     beneficial conversion
     feature granted in
     conjunction with issuance
     of convertible debentures              -            -         2,287               -            -         2,287
   Repurchase of beneficial
     conversion feature                     -            -          (128)              -            -          (128)
   Dividend requirements of
     mandatorily redeemable
     Series A preferred stock               -            -           (60)              -            -           (60)
   Compensation related to
     stock option grants                    -            -         4,136             (10)           -         4,126
   Amortization of deferred
     compensation                           -            -             -               3            -             3
   Shares issued to acquire
     intellectual property             30,561            1            36               -            -            37
   Net loss                                 -            -                -            -      (26,414)      (26,414)
                                  -------------    -------   ---------------  ------------  -----------   -----------
   Balances at December 31,       136,300,885     $   4,089    $ 124,699     $       ( 7)  $ (127,864)   $      917
     2003                         =============    ========   ==============  =============  ===========  ============

                                  See accompanying notes to consolidated financial statements.




                                                               F-6






                                         CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                                              CONSOLIDATED STATEMENTS OF CASH FLOWS

                                                         (in thousands)

                                                                                                  Year Ended
                                                                                                 December 31,
                                                                                          ----------------------------
                                                                                              2003          2002
                                                                                          ------------- --------------
                                                                                                  
Cash flows from operating activities:
Net loss                                                                                   $   (26,414) $
                                                                                                             (13,297)
Adjustments to reconcile net loss to net cash used in operating activities:
   Depreciation and amortization                                                                   567           512
   Amortization of deferred compensation                                                             3            83
   Non-cash interest expense attributable to:
     Amortization of debenture discounts and charge for beneficial conversion feature            4,835         1,187
     Amortization of deferred offering costs                                                       997           214
     Liquidated damages due to delayed registration of stock underlying convertible                540           546
     debentures
     Dividends on mandatorily redeemable Series A preferred stock                                   60             -
   Non-cash loss (gain) on settlement of trade debt                                                 54        (1,319)
   Fair market value of common stock warrants, options and bonuses granted                       7,082         2,952
   Gain on repurchase of beneficial conversion feature                                            (128)            -
   Warrant liability adjustment                                                                   (275)          (69)
   Loss on sale of equipment                                                                        55             -
   Minority interest in joint venture                                                               57
   Changes in operating assets and liabilities:
     Accounts receivable                                                                           (41)           (2)
     Inventory                                                                                  (1,190)          166
     Prepaid expenses and other current assets                                                    (299)          127
     Deferred offering costs and other assets                                                       19            25
     Accounts payable and accrued expenses                                                         502           238
     Other long-term liabilities                                                                   129           (28)
                                                                                             ---------    -----------

       Net cash used in operating activities                                                   (13,447)       (8,665)
                                                                                              --------      --------

Cash flows from investing activities:
   Acquisition of intellectual property                                                           (113)            -
   Purchase of equipment                                                                          (433)         (242)
                                                                                             ---------     ---------

       Net cash used in investing activities                                                      (546)         (242)
                                                                                           -----------     ---------

Cash flows from financing activities:
   Proceeds from sale of stock                                                                  16,994         5,311
   Expenses related to sale of stock                                                              (678)         (444)
   Net proceeds from issuance of notes and debentures                                            3,353         3,980
   Repayment of notes and debentures                                                              (735)          (42)
   Principal payments on capital lease obligations                                                  (4)          (38)
                                                                                           -----------    ----------

       Net cash provided by financing activities                                                18,930         8,767
                                                                                              --------      --------

Net increase (decrease) in cash and cash equivalents                                             4,937          (140)

Cash and cash equivalents at beginning of period                                                   147           287
                                                                                             ---------      --------

Cash and cash equivalents at end of period                                                   $   5,084     $     147
                                                                                              ========      ========



                                                           (continued)





                                                               F-7







                                         CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                                        CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

                                                         (in thousands)



                                                                                                  Year Ended
                                                                                                 December 31,
                                                                                         -----------------------------
                                                                                             2003           2002
                                                                                         -------------- --------------
                                                                                                  
Supplemental disclosure of cash flow activities:
   Cash paid for interest                                                                  $       37     $       73
   Cash paid for income taxes                                                                       2              2

Supplemental disclosure of non-cash activities:
   Dividend on mandatorily redeemable Series A preferred stock                                     60            120
   Common stock grants                                                                            435            612
   Conversion of notes and debentures payable and accrued interest to common stock              8,488            408
   Fair market value of warrants issued in conjunction with debenture                              81            900
   Beneficial conversion feature, net of write off upon conversion                              2,287          3,452
   Accrued interest converted to note payable                                                     148              -


                                  See accompanying notes to consolidated financial statements.





                                                               F-8





                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

(1)  The Company

Calypte  Biomedical  Corporation  (the  "Company")  develops,  manufactures  and
markets  urine-based  screening  and  supplemental  tests for the  detection  of
antibodies to the Human Immunodeficiency  Virus, Type-1 ("HIV-1"),  the cause of
Acquired  Immunodeficiency  Syndrome  ("AIDS").  The Company's tests include its
screening enzyme immunoassay (EIA) and supplemental Western Blot tests, the only
two  FDA-licensed  HIV-1 antibody  tests that can be used on urine samples.  The
Company believes that accurate, non-invasive urine-based testing methods for HIV
and other chronic  diseases  make  important  contributions  to public health by
helping  to  foster  an  environment  in  which  testing  may  be  done  safely,
economically,  and  painlessly.  The Company  also  manufactures  and markets an
FDA-licensed  serum-based  supplemental  test for detecting HIV-1  antibodies in
serum. In December 1998,  Calypte  acquired from Cambridge  Biotech  Corporation
certain  assets  primarily  relating to the  manufacture  of its HIV-1 urine and
serum Western Blot products. The Company's revenues are currently generated from
the sale of its EIA and its urine- and  serum-based  Western  Blot  supplemental
tests,  together  referred  to  as  its  "ELISA  tests".  The  ELISA  tests  are
manufactured  in  a  format  that  makes  them  most  suitable  for  high-volume
laboratory  settings.  In November  2003,  the Company filed an  Investigational
Device  Exemption  ("IDE") with the FDA announcing its intent to develop a rapid
serum-based  screening  test that  provides  a test  result in less than  twenty
minutes and which is more suitable for point-of care applications,  particularly
in  international  venues.  The Company is currently  developing both serum- and
urine-based rapid screening tests and anticipates that the primary source of its
future revenues will be from sales of its rapid products,  both  internationally
and domestically.

Calypte  commenced  operations  in  1989  and  was  incorporated  as a  Delaware
corporation in June 1996,  concurrent  with the initial  public  offering of its
stock. On June 1, 1998, the Company ceased being a development  stage enterprise
when it announced  that the FDA had approved its urine HIV-1  Western Blot test.
That test is used on samples that are repeatedly reactive in the Company's HIV-1
urine  antibody  screening  test.  The  supplemental  test  completed  the  only
available  urine-based  HIV-1 test method.  Calypte is headquartered in Alameda,
California  and  manufactures  its  HIV-1  screening  test  there.  The  Company
manufactures  its urine and serum HIV-1 Western Blot  supplemental  tests at its
facilities in Rockville,  Maryland.  At December 31, 2003,  both the Alameda and
Rockville manufacturing facilities were FDA approved.

Calypte  and its  distributors  market its ELISA tests in  approximately  half a
dozen  countries   worldwide.   The  Company's  marketing  strategy  is  to  use
distributors,  focused direct selling and  joint-venture  marketing  partners to
penetrate targeted domestic and international  markets. We are currently selling
internationally primarily in the People's Republic of China and Brazil.

The Company  incurred net losses  attributable  to common  stockholders of $26.5
million  and $13.4  million  in 2003 and  2002,  respectively.  The  accumulated
deficit at December 31, 2003 was $127.8 million. As described more completely in
Note  18,  since  December  31,  2003,  the  Company  has  amended  a  financing
arrangement  that  management  believes will provide  adequate  funds to sustain
operations  at expected  levels at least  through  2004.  To the extent that the
Company issues notes under this financing  arrangement,  however,  it must repay
those notes at their  maturity  dates during the first half of 2005. The Company
must achieve  profitability and sustainable cash flows for its business model to
succeed. If sufficient funds are not available from the Company's  operations to
repay the promissory  notes when due,  however,  the Company may need to arrange
additional financing, attempt to extend or otherwise modify the promissory notes
or make other arrangements.  There can be no assurance that additional financing
would be available, or it if is available, that it would be on acceptable terms.
The Company's future liquidity and capital  requirements will depend on numerous
factors,  including  successful  completion of the  development of its new rapid
tests,  acquisition and protection of  intellectual  property  rights,  costs of
developing   its  new  products,   ability  to  transfer   technology,   set  up
manufacturing  and obtain  regulatory  approvals of its new rapid tests,  market
acceptance of all its products,  existence of competing  products in its current
and anticipated markets,  actions by the FDA and other international  regulatory
bodies,  and its  ability  to  raise  additional  capital  in a  timely  manner.
Management expects to be able to raise additional capital;  however, the Company
may not be able to obtain additional financing on acceptable terms, or at all.


Stock split

On May 20, 2003, the Company's shareholders approved a 1:30 reverse stock split,
which  became  effective  on May 28,  2003.  The  stated par value of the common
shares  was  changed to $0.03 from  $0.001 per share.  The number of  authorized
shares of common stock remained at 800 million.  All share and per share amounts
presented reflect the stock split.


                                       F-9



                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

(2)  Significant Accounting Policies

Principles of Consolidation

The  accompanying  consolidated  financial  statements  include  the  results of
operations of the Company, its wholly-owned  subsidiary,  Calypte,  Inc. and its
51% owned joint venture in China, Beijing Calypte Biomedical Technology Ltd. All
significant  intercompany  accounts and  transactions  have been  eliminated  in
consolidation.

Cash and Cash Equivalents

Cash equivalents consist of investments in money market accounts.

Allowance for Doubtful Accounts

The  Company  provides  an  allowance  for  doubtful   accounts  on  a  specific
identification  basis  when,  due to passage of time or receipt of  information,
there is  appropriate  evidence of a  customer's  inability to make the required
payments.

Inventories

Inventories are stated at the lower of cost or market with cost determined using
the first-in, first-out method.

Property and Equipment

Property and equipment are stated at cost.  Machinery and  equipment,  furniture
and fixtures,  and computer  equipment are  depreciated  using the straight line
method over the estimated useful lives of the assets, generally as follows:

Computer equipment                      3 years
Machinery and equipment                 5 years
Furniture and fixtures                  5 years
Leasehold improvements                  3-7 years

Leasehold  improvements  and  equipment  under  capital  leases are amortized or
depreciated  over the shorter of the remaining  lease term or the useful life of
the equipment or improvement.

Long-Lived Assets

Long-lived assets are comprised of property and equipment and intangible assets.
Long-lived  assets are reviewed  for  impairment  whenever  events or changes in
circumstances  indicate  that  the  carrying  amount  of the  asset  may  not be
recoverable.  An estimate  of  undiscounted  future  cash flows  produced by the
asset,  or by the  appropriate  grouping of assets,  is compared to the carrying
value to determine  whether  impairment  exists. If an asset is determined to be
impaired,  the loss is measured based on quoted market prices in active markets,
if available.  If quoted market prices are not  available,  the estimate of fair
value is based on various valuation techniques,  including a discounted value of
estimated  future cash flow and  fundamental  analysis.  The Company  reports an
asset to be disposed of at the lower of its carrying  value or its estimated net
realizable value.

Fair Value of Financial Instruments

Financial  assets  and  short-term  liabilities,   with  the  exception  of  the
convertible  notes and debentures,  have carrying values which approximate their
fair values for all periods presented.  The carrying amounts of cash equivalents
approximate  fair value  because of their  short-term  nature and  because  such
amounts are invested in accounts  earning  market  rates of  interest.  The face
amount of the convertible  notes and debentures  approximate  fair value and are
offset by the calculated value of the beneficial  conversion feature embedded in
the respective notes or debentures.


                                      F-10


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Revenue Recognition

The Company  records  revenues only upon the  occurrence of all of the following
conditions:

o    The Company has  received a binding  purchase  order or similar  commitment
     from the customer or distributor  authorized by a representative  empowered
     to commit the purchaser (evidence of a sale).

o    The  purchase  price has been  fixed,  based on the  terms of the  purchase
     order.

o    The Company has delivered the product from one of its manufacturing  plants
     to a common carrier  acceptable to the purchaser.  The Company's  customary
     shipping terms are FOB shipping  point.  Because of the need for controlled
     conditions  during  shipment,  the  Company  suggests,  but  leaves  to the
     purchaser's discretion,  acquiring insurance for the value of the shipment.
     If the  purchaser  elects to insure the  shipment,  the insurance is at the
     purchaser's expense.

o    The Company  deems the  collection  of the amount  invoiced  probable.  The
     Company currently deals with a limited number of customers or distributors,
     with  most of whom it has had a  relationship  for a number  of  years.  To
     eliminate the credit risk associated with  international  distributors with
     whom the Company  has had little or no  experience,  the  Company  requires
     prepayment of the order or a letter of credit before shipment.

The Company does not permit  product  returns.  The  Company's  products must be
maintained under rigidly controlled  conditions that it cannot control after the
product has been shipped to the customer.

The Company  provides no price  protection.  With the  exception of sales to one
distributor  through October 2003, the Company  recognizes revenue upon shipment
of product. In the case of that distributor,  the distributor held the Company's
inventory on  consignment  and reported  monthly its usage of the products.  The
Company recorded revenue on sales to this distributor based on the distributor's
reported usage. In October,  2003, this  distributor  purchased from the Company
the  inventory  on hand and  switched  to a standard  contractual  relationship;
thereafter, the Company recognized revenue upon shipment.

Deferred Revenue

Pursuant to a 1991 License and Supply Agreement,  a Japanese  distributor made a
payment of  $500,000  to Calypte  representing  an  advance  creditable  against
royalties and other payments to be paid by the  distributor to Calypte under the
terms of the Agreement. In a 1994 Distribution Agreement between Calypte and the
distributor,  the  distributor  agreed to waive  its  right to have the  advance
payment  credited to subsequent  payments it might owe Calypte under the License
and Supply Agreement or the Distribution  Agreement in return for a 50% discount
on  products  supplied  by  Calypte to the  distributor,  until such time as the
distributor has received  cumulative  discounts totaling  $500,000.  Pursuant to
that agreement,  Calypte  recorded the $500,000 payment as deferred revenue that
was to be recognized as product was sold at the stipulated  50% discount.  As of
this date, Calypte has sold no product to the distributor under the terms of the
Distribution Agreement and the deferred revenue balance remains unchanged.

The Company's  current  sales  practices do not require the deferral of revenues
and no  entries  to record  deferred  revenue  have been made  during the period
included in the accompanying consolidated financial statements.

Income Taxes

The Company  accounts for income taxes under  Statement of Financial  Accounting
Standards (SFAS) No. 109,  Accounting for Income Taxes. SFAS No. 109 requires an
asset and liability approach for the financial  reporting of income taxes. Under
SFAS No. 109,  deferred tax assets and liabilities are recognized for the future
tax  consequences  attributable to differences  between the financial  statement
carrying  amounts of existing assets and  liabilities  and their  respective tax
bases and operating loss and tax credit  carryforwards.  Deferred tax assets and
liabilities  are measured  using enacted tax rates  expected to apply to taxable
income in the years in which  those  temporary  differences  are  expected to be
recovered or settled.  Under SFAS No. 109, the effect on deferred tax assets and
liabilities  of a change in tax rates is recognized in income in the period that
includes the enactment date.

Stock-Based Compensation



                                      F-11


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


Statement of  Financial  Accounting  Standards  (SFAS) No. 123,  Accounting  for
Stock-Based Compensation, as amended by SFAS No. 148, Accounting for Stock-Based
Compensation - Transition  and  Disclosure,  establishes a fair-value  method of
accounting  for stock options and similar  equity  instruments.  The  fair-value
method requires that  compensation cost be measured on the value of the award at
the grant date, and recognized over the service period.  SFAS No. 123 as amended
allows  companies to either account for  stock-based  compensation  to employees
under the  provisions  of SFAS No.  123 as amended  or under the  provisions  of
Accounting   Principles   Board   (APB)   Opinion   No.   25  and  its   related
interpretations.  The  Company  accounts  for its  stock-based  compensation  to
employees in accordance with the provisions of APB Opinion No. 25.

The Company has  recorded  deferred  compensation  for the  difference,  if any,
between the exercise  price and the deemed fair market value of the common stock
for  financial  reporting  purposes of stock options  granted to employees.  The
compensation expense related to such grants is amortized over the vesting period
of the related stock options on a straight-line basis.

The  Company  accounts  for  equity   instruments  issued  to  non-employees  in
accordance with the provisions of SFAS No. 123, as amended,  and Emerging Issues
Task Force (EITF) Issue No. 96-18  Accounting  for Equity  Instruments  that Are
Issued to Other than  Employees for Acquiring,  or in Conjunction  with Selling,
Goods or Services.

Had the  Company  determined  compensation  cost  based on the fair value at the
grant date for its employee  stock  options and  purchase  rights under SFAS No.
123, the Company's  net loss would have been  increased to the pro forma amounts
indicated below for the years ended December 31:





                                                                            2003                 2002
                                                                       ----------------     ----------------
                                                                       (in thousands)       (in thousands)
                                                                                      

Net loss attributable to common stockholders, as reported               $       (26,474)    $        (13,417)
Add: Stock-based employee compensation expense included in
   reported net loss, net of related tax effects                                  1,082                  131
Less: Stock-based employee compensation expense determined under                 (2,794)                 (355)
                                                                       -----------------    -----------------
   fair value based method for all awards, net of related tax
   effects

Pro forma net loss attributable to common stockholders                  $       (28,186)    $        (13,641)
                                                                       ==================   =================
Net loss per share attributable to common stockholders:
    As reported                                                         $         (0.47)    $          (5.18)
    Pro forma                                                           $         (0.50)    $          (5.26)



Net Loss Per Share Attributable to Common Stockholders

Basic net loss per share is computed by dividing net loss attributable to common
stockholders  by  the  weighted   average  number  of  shares  of  common  stock
outstanding  during the year.  The  computation  of diluted  earnings per common
share is similar to the computation of basic net loss per share  attributable to
common  stockholders,  except that the  denominator is increased for the assumed
conversion of convertible securities and the exercise of options and warrants to
the extent they are  dilutive  using the  treasury  stock  method.  The weighted
average  shares  used  in  computing  basic  and  diluted  net  loss  per  share
attributable  to  common  stockholders  were the same  for the two  years  ended
December 31, 2003 and 2002.  Options and warrants for 707,783 shares and 717,970
shares were excluded from the computation of loss per share at December 31, 2003
and 2002, respectively, as their effect is anti-dilutive. The difference between
net loss and net loss  attributable  to common  stockholders  relates to accrued
dividends  on the  Company's  mandatorily  redeemable  Series A preferred  stock
discussed in Note 10.

Concentrations of Credit Risk

Financial  instruments,  which potentially subject the Company to concentrations
of credit  risk,  consist  principally  of cash and cash  equivalents  and trade
accounts receivable.  The Company has investment policies that limit investments
to short-term,  low-risk investments.  Concentration of credit risk with respect
to trade accounts  receivable are limited due to the fact that the Company sells
its products primarily to established distributors and laboratories and requires
prepayment for certain orders where the relationship  between the parties is not
well-established.

Use of Estimates

The preparation of financial  statements in conformity  with generally  accepted
accounting principles requires management to make estimates and assumptions that
affect the  reported  amounts  of assets  and  liabilities,  the  disclosure  of
contingent assets and liabilities at the date of the financial  statements,  and
the  reported  amounts of revenues  and expenses  during the  reporting  period.
Actual results could differ from those estimates.


                                      F-12


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Risks and Uncertainties

Calypte purchases certain raw materials and components used in manufacturing its
products  from a number of suppliers,  but relies on single  sources for certain
other components. Establishment of additional or replacement suppliers for these
components  cannot be  accomplished  quickly.  Any delay or  interruption in the
supply of these  components  could have a material adverse effect on the Company
by  significantly  impairing its ability to  manufacture  products in sufficient
quantities  to meet  commercial  sales  demand.  Additionally,  if the Company's
financial  condition  reduces its ability to pay for critical  components  or to
make royalty payments under its license agreements, suppliers may delay or cease
selling critical  components to it or its rights to use license agreements could
be jeopardized, both of which could also impair its ability to manufacture.

Comprehensive Loss

The Company has no  components  of other  comprehensive  loss other than its net
loss, and, accordingly, its comprehensive loss is equivalent to its net loss for
all periods presented.

Segment and Geographic Information

SFAS  No.  131  "Disclosures   about  Segments  of  an  Enterprise  and  Related
Information"  requires an enterprise to report segment  information based on how
management  internally evaluates the operating performance of its business units
(segments). The Company's operations are currently confined to a single business
segment: the development and sale of HIV diagnostics.

Substantially all of the Company's sales through 2003 have been to United States
customers.  Sales  to  international  customers  accounted  for 5% and 4% of the
Company's revenues in 2003 and 2002, respectively.

Sales to two major domestic  customers  accounted for approximately 50% of total
net  sales  for the year  ended  December  31,  2003.  Sales to those  customers
accounted for  approximately 36% and 14% of the Company's 2003 net sales and 24%
and 11%,  respectively,  of the Company's net sales in 2002. The Company made no
sales in 2003 to a customer who had accounted for  approximately  17% of its net
sales in 2002.

Reclassifications

Certain  previously-reported  amounts  in the  financial  statements  have  been
reclassified to conform to the current year presentation.

Newly-Adopted Accounting Pronouncements

In April  2002,  the  Financial  Accounting  Standards  Board,  ("FASB")  issued
Statement of Financial  Accounting  Standards  ("SFAS") No. 145,  "Rescission of
FASB  Statements  No. 4, 44, and 64,  Amendment  of FASB  Statement  No. 13, and
Technical   Corrections."   SFAS  No.  145   requires   gains  and  losses  from
extinguishment  of debt to be  classified as an  extraordinary  item only if the
criteria in APB No. 30 have been met.  The Company  adopted SFAS 145 in 2003 and
as a result, the gain from settlement of debt in 2002 has been reclassified from
an extraordinary gain to an ordinary gain.

In June 2002,  the FASB issued SFAS No. 146,  "Accounting  for Costs  Associated
with  Exit or  Disposal  Activities."  SFAS No.  146  addresses  accounting  and
reporting for costs associated with exit and disposal  activities and supersedes
Emerging  Issues Task Force Issue No. 94-3 (EITF 94-3),  "Liability  Recognition
for Certain  Employee  Termination  Benefits and Other Costs to Exit an Activity
(including  Certain Costs Incurred in a  Restructuring)."  SFAS No. 146 requires
that a liability  for a cost  associated  with an exit or  disposal  activity be
recognized  when the liability is incurred,  as defined by the Statement.  Under
EITF 94-3,  an exit cost was  recognized  at the date an entity  committed to an
exit plan.  Additionally,  SFAS No. 146 provides  that exit and  disposal  costs
should be  measured  at fair  value and that the  associated  liability  will be
adjusted for changes in estimated cash flows. The provisions of SFAS No. 146 are
effective for exit and disposal activities that are initiated after December 31,
2002. This standard did not have a material impact on the Company's consolidated
financial position or results of operations,  however the Company has recognized
exit costs associated with the closure of its Alameda,  California manufacturing
facility in accordance with the standard.

In May 2003,  the FASB issued SFAS No. 150,  "Accounting  for Certain  Financial
Instruments with  Characteristics  of Both Liabilities and Equity." SFAS No. 150
establishes  standards  for  how  an  issuer  classifies  and  measures  certain
financial  instruments with characteristics of both liabilities and equity, many
of which have been previously  classified as equity or on the  "mezzanine".  The
Company adopted this standard during the third quarter of 2003 and, accordingly,
has classified its  mandatorily  redeemable  Series A preferred  stock as a long
term  liability  for all periods  presented.  Additionally,  effective  with the
adoption and on a prospective basis, the dividend on the mandatorily  redeemable
Series A preferred stock is classified as interest  expense in the  consolidated
statement of operations.


                                      F-13


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Recent Accounting Pronouncements

In April  2003,  the  FASB  issued  SFAS  149,  Amendment  of  Statement  133 on
Derivative  Instruments  and  Hedging  Activities.  This  statement  amends  and
clarifies  the  financial  accounting  and  reporting   requirements,   as  were
originally  established  in SFAS 133,  for  derivative  instruments  and hedging
activities.  SFAS 149 provides greater clarification of the characteristics of a
derivative  instrument so that  contracts with similar  characteristics  will be
accounted for  consistently.  This statement is effective for contracts  entered
into or  modified  after June 30,  2003,  as well as for  hedging  relationships
designated after June 30, 2003,  excluding  certain  implementation  issues that
have been effective prior to this date under SFAS 133. The Company's adoption of
this  statement  has not had a material  impact on our results of  operations or
financial condition.

In January 2003, the FASB issued FASB Interpretation (FIN) No. 46, Consolidation
of Variable Interest Entities, an Interpretation of Accounting Research Bulletin
No. 51.  FIN 46  provides  guidance  on how to apply the  controlling  financial
interest criteria in ARB 51 to variable  interest  entities  ("VIE").  Given the
complexity  of FIN 46 and  implementation  issues after its  original  issuance,
particularly  with  respect to its scope and  application  of the  consolidation
model,  the FASB staff issued several FASB staff  positions  throughout  2003 to
clarify the Board's  intent on certain of the  interpretation's  provisions.  In
December 2003, the Board issued FIN 46R to address certain technical corrections
and clarify the implementation issues that had arisen.

In  general,  a VIE is subject to  consolidation  if it has (1) an  insufficient
amount of equity for the  entity to carry on its  principal  operations  without
additional  subordinated  financial support provided by any parties, (2) a group
of equity owners that are unable to make decisions about the entity's activities
or (3) equity that does not absorb the  entity's  losses or receive the entity's
benefits. Variable interest entities are to be evaluated for consolidation based
on all  contractual,  ownership or other  interests that expose their holders to
the  risks and  rewards  of the  entity.  These  interests  may  include  equity
investments,  loans,  leases,  derivatives,  guarantees,  service and management
contracts and other instruments whose values change with changes in the VIE. Any
of these interests may require its holder to consolidate the entity.  The holder
of a variable  interest that receives the majority of the potential  variability
in gains or losses of the VIE is the VIE's primary  beneficiary  and is required
to  consolidate  the VIE.  FIN 46R became  effective  immediately  for  entities
created  after  January 31, 2003. It applies in the first fiscal year or interim
period beginning after December 15, 2003, to variable interest entities in which
an  enterprise  holds a variable  interest that it acquired  before  February 1,
2003. The Company has  determined  that the adoption of the provisions of FIN 46
will not have an impact upon its financial condition or results of operations.

(3)  Inventory

Inventory  as of  December  31, 2003 and 2002  consisted  of the  following  (in
thousands):

                                                              2003      2002
                                                              ----      ----

Raw materials                                              $    708  $    197
Work-in-process                                                 962       443
Finished goods (including consigned inventory of $101
   at December 31, 2002)                                        483       323
                                                           --------  --------

Total Inventory                                             $ 2,153   $   963
                                                            =======   =======


                                      F-14


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


(4)  Property and Equipment

Property  and  equipment  as of  December  31,  2003 and 2002  consisted  of the
following (in thousands):

                                                        2003             2002
                                                        ----             ----

Computer equipment                                 $      424       $      766
Machinery and equipment                                 3,582            3,344
Furniture and fixtures                                    289              276
Leasehold improvements                                  1,227            1,132
                                                     --------        ---------

                                                        5,522            5,518
Accumulated depreciation and amortization              (4,795)          (4,601)
                                                    ---------        ---------

Property and equipment, net                         $     727        $     917
                                                    =========        =========

The Company  recognized  depreciation  expense of $527,000  and $512,000 for the
years  ended  December  2003  and  2002,  respectively.  Included  in  leasehold
improvements is approximately  $90,000 related to improvements in the Rockville,
Maryland  facility.  The  Company  has  committed  approximately  an  additional
$400,000 in 2004 to complete leasehold improvements at this facility.

(5)  Accounts payable and accrued expenses

Accounts payable and accrued expenses as of December 31, 2003 and 2002 consisted
of the following (in thousands):

                                                         2003             2002
                                                         ----             ----

Trade accounts payable                               $   2,189        $   3,462
Accrued royalties                                          582              338
Accrued salary and vacation pay                            125              240
Accrued interest (including non-cash liquidated
damages related to delayed registration of stock
underlying convertible and other securities of $271        308              789
  and $546 in 2003 and 2002, respectively)
Other                                                    1,118              316
                                                       -------       ----------

Total accounts payable and accrued expenses           $  4,322         $  5,145
                                                      ========         ========

(6)  Notes and Debentures Payable

The table below summarizes  notes and debentures  payable activity for the years
ended December 31, 2003 and 2002 (in thousands).



                                                                                                   Discount      Net
                                   Balance                                            Balance         at      Balance at
                                  12/31/02    Additions     Payments    Conversions    12/31/03    12/31/03    12/31/03
                                  --------    ---------     --------    -----------    --------    --------    --------
                                                                                          
8% Convertible Notes              $  2,985     $    107   $        -    $  (3,092)    $           $           $
                                                                                              -           -            -
8.5% Note - LHC Corporation            393           42        (435)            -             -           -            -
10% Convertible Note - BNC Bach
                                       126            -           -          (126)            -           -            -
10% Convertible Debentures -
   Mercator                              -        1,950           -        (1,058)          892         (36)         856
12% Convertible Debenture -
   Bristol Investment Fund,            465            -           -          (465)            -           -            -
   Ltd.
12% Convertible Debenture -
   Mercator                            850        1,750        (300)       (2,234)           66         (54)          12
                                  --------     --------    --------       --------     --------      -------    --------
Total                             $  4,819     $  3,849     $  (735)    $  (6,975)       $  958       $ (90)      $  868
                                  ========     ========     ========    =========        ========     =====       ======




                                                                            F-15


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002





                                                                                                   Discount       Net
                                 Balance                                               Balance        at      Balance at
                                  12/31/01    Additions     Payments    Conversions   12/31/02     12/31/02    12/31/02
                                  --------    ---------     --------    -----------   ---------     --------    --------
                                                                                           
8% Convertible Notes             $              $ 3,125   $       -     $    (140)     $  2,985   $  (2,052)  $     933
                                         -
8% Convertible Debentures                -          200           -          (200)            -           -           -

8.5% Note - LHC Corporation            411             -        (18)           -            393           -         393
10% Convertible Note - BNC Bach
                                         -         150          (24)            -           126           -         126

12% Convertible Debenture -
   Bristol Investment Fund,              -          525           -           (60)          465        (273)        192
   Ltd.
12% Convertible Debenture -
   Mercator Group, LLP                   -          850           -              -          850        (313)        537
                                 -----------    -------   ---------     -----------   ----------   ---------  ---------

Total current notes payable      $     411     $  4,850    $    (42)    $   (400)      $  4,819     $(2,638)  $  2,181
                                 ===========   =========  ==========    ===========    =========   =========   ========



8% Convertible Notes
Pursuant to Regulation S, Calypte has issued a series of 8% convertible notes in
the  aggregate  principal  amount of $3.125  million  in 2002 and an  additional
$107,000  in 2003.  These  notes have a 24 month term and are  convertible  into
shares  of the  Company's  common  stock  at the  lesser  of $3.00 or 70% of the
average of the three lowest trades during the 30 day period preceding conversion
and are  convertible  at any  time  prior  to  maturity.  Calypte  has  received
approximately $2.6 million in proceeds after deducting fees and costs associated
with these notes. The note issued during 2003  represented  accrued interest due
on one of the previous notes.

During 2003,  various holders of the 8% convertible  notes converted  $3,092,000
face value plus accrued interest and liquidated  damages  resulting from delayed
registration  of the  underlying  common stock into  approximately  45.7 million
shares of the Company's common stock at conversion prices ranging from $1.014 to
$0.077 per share.  During  2002,  various  holders of the 8%  convertible  notes
converted  $140,000  face value plus accrued  interest  into  approximately  0.3
million shares of the Company's  common stock at a conversion price of $0.49 per
share.

The  Company  was  required  to file a  registration  statement  for the  shares
underlying the convertible notes within 30 days of the closing date. The Company
did not file a registration  statement for those shares until July 8, 2003. As a
result of the delayed registration,  the Company was required to pay, in cash or
stock, at the subscribers'  option,  liquidated damages in an amount equal to 2%
of the note  principal  for each month of delay.  Between July 2002 and December
31, 2003,  the Company  recognized  an aggregate  of  approximately  $768,000 as
liquidated damages  attributable to these notes,  substantially all of which was
recorded as non-cash  interest  expense.  The shares underlying these agreements
were  included in the Company's S-2  registration  statement  filed with the SEC
that became effective on July 18, 2003.



                                      F-16


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

The  following  table  sets  forth  the  investors  who  subscribed  to  the  8%
convertible notes in 2003 and 2002:




                                                                Transaction        Calypte           Shares
    Investor                                    Amount                Date      Closing Price   Issued (000) (1)
    --------                                    ------        ------------      -------------   ----------------
                                                                                    
    8% Convertible Notes
    2003

    Alpha Capital Aktiengesellshaft              $ 107,000          5/9/03            $ 0.63           1,302.5
                                                 =========                                             =======

    2002

    Alpha Capital Aktiengesellshaft              $ 500,000        5/24/02             $ 3.60           7,260.7
    Stonestreet Limited Partnership                500,000        5/24/02             $ 3.60           7,075.7
    Filter International Ltd.                      150,000        5/24/02             $ 3.60           2,452.4
    Camden International Ltd.                      350,000        5/24/02             $ 3.60           5,279.1
    Domino International Ltd.                      150,000        5/24/02             $ 3.60           1,767.4
    Thunderbird Global Corporation                  75,000        5/24/02             $ 3.60           1,083.1
    BNC Bach International Ltd.                    200,000        5/24/02             $ 3.60           2,463.8
    Excalibur Limited Partnership                  200,000        5/24/02             $ 3.60           1,678.9
    Standard Resources Ltd.                        100,000        5/24/02             $ 3.60           1,542.5
    SDS Capital International Ltd.                 300,000        7/10/02            $ 10.20           4,062.1
    Camden International Ltd.                      100,000        7/10/02            $ 10.20           1,707.9
    Excalibur Limited Partnership                  250,000        7/24/02             $ 6.60           4,238.3
    Stonestreet Limited Partnership                250,000        8/21/02             $ 3.90           4,042.2
                                                -----                                                 ---------

                                                $3,125,000                                            44,654.1
                                                ==========                                            ========



- -----------
(1)  includes  shares issued for accrued  interest and liquidated  damages as of
     December 31, 2003

8% Convertible Debentures
In 2002, Calypte issued two (2) 8% convertible  debentures in the aggregate face
amount  of  $200,000  pursuant  to  Regulation  S. One of these  debentures  was
convertible  into shares of the Company's  common stock at a 20% discount to the
average  closing price for the five trading days prior to conversion,  the other
at a 30% discount,  and each had a conversion floor of $3.00 per share.  Both of
these  debentures  have been  converted  into shares of Calypte's  common stock.
Calypte  received cash of $180,000,  net of fees, from the issuance of these two
debentures. The Company agreed to use its best efforts to register the shares of
common  stock  and  provided  cost  free  piggyback  registration  rights to the
debenture  holders.  There were no defined  penalties  and/or time  requirements
imposed on Calypte with respect to filing and achieving the  effectiveness  of a
registration  statement for the underlying  shares.  The shares underlying these
agreements were included in the Company's S-2 registration  statement filed with
the SEC that became effective on July 18, 2003.

The following table lists the individual investors and transaction dates related
to the issuance of the 8% convertible debentures:




                                                                       Calypte
                                                    Transaction        Closing             Shares
    8% Convertible Debentures       Amount              Date            Price         Issued  (1)
    -------------------------       ------              ----            -----         -----------
                                                                          
    Su So                             $100,000         6/17/02            $4.20            36,667
    Jason Arasheben                   $100,000         7/03/02            $8.10            15,826



(1)  includes fee shares

The Company  determined  that the above 8% convertible  notes and 8% convertible
debentures  were issued with  beneficial  conversion  features.  The  beneficial
conversion  features  were  recognized  by  allocating  an  amount  equal to the
intrinsic  value of each feature to note or  debenture  discount to be amortized
over the life of the note or  debenture,  subject  to a  limitation  of the face
amount  of the  respective  note or  debenture.  Upon  earlier  conversion,  the
proportionate share of unamortized discount was charged to interest expense. The
intrinsic  value was calculated at the date of issue as the  difference  between
the  conversion  price  of the  note or  debenture  and the  fair  value  of the
Company's  common  stock  into  which  the note or  debenture  was  convertible,
multiplied  by the  number  of  common  shares  into  which  the  debenture  was
convertible.  In the case of the 8% convertible notes, the beneficial conversion
feature was  generally  limited by the face amount of the note.  The  beneficial
conversion  feature for each of the 8% convertible  debentures was less than the
face amount of the debenture, however, both debentures were converted soon after
issuance.


                                      F-17


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

8.5% Note

In August 2001, the Company executed a promissory note in the amount of $400,000
to the  parent  company  of its  then-largest  stockholder.  The  note  required
interest at 8.5% per annum and principal plus accrued  interest was due no later
than  September 14, 2001. In December  2001, the parties agreed to execute a new
note in the amount of $411,000,  representing  the unpaid  principal and accrued
but unpaid interest on the previous note. The note required interest at 8.5% per
annum and principal  payments  were due beginning in February  2002. In February
2002, the Company  renegotiated  the payment terms to require monthly  principal
payments of $17,500 in February and March 2002, increasing to $35,000 thereafter
unless  and  until  the  Company  secured  at least  $2  million  in  additional
financing,  excluding the $850,000 of 12%  convertible  debentures  and warrants
discussed below, at which time a $200,000  principal  payment would be required.
The Company made the payment  required on February 28, 2002. In March 2002,  the
Company further  renegotiated  the repayment terms of this note,  suspending any
required  principal  or  interest  payments  until 30 days  after the  Company's
registration  statement for the 12% convertible  debentures  described below, at
which time the  Company was  required  to make a $200,000  payment and to resume
making monthly payments of $35,000 until the principal and accrued interest were
repaid in full.  On February 28, 2003,  the Company and the investor  executed a
new note in the  amount of  $435,000,  representing  the  unpaid  principal  and
accrued but unpaid  interest on the December 2001 note between the parties.  The
Company  renegotiated  the  terms  of the  December  2001  note due to a lack of
available  funds and to avoid a  default.  The terms of the  February  2003 note
required  monthly  principal  payments of $17,500 plus  interest from March 2003
through May 2003,  increasing to $35,000  monthly,  plus  interest,  thereafter,
until the Company secured at least $5,000,000 in additional financing,  at which
time the remaining  outstanding  balance  became due and payable.  The remaining
balance of the note was repaid in  September  2003  following  the  securing  of
financing.

10% Convertible Note

On May 14, 2002,  the Company  issued,  pursuant to Regulation S, a $150,000 10%
convertible  promissory  note to BNC Bach  International  Ltd.  ("BNC Bach"),  a
private  investment fund that is a related party to Townsbury  Investments  Ltd.
("Townsbury"), the investor in a prior investment that provided the Company with
financing pursuant to an equity line. The closing price for Calypte common stock
on May 14, 2002 was $4.20.  This note was originally  convertible into shares of
the Company's common stock at $1.50 per share and was due on the earlier of July
14, 2002 or the  settlement  date of Calypte's  next  drawdown  under the equity
line. On July 14, 2002,  Calypte and BNC Bach agreed to extend the maturity date
of the note from July 14,  2002 to  December  31,  2002.  The  market  price for
Calypte common stock was $10.80 on July 14, 2002. In return for the extension of
the maturity date, Calypte agreed to amend the conversion price of the note from
$1.50  per share to the  lesser of (a) $1.50 per share or (b) 60% of the  lowest
three  closing bid prices of Calypte's  common stock during the 22 business days
prior to the date BNC Bach notifies Calypte of its election to convert the note.
No  accounting  adjustments  were  required as a result of the  extension of the
note's maturity or the amendment of the conversion  price. In December 2002, the
Company repaid approximately  $24,000 of the outstanding  principal plus accrued
interest from the proceeds of a draw down under its equity line with Townsbury.

On January 15, 2003, the Company and BNC Bach agreed to extend the maturity date
of the Note to March 17,  2003.  On March 17,  2003,  the  Company  and BNC Bach
agreed to further  extend the maturity  date to April 4, 2003. On April 2, 2003,
the Company and BNC Bach agreed to extend the  maturity  date of the Note to May
5, 2003.  On April 30,  2003,  the Company and BNC Bach  amended the  conversion
price to eliminate a conversion price ceiling of $1.50 per share and to increase
the discount  applicable to the conversion  price from 40% to 50%. In return for
this  modification  of the  conversion  price,  BNC Bach  agreed to  extend  the
maturity of the note until May 10, 2004. No accounting adjustments were required
as a result of any of the extensions of the note's maturity.  In September 2003,
BNC Bach converted the remaining  $126,000 face value plus accrued interest into
approximately  2.2 million shares of the Company's  common stock at a conversion
price of $0.0612 per share.

10%  Convertible  Debentures-Mercator  Focus Fund,  Mercator  Momentum  Fund and
Mercator Momentum Fund III

On January 14, 2003, when the market price of the Company's stock was $1.92, the
Company  issued a $1,000,000 10%  convertible  debenture to Mercator Focus Fund,
L.P.  ("Focus  Fund")  pursuant to  Regulation  S and  received  net proceeds of
$818,000  net of fees and  expenses.  $308,000 of the proceeds was used to repay
the $300,000 October 2002 12% convertible  debenture and accrued interest issued
to Mercator  Momentum Fund L.P.  ("MMF").  The debenture is convertible into the
Company's  common stock at 80% of the average of the three lowest trades for the
20 days preceding  conversion,  but not more than $3.00.  Under the terms of the
debenture agreement, the Company agreed to file a registration statement for the
shares of common stock  underlying  the debenture  within 30 days of the closing
date and use its reasonable  best commercial  efforts to cause the  registration
statement  to be  declared  effective  within 120 days of the closing  date.  On
February 14, 2003, when the price of the Company's  common stock was $2.01,  the
Company and Focus Fund agreed to extend the  registration  period until April 4,
2003.  On March 31, 2003,  when the market  price of Calypte's  common stock was
$0.885, Focus Fund granted the Company an additional 30-day extension, until May
5,  2003,  in which to  register  the  shares of common  stock  underlying  this
financing.  On May 1, 2003, when the market price of Calypte's  common stock was
$0.711, the Company received a further extension until July 1, 2003. On June 26,
2003, when the trading price for the Company's stock was $0.36 per share,  Focus
Fund agreed to extend the period for filing the registration  statement  through
July 15,  2003.  The shares  underlying  this  agreement  were  included  in the
Company's S-2 registration statement that was filed with the SEC on July 8, 2003
and which became  effective on July 18, 2003.  During the third quarter of 2003,
Focus Fund  converted  $422,000 face value plus accrued  interest and $43,000 of
liquidated  damages due to delayed  registration into  approximately 5.8 million
shares of the Company's common stock at conversion  prices ranging from $0.07 to
$0.09 per share.  See Note 18 for  information  regarding  the  extension of the
maturity of this note.


                                      F-18


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

On January 30, 2003, when the market price of the Company's stock was $1.86, the
Company  issued  a  $450,000  10%  convertible  debenture  to  MMF  pursuant  to
Regulation S and received  net proceeds of $440,000,  net of fees and  expenses.
The  debenture  is  convertible  into the  Company's  common stock at 80% of the
average of the three lowest trades for the 20 days preceding conversion, but not
more than $3.00. Under the terms of the debenture agreement,  the Company agreed
to file a registration  statement for the shares of common stock  underlying the
debenture  within  30 days of the  closing  date  and  use its  reasonable  best
commercial efforts to cause the registration  statement to be declared effective
within 120 days of the closing date. On February 14, 2003, when the price of the
Company's  common  stock was  $2.01,  the  Company  and MMF agreed to extend the
registration   period  of  the  underlying  common  stock  as  required  in  the
Registration  Rights  Agreement until April 4, 2003. On March 31, 2003, when the
market  price of Calypte's  common stock was $0.885,  MMF granted the Company an
additional  extension,  until May 5, 2003,  in which to  register  the shares of
common stock underlying this financing. On May 1, 2003, when the market price of
Calypte's  common  stock was $0.711,  the Company  received a further  extension
until July 1, 2003.  On June 26, 2003,  when the trading price for the Company's
stock was $0.36 per  share,  MMF  agreed to extend  the  period  for  filing the
registration  statement  through  July 15,  2003.  The  shares  underlying  this
agreement  were included in the Company's S-2  registration  statement  that was
filed with the SEC on July 8, 2003 and which became  effective on July 18, 2003.
During the third and fourth quarters of 2003, MMF converted  $358,000 face value
plus  accrued  interest  and  $29,000  of  liquidated  damages  due  to  delayed
registration into approximately 2.6 million shares of the Company's common stock
at  conversion  prices  ranging  from $0.11 to $0.14 per share.  See Note 18 for
information regarding the extension of the maturity of this note.

On March 13, 2003, when the market price of the Company's  stock was $1.50,  the
Company issued a $400,000 10% convertible debenture to Focus Fund and a $100,000
10% convertible  debenture to Mercator  Momentum Fund III, L.P.  ("Momentum Fund
III"),  each pursuant to  Regulation  S, and received  aggregate net proceeds of
$400,000,  net of fees and  expenses.  Each  debenture is  convertible  into the
Company's  common stock at 65% of the average of the three lowest trades for the
20 days preceding  conversion,  but not more than $2.10.  Under the terms of the
debenture  agreements,  Calypte agreed to file a registration  statement for the
shares of common stock  underlying the debentures  within 30 days of the closing
date and use its reasonable  best commercial  efforts to cause the  registration
statement to be declared effective within 120 days of the closing date. On April
11,  2003,  when the market  price of  Calypte's  common  stock was $0.735,  the
Company  received an extension until May 5, 2003 in which to register the shares
of common stock underlying this financing. On May 1, 2003, when the market price
of Calypte's  common stock was $0.711,  the Company  received an extension until
July 1, 2003. On June 26, 2003,  when the trading price for the Company's  stock
was $0.36 per  share,  Focus  Fund and  Momentum  Fund III  agreed to extend the
period for filing the registration  statement  through July 15, 2003. The shares
underlying  this  agreement  were  included in the  Company's  S-2  registration
statement that was filed with the SEC on July 8, 2003 and which became effective
on July 18, 2003. During the third quarter of 2003, Focus Fund and Momentum Fund
III  converted  an aggregate  of $278,000  face value plus accrued  interest and
$50,000 of liquidated damages due to delayed registration into approximately 4.1
million shares of the Company's  common stock at conversion  prices ranging from
$0.07 to $0.10 per share. See Note 18 for information regarding the extension of
the maturity of this note.

The Company  determined that each of the 10%  convertible  debentures was issued
with a beneficial  conversion feature. The intrinsic value was calculated at the
date of issue as the difference  between the  conversion  price of the debenture
and the fair value of the  Company's  common stock into which the  debenture was
convertible,  multiplied by the number of common shares into which the debenture
was  convertible,  limited by the face amount of the debenture.  The Company has
treated the beneficial  conversion  features as a discount to the face amount of
the  debentures  and  is  amortizing  them  over  the  term  of  the  respective
debentures.  Upon  conversion  of  all  or  a  portion  of  the  debenture,  the
proportionate  share of  unamortized  discount  has  been  charged  to  interest
expense.

12% Convertible Debentures

On February 11, 2002, the Company signed a securities  purchase agreement with a
private investment fund, Bristol Investment Fund, Ltd.  ("Bristol")  pursuant to
which Bristol agreed to purchase two 12% secured  convertible  debentures for an
aggregate of $850,000,  each of which matures two years after its issuance.  The
first debenture,  in the amount of $425,000,  was purchased by Bristol, under an
exemption  provided  by  Regulation  S, on  February  11,  2002 and the  Company
received  net  proceeds  of  $368,000.  The closing  price for Calypte  stock on
February 11, 2002 was $7.50.  On May 10, 2002,  Calypte issued a second $100,000
12%  convertible  debenture  to  Bristol,  also under an  exemption  provided by
Regulation S, and received net proceeds of $90,000.  This debenture has the same
terms as those of the initial  debenture  and reduced the  remaining  commitment
under the agreement to $325,000.  The closing price for Calypte stock on May 10,
2002 was $0.90.  The outstanding  debentures bear interest at the annual rate of
12%, payable  quarterly in common stock or cash at Bristol's  option.  Under the
terms of the  debentures,  Bristol  could elect at any time prior to maturity to
convert the balance  outstanding on the debentures  into shares of the Company's
common stock.  The  conversion  price,  as modified,  for any  debenture  issued
pursuant  to this  agreement  is equal to the  lesser of (i) the  average of the
lowest three closing bid prices during the 20 trading days immediately  prior to
the  conversion  date  discounted  by 40% and (ii)  $1.50,  subject  to  certain
anti-dilution provisions.


                                      F-19


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

During May 2002,  Bristol converted a principal amount of approximately  $60,000
plus accrued interest into 148,747 shares of the Company's common stock at $0.42
per  share.   Subsequent  to  the  February  14,  2003  effective  date  of  the
registration  statement on Form S-2/A (No. 6) which registered  shares of common
stock  underlying the 12% Convertible  Debentures in the amount of $525,000 that
we issued to Bristol Investment Fund, Ltd. ("Bristol") in February 2002, Bristol
converted  its  remaining  balance due under the  debentures,  an  aggregate  of
$465,000 face value,  plus accrued  interest and $122,000 of liquidated  damages
due to  delayed  registration,  into  approximately  0.9  million  shares of the
Company's  common stock at conversion  prices  ranging from $0.525 to $0.966 per
share during the first half of 2003.  The debenture  discounts  were  eliminated
concurrent with the conversions.

In conjunction  with this  transaction,  the Company issued a Class A warrant to
purchase  up to  56,667  shares of its  common  stock.  The Class A warrant  was
exercisable  for a period of seven  years  after  issuance  at a price per share
equal to the lesser of (i) the average of the lowest three trading prices during
the 20 trading days immediately prior to the exercise date discounted by 30% and
(ii) $3.45. Bristol exercised the warrant in September 2003 at a price of $0.077
per share.. The warrant was valued on the date of issue at $6.30 per share using
the Black-Scholes option-pricing model with the following assumptions:  expected
dividend yield of 0.0%; risk free interest rate of 4.7%, the contractual life of
7 years,  and volatility of 80%. As additional  fees for this  transaction,  the
Company also issued a warrant to purchase 2,833 shares of its common stock.  The
warrant to purchase the 2,833 shares has the same terms and the same fair market
value as the Class A warrant and has not yet been exercised.

The  Company  also issued  Bristol a Class B warrant to  purchase an  additional
400,000  shares of its  common  stock.  Upon the  effectiveness  of the  related
registration  statement for the shares  underlying the Class B warrant,  Bristol
was required to exercise the Class B warrant in  conjunction  with the mandatory
monthly  conversion of its debentures so that each month the Company would issue
to Bristol, pursuant to the Class B warrant, a number of shares equal to 150% of
the  shares  issued  to the  fund  pursuant  to the  monthly  conversion  of the
debentures.  The Class B warrant was  exercisable  at a price per share equal to
the lesser of (i) the average of the lowest three  trading  prices during the 20
trading days  immediately  prior to the exercise date discounted by 30% and (ii)
$6.45.  The  Company was not  permitted  to include  the shares  underlying  the
400,000 share Class B warrant in its registration statement, and Bristol was not
obligated  to begin  exercising  the warrant  until such time as the  underlying
shares  were  registered,  however  Bristol  exercised  it in  its  entirety  in
September  2003 at a price of $0.0825  per share.  The warrant was valued on the
date of issue at $4.20 per share using the  Black-Scholes  option-pricing  model
with the  following  assumptions:  expected  dividend  yield of 0.0%;  risk free
interest rate of 2.2%, the contractual life of 1 year, and volatility of 80%.

In accordance with EITF 00-19,  "Accounting for Derivative Financial Instruments
Indexed To, and Potentially Settled In, a Company's Own Stock," and the terms of
the Class A and Class B warrants  issued to Bristol in conjunction  with the 12%
debentures in February 2002, the fair value of the warrants was accounted for as
a liability,  with an  offsetting  discount to the  carrying  value of the first
$425,000  debenture,  which was to be amortized as interest  expense over the 24
month term of the debenture. The combined fair values of the Class A and Class B
warrants treated as a discount to the debenture  exceeded the $425,000 amount of
the debenture.  Accordingly,  the aggregate amount of the warrant  liability and
the offsetting debenture discount recorded attributable to the Class A and Class
B warrants was limited to $425,000 at the time of issuance.  In September  2003,
Bristol  exercised  both the Class A and Class B warrants.  The  Company  issued
456,667  shares of its  common  stock and  received  proceeds  of  approximately
$38,000. The Company reclassified the warrant liability to equity at the time of
the exercise of the warrants.  Until the warrants were exercised,  the liability
was marked to market  through  earnings.  The  Company  recorded a net  non-cash
interest  expense  reduction  of  approximately  $275,000  attributable  to  the
re-measurement  of the warrant  liability for the year ended  December 31, 2003.
Non-cash  interest  income in 2002  attributable  to the  re-measurement  of the
warrant liability was approximately  $70,000. This is recorded as a reduction of
non-cash interest expense in the financial statements.

The  Company did not receive  any  additional  consideration  over and above the
negotiated price for the debentures in connection with the issuance of the Class
A and B warrants.  The Class A and B warrants were contemplated and considered a
part of the negotiated  transaction  for the debentures  issued to Bristol.  The
Class A and Class B  warrants  were  intended  to act as  consideration  for the
investment  by Bristol and also  provided the Company with  immediate  cash upon
their  exercise.  The Class B warrants were intended to provide the Company with
cash over a one year period  following  the effective  date of the  registration
statement for the shares  underlying  the  debentures  and warrants.  Management
believed  that  the  terms of the  financing  were on the  best  possible  terms
available as a result of the Company's tenuous  financial  condition at the time
of the arrangement.


                                      F-20


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

The Company determined that both of the debentures issued to Bristol were issued
with a  beneficial  conversion  feature.  Upon  conversion  of a portion  of the
debenture,  the Company charged the proportionate share of unamortized  discount
to interest expense.  The intrinsic value was calculated at the date of issue as
the difference  between the conversion price of the debenture and the fair value
of the  Company's  common  stock  into  which  the  debenture  was  convertible,
multiplied  by the  number  of  common  shares  into  which  the  debenture  was
convertible.  Because the Company also issued  warrants in conjunction  with the
first  $425,000  debenture,  as  described  above,  the value of the  beneficial
conversion  feature was not accorded  treatment as a discount to the  debenture,
since the valuation of the accompanying  warrants had reduced the carrying value
of the  debenture to zero at the time of  issuance.  The  beneficial  conversion
feature attributable to the second $100,000 debenture was limited to $100,000 by
the face amount of the  debenture and recorded as a discount to the debenture to
be amortized to interest expense over the life of the debenture.

12% Convertible Debentures

On September 12, 2002, the Company issued a $550,000 12%  convertible  debenture
to MMF. The debenture was convertible  into the Company's common stock at 85% of
the average of the three  lowest  trades for the 20 days  preceding  conversion.
This  debenture was the first tranche of a $2.0 million  commitment  that was to
become available upon the filing and effectiveness of a registration  statement.
Under  the  terms of the  debenture  agreement,  the  Company  agreed  to file a
registration  statement for the shares of common stock  underlying the debenture
within 45 days of the closing date and use its best commercial  efforts to cause
the  registration  statement  to be  declared  effective  within 135 days of the
closing date. At December 31, 2002, the Company had obtained an extension of the
registration  period through  February 18, 2003. On February 14, 2003,  when the
price of the  Company's  common  stock was $2.01,  the Company and MMF agreed to
extend the registration  period until April 4, 2003. On March 31, 2003, when the
market  price of Calypte  common  stock was  $0.885,  the  Company  amended  the
conversion  price to  eliminate a  conversion  price floor of $1.50 per share in
return for an  extension  until May 5, 2003 in which to  register  the shares of
common stock underlying this and certain other Mercator-group financings. On May
1, 2003, when the market price of Calypte's common stock was $0.711, the Company
received a further  extension  until July 1, 2003.  On June 26,  2003,  when the
trading price for the Company's stock was $0.36 per share, MMF agreed to further
extend the period for filing the registration  statement  through July 15, 2003.
The  shares  underlying  this  agreement  were  included  in the  Company's  S-2
registration  statement  that was  filed  with the SEC on July 8,  2003 and that
became effective on July 18, 2003.  During the third quarter 2003, MMF converted
$550,000 face value plus accrued interest into  approximately 4.8 million shares
of the Company's  common stock at conversion  prices ranging from $0.09 to $0.22
per share.

On October 22, 2002, the Company issued a $300,000 12% convertible  debenture to
MMF. The debenture and related  accrued  interest was repaid on January 13, 2003
in conjunction  with the issuance of a $1,000,000 10%  convertible  debenture to
Focus Fund. Upon the repayment,  the Company  charged the remaining  unamortized
amount  of the  beneficial  conversion  feature  of  approximately  $271,000  to
non-cash interest expense.  Additionally, the repayment of this note resulted in
the Company  effectively  repurchasing  a portion of the  beneficial  conversion
feature.  In  situations  in  which a debt  instrument  containing  an  embedded
beneficial conversion feature is extinguished prior to conversion,  a portion of
the debt payment is allocated to the  beneficial  conversion  feature  using the
intrinsic  value of that  conversion  feature at the  extinguishment  date.  Any
residual amount is then allocated to the  convertible  security with the Company
recognizing a gain or loss to remove the remaining liability.  The repurchase of
the beneficial  conversion feature upon repayment of the debenture resulted in a
non-cash gain of $128,000, recorded as other income, during the first quarter of
2003.

On April 29, 2003, when the price of the Company's  common stock was $0.82,  the
Company  issued a $300,000  12%  convertible  debenture  to MMF and recorded net
proceeds of $245,000.  The debenture is  convertible  into the Company's  common
stock at 70% of the average of the three lowest trades for the 20 days preceding
conversion, but not more than $1.20. Under the terms of the debenture agreement,
Calypte agreed to file a  registration  statement for the shares of common stock
underlying  the  debenture  within  30  days  of the  closing  date  and use its
reasonable best  commercial  efforts to cause the  registration  statement to be
declared effective within 120 days of the closing date. On May 1, 2003, when the
market  price of  Calypte's  common  stock was $0.711,  the Company  received an
extension  until July 1, 2003 in which to file a registration  statement for the
underlying  shares.  On June 26, 2003,  when the trading price for the Company's
stock was $0.36 per  share,  MMF  agreed to extend  the  period  for  filing the
registration  statement  through  July 15,  2003.  The  shares  underlying  this
agreement  were included in the Company's S-2  registration  statement  that was
filed with the SEC on July 8, 2003 and which became  effective on July 18, 2003.
During the third  quarter 2003,  MMF converted  $294,000 face value plus accrued
interest  and  $11,000  liquidated  damages  due  to  delayed  registration  was
converted into approximately 3.5 million shares of the Company's common stock at
prices  ranging  from  $0.077 to $0.12 per  share.  See Note 18 for  information
regarding the extension of the maturity of this note.

Pursuant to the Registration  Statement filed on July 8, 2003 and effective July
18, 2003, the Company  registered shares underlying a 12% convertible  debenture
for  $250,000  which  was to be  funded  upon  the  filing  of the  Registration
Statement  and another for $500,000 to be funded by July 25, 2003 as portions of
the  September  2002 $2 million  commitment  by MMF. On July 24, 2003,  when the
market price for the Company's  common stock was $0.115,  the Company issued 12%
convertible debentures in the principal amount of $250,000 each to Alpha Capital
AG, Gamma Opportunity Capital Partners,  LP and Goldplate


                                      F-21


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Investment  Partners,  assignees under the MMF $2 million  commitment  agreement
mentioned above covering these two commitments.  The Company had prepaid $75,000
in fees and received gross proceeds of $750,000.  A portion of the proceeds were
used to repay a $400,000  MMF  advance  from June 6,  2003,  along with a fee of
$12,000.  The debentures were convertible into the Company's common stock at 85%
of the average of the three lowest trades for the 20 days preceding  conversion.
During the third quarter 2003, the investors  converted $750,000 face value plus
accrued interest into  approximately  8.0 million shares of the Company's common
stock at conversion pricees of approximately $0.09 per share.

On September 1, 2003,  when the market price for the Company's  common stock was
$0.498 per share,  the Company  issued a $570,000 12%  convertible  debenture to
Marr  Technologies  BV, an  additional  assignee  from MMF under the $2  million
September 2002 commitment,  and received net proceeds of $570,000. The debenture
was  convertible  into the  Company's  common stock at 85% of the average of the
three lowest trades for the 20 days preceding conversion but not less than $0.11
per share. On September 1, 2003, this note was converted into  approximately 5.2
million shares of the Company's  common stock at a conversion price of $0.11 per
share.

On October 2, 2003,  when the market price for the Company's stock was $1.31 per
share,  the Company issued the final $130,000 of debentures to four assignees of
MMF under the $2 million  September 2002 12% convertible  debenture  commitment,
and  received  net  proceeds of  $130,000.  During  October  2003,  two of these
investors converted $70,000 of principal of these debentures at a price of $0.59
per share and the  Company  issued  approximately  118,400  shares of its common
stock.

The Company determined that the MMF 12% convertible debentures,  including those
issued to MMF assignees,  were each issued with a beneficial conversion feature.
The  intrinsic  value  was  calculated  at the date of  issue as the  difference
between  the  conversion  price  of the  debenture  and the  fair  value  of the
Company's common stock into which the debenture was  convertible,  multiplied by
the number of common shares into which the debenture was convertible, limited by
the face amount of the debenture.  The Company treated the beneficial conversion
feature as a discount to the face amount of the  debenture and amortized it over
the respective  term. Upon conversion of all or a portion of the debenture,  the
proportionate share of unamortized discount is charged to interest expense.

The table below  summarizes the components of net interest  expense  reported in
the consolidated statements of operations (in thousands).




                                                                                    2003             2002
                                                                              ----------       ----------
                                                                                          
Accrued interest on debt instruments                                           $     425         $     332

Non-cash interest expense composed of:
   Amortization and proportional write-off upon conversion of note and
     debenture discounts                                                           4,835             1,188
   Liquidated damages due to delayed registration of shares underlying
     convertible and other securities                                                620               546
   Amortization and proportional write-off upon conversion of deferred
     offering costs                                                                  997               210
   Expense attributable to warrants issued in conjunction with the Marr
     $10 million Promissory Note Agreement                                           322                 -
   Warrant liability mark-to-market adjustment attributable to Bristol
     Class A and Class B warrants                                                   (275)              (70)
   Expense attributable to dividends on mandatorily redeemable Series A
     preferred stock                                                                  60                 -
                                                                               ---------       -----------
Total interest expense                                                             6,984             2,206

Interest income                                                                      (15)               (3)
                                                                               ----------      ------------
Net interest expense                                                             $ 6,969          $  2,203
                                                                               ==========      ============



5% Note Purchase Agreement

On November 13, 2003,  when the market price of the  Company's  common stock was
$0.88 per share, the Company and Marr, its largest stockholder,  entered into an
agreement  in which Marr  agreed to provide the  Company up to an  aggregate  of
$10,000,000 (the "Marr Credit  Facility")  pursuant to promissory notes issuable
to Marr on an as-needed basis by the Company (the "Notes").  Each Note will bear
interest  at the rate of 5% per annum and will have a  12-month  term.  The Marr
Credit  Facility is available  during the period  beginning on February 28, 2004
and ending on May 31, 2004. The aggregate amount available under the Marr Credit
Facility will be  proportionally  reduced by the amount of any equity  financing
obtained by the Company  during the term of


                                      F-22


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

the Marr Credit Facility.  Marr has the right of first refusal to participate in
any such equity  financing  on the same terms as the other  investors.  The Marr
Credit  Facility  provides for earlier  termination as of March 31, 2004, if the
Company fails to have its common stock listed on an  established  stock exchange
by that date. Moreover,  upon the failure to obtain such stock exchange listing,
any  outstanding  Notes would be due and payable on April 30, 2004.  As of March
19,  2004,  no Notes  have  been  issued  under  the Marr  Credit  Facility.  As
consideration for the Marr Credit Facility, the Company issued to Marr a warrant
to purchase 375,000 shares of its common stock at an exercise price of $0.80 per
share.  The  warrant is  immediately  exercisable  and  expires  two years after
issuance on November 12, 2005. The warrant was valued at $0.859 per share on the
date of grant using the  Black-Scholes  option  pricing model with the following
assumptions:  risk-free interest rate of 1.93%; expected dividend rate of 0.00%;
volatility of 316.42%; and expected term of 2 years. The calculated value of the
warrant  was  charged  to  interest  expense.  Refer to Note 18 for  information
regarding an amendment to this agreement in the first quarter of 2004.


(7)  Gain on settlement of trade debt

On February 12, 2002, the Company  completed a  restructuring  of  approximately
$1.7 million of its past due accounts payable and certain other obligations with
27  of  its  trade  creditors.  Under  the  restructuring,  the  Company  issued
approximately 47,000 restricted shares of its common stock at various negotiated
prices per share to trade  creditors  in  satisfaction  of specified  debt.  The
issuance of the shares was pursuant to Regulation D of the  Securities  Act. The
shares issued are now eligible for resale under the  provisions of Rule 144. The
creditors accepted the shares plus deferred cash payments ranging from 0% to 25%
of the outstanding  balance in  satisfaction of $1,699,000 of indebtedness  plus
certain  patent  rights  for  2002.  On the date the  shares  were  issued,  the
aggregate value of the Company's  common stock issued to the trade creditors was
$248,000  and the  aggregate  deferred  cash payment yet to be made to the trade
creditors totaled  $132,000.  During the third quarter of 2002, the Company made
cash  payments  to the  various  creditors  totaling  10% of the  deferred  cash
balance,  or approximately  $13,000,  leaving  $119,000  remaining to be paid at
December 31, 2003 and 2002. The Company  recognized a gain of $1,319,000  during
the first quarter of 2002 as a result of restructuring this indebtedness.


(8)  Lease Commitments

Capital Leases

The Company has acquired  equipment  under  capital  lease  agreements  that are
collateralized  by the related  equipment.  The lease agreements carry effective
interest rates of approximately  18% per annum.  During 1993, the Company issued
stock warrants for the purchase of 1,172 shares of the Company's common stock at
exercise   prices   ranging  from  $150.00  to  $225.00  per  share  as  partial
consideration for obtaining two of the lease agreements.  These warrants expired
in 2003. In 2000,  the Company  exercised its option to renew one of the capital
leases  for an  additional  three  year  term.  In 2001,  the  Company  acquired
laboratory  equipment  under a  capital  lease  having a  four-year  term and an
effective  interest rate of approximately  17.5% per annum. In 2002, the Company
settled its  liability  under one of these leases by issuing 9,804 shares of its
common stock.

Equipment acquired under capital leases included in property and equipment as of
December 31, 2003 and 2002 consisted of the following (in thousands):

                                                   2003             2002
                                              ---------        ----------

Machinery and equipment                        $   1,729        $   1,763
Other                                                 92                92
                                              ----------       -----------

                                                   1,821            1,855
Accumulated depreciation and amortization         (1,802)          (1,790)
                                              ----------       ------------
                                              $       19       $       65
                                              ==========       ============


                                      F-23


 Future minimum lease payments under capital leases as of December 31, 2003 were
(in thousands):

Year ended December 31,
2004                                                     12
2005                                                      8
                                                    -------

                                                         20
Less amount representing interest                        (2)
                                                    -------

Present value of capital lease obligation                18
Capital lease obligations - current portion             (12)
                                                    -------

Capital lease obligations - long-term portion      $      6
                                                   ========


Operating Leases

The Company leases office and manufacturing space in Alameda,  California, under
a  noncancelable  operating  lease which expires in June 2004.  The Company also
leases manufacturing space in Rockville, Maryland under two operating subleases.
Total rent  expense  under these  leases was $836,000 and $867,000 for the years
ended December 2003 and 2002, respectively. Future minimum rental payments under
all noncancelable operating leases as of December 31, 2003 were (in thousands):

Year ended December 31,
2004                                                 $   584
2005                                                     385
2006                                                     321
Thereafter                                                 -
                                                   ---------
                                                     $ 1,290
                                                   ==========

Total $ 1,290 Refer to Note 18 for  information  regarding  an  extension of the
lease for the Company's Rockville, Maryland facilities.


(9)  Mandatorily Redeemable Preferred Stock

At the time of its original incorporation,  the Company issued both common stock
and $1,000,000 of mandatorily  redeemable  Series A preferred stock. The Company
is required to redeem all shares of  mandatorily  redeemable  Series A preferred
stock  within  60 days of any  fiscal  year-end  in which  the  Company  attains
$3,000,000  in  retained  earnings,  and funds are legally  available.  Based on
losses accumulated through December 31, 2003, the Company must achieve in excess
of  $130,800,000  in future  earnings  before any  repayment  is  required.  The
mandatorily  redeemable  Series A preferred  stock is  nonvoting  and holders of
these shares are entitled to receive  cumulative  dividends at the rate of $1.20
per share per annum.  Through  June 30,  2003,  cumulative  preferred  dividends
totaling  $1,636,000  have been  charged to  stockholders'  equity  (deficit) to
accrete for the mandatorily redeemable Series A preferred stock redemption value
with  a  corresponding  increase  in the  recorded  amount  of  the  mandatorily
redeemable  Series A preferred  stock.  Since the  Company's  third quarter 2003
adoption of SFAS No. 150, as described in Note 2, cumulative preferred dividends
totaling  $60,000  have been  charged to  interest  expense  to accrete  for the
mandatorily  redeemable  Series  A  preferred  stock  redemption  value  with  a
corresponding  increase in the  recorded  amount of the  mandatorily  redeemable
Series A preferred stock.

In  anticipation  of using a portion of the  proceeds  from its  Initial  Public
Offering to redeem the Series A preferred  stock,  the  Company  eliminated  the
Series A preferred stock from its articles of incorporation upon reincorporation
of the Company in Delaware in June 1996. However,  management subsequently chose
not to redeem  the  Series A  preferred  stock and as of  December  31,  2003 it
remains outstanding. The holders of such shares maintain the same rights as held
before the reincorporation.

(10) Stockholders' Equity (Deficit)

Increase in Authorized Shares

On February 14, 2003, the Company filed an Amendment to its Amended and Restated
Certificate  of  Incorporation  with the  Secretary  of State of  Delaware  that
increased  the number of shares of  authorized  common stock from 200 million to
800  million.  The  Company's   stockholders   approved  the  Amendment  to  the
Certificate of  Incorporation  at the Special  Meeting of  Stockholders  held on
February 14, 2003. A principal purpose for authorizing the additional shares was
for  issuance  pursuant  to  arrangements  to finance the  Company's  continuing
operations.


                                      F-24


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Private Placements

As detailed in the Consolidated  Statements of Stockholders'  Equity  (Deficit),
the  Company  raised net  proceeds  $0.4  million  and $12.5  million in private
placement  transactions  with  accredited  investors who  purchased  266,667 and
28,333,333 shares during 2002 and 2003, respectively.

Under the terms of the August 2002 private  placement,  Calypte agreed to file a
registration  statement  for the shares of common  stock and use its  reasonable
best  commercial  efforts to cause the  registration  statement  to be  declared
effective  within  ninety  days of the  closing  date.  Under  the  terms of the
agreement,  the Company was  required to issue,  as  liquidated  damages,  8,333
shares of its common  stock for each ten days of delay past  November  27, 2002.
The  shares  underlying  this  agreement  were  included  in the  Company's  S-2
registration  statement  that was  filed  with the SEC on July 8, 2003 and which
became  effective  on  July  18,  2003.   Through  the  effective  date  of  the
Registration Statement, the Company charged an aggregate of $225,000 to interest
expense representing the value of 183,333 shares issuable as liquidated damages.
On April 1, 2003, when the price of the Company's  common stock was $0.849,  the
Company  issued  100,000 shares of its common stock in settlement of accumulated
liquidated  damages  through  March  27,  2003,  pursuant  to the  terms  of the
agreement.  On September 19, 2003, when the price of the Company's  common stock
was $1.43, the Company issued an additional 83,333 shares of its common stock in
final settlement of liquidated damages under this agreement.

On July 31,  2003,  when the market price of the  Company's  stock was $0.18 the
Company  announced  that it had  entered  into a financing  agreement  with Marr
Technologies B.V. ("Marr") in which the Company would issue 8,333,333 restricted
shares of its common stock priced at $0.30 for an aggregate of $2.5 million. The
Company's  stock  just  prior to the  announcement  had been  trading in a range
between  $0.11 and $0.12 per share.  The  agreement  contains a 12 month lock-up
(holding period)  provision.  In conjunction  with the investment,  Marr has the
right to nominate two  mutually-agreeable  individuals  for  appointment  to the
Calypte  Board  of  Directors  at a  mutually-agreeable  future  date.  The  two
companies  also signed a  Memorandum  of  Understanding  and have formed a joint
venture in China,  with the intent of  creating  a platform  for  manufacturing,
distribution  and  sale of  Calypte's  products  in  China.  Calypte's  existing
distribution agreement has been assigned to the joint venture under the terms of
this  agreement.  On September 2, 2003,  when the market price of the  Company's
stock was $0.82,  the Company  announced  that it had entered into an additional
$10 million  equity  financing  agreement  with Marr in which the Company  would
issue 20  million  restricted  shares of its  common  stock  priced at $0.50 per
share. This agreement also contains a 12 month lock-up provision.

Equity Line of Credit

In August 2001, the Company and Townsbury  Investments,  Ltd.  ("Townsbury"),  a
private investment fund, signed a common stock purchase agreement for the future
issuance and purchase of up to $10 million of the Company's  common stock over a
twenty-four  month period.  The initial closing of the  transaction  occurred in
October 2001. Under this arrangement, the Company, at its sole discretion, could
draw down on this facility,  sometimes termed an equity line, from time to time,
and the investment fund was obligated to purchase shares of the Company's common
stock.  The purchase  price of the common stock  purchased  pursuant to any draw
down  was  equal  to 88% of the  daily  volume  weighted  average  price  of the
Company's  common stock on the applicable  date. In conjunction with the signing
of the stock  purchase  agreement,  in October 2001, the Company issued a 7-year
fully-vested  warrant to Townsbury to purchase  approximately  140,000 shares of
common stock at an exercise  price of $8.229 per share and issued  approximately
3,800 shares of its common stock as a fee to  Townsbury.  In October  2001,  the
Company  filed a  Registration  Statement  on Form S-2 with the  Securities  and
Exchange  Commission  to register for resale  10,000,000  shares of common stock
that it might issue in conjunction  with the equity line  facility,  the warrant
and the fee shares.  During  November and December  2001, the Company issued two
draw down requests under this facility in the aggregate amount of $430,000.  The
Company  issued  72,738  shares of its common stock and received  aggregate  net
proceeds of $406,000  after  deducting  fees and expenses in settling  these two
draw downs.  During 2002,  the Company issued 783,038 shares of its common stock
and  received  aggregate  net  proceeds  of  approximately  $2.7  million  after
deducting  fees and  expenses  in settling  these  fourteen  draw downs.  At the
expiration  of the  facility  in October  2003,  the  Company  had issud all but
approximately 633 shares of the registered stock.

The  warrant  issued to  Townsbury  was valued on the date of issue at $6.60 per
share  using  the   Black-Scholes   option-pricing   model  with  the  following
assumptions:  expected  dividend yield of 0.0%; risk free interest rate of 4.3%,
the  contractual  life of 7  years,  and  volatility  of 80%.  The  warrant  was
accounted for as a deferred  offering  cost and was  recognized as a cost of the
financing in proportion  to the amount of each  draw-down in relation to the $10
million nominal commitment  amount. The unamortized  balanced was written off as
interest expense at the termination of the facility.


                                      F-25


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

In  conjunction  with  the  issuance  of the 10%  convertible  note to BNC  Bach
described  in Note 6, on May 10,  2002 when the  market  price of the  Company's
common stock was $0.90,  Calypte  repriced from $8.23 to $0.45 the 140,000 share
warrant  issued to Townsbury  pursuant to the equity  line,  as permitted by the
warrant's originally  negotiated terms.  Townsbury exercised the warrant for the
entire 140,000 shares and Calypte received $63,000 in proceeds.  In light of the
Company's  precarious  financial  condition  and its being in danger of  ceasing
operations,  the exercise  price was modified to serve as an inducement  for the
investor to exercise the warrant.  The Company  viewed the  modification  of the
exercise price as fair and reasonable under the circumstances. Townsbury was and
is viewed as an unaffiliated party of the Company. The fair value of the warrant
had  originally  been treated as a deferred  offering cost  associated  with the
equity line.  The fair value of the  repriced  warrant was less than that of the
original  warrant and therefore no  accounting  adjustment  attributable  to the
repricing  was  required.   Upon  the  exercise  of  the  warrant,  the  Company
reclassified the $807,000  unamortized  balance of the deferred offering cost to
additional paid-in capital.

Warrants, options and stock grants

During  2002,  the  Company  looked for ways to  minimize  its use of cash while
obtaining  required  services.  It issued  warrants  and  options to purchase an
aggregate  of  1,583,333  shares  of its  common  stock  under  agreements  with
consultants to perform legal,  financial,  business  advisory and other services
associated  with the  restart  of its  operations  including  introductions  and
arrangements  with  respect to  potential  domestic  and  international  product
distribution  agreements,  assistance  with  international  product  trials  and
regulatory  qualifications.  At December 31, 2002, the consultants had exercised
options and warrants to purchase  1,550,000 shares of the Company's common stock
and they exercised the balance in 2003. The Company received  approximately $1.7
million  in  proceeds  in 2002 and 2003.  The  warrant  and option  grants  were
non-forfeitable  and  fully-vested at the date of issuance and were valued using
the Black-Scholes option pricing model using the following range of assumptions:

                                                        Low          High
                                                      ---------     ----------
Exercise price per share                                  $0.45         $1.50
Market price of Calypte's stock on date of issuance       $0.90         $4.20
Assumptions:
   Expected dividend yield                                 0.0%          0.0%
   Risk free rate of return                               1.25%         5.16%
   Contractual life                                    3 months      10 years
   Volatility                                               80%           80%
Fair Market Value                                        $0.465         $7.59

Pursuant to the requirements of FASB Statement No. 123 and EITFs 96-18 and 00-18
related to  accounting  for  stock-based  compensation,  the Company  recognized
non-cash  selling,  general  and  administrative  expense  in the amount of $2.1
million attributable to these warrants at the date of grant in 2002.

In addition to the above  warrants and options,  the Company issued stock grants
for approximately  103,000 shares of its common stock to certain consultants and
other vendors under various  agreements and recorded non-cash  selling,  general
and administrative expense of $364,000 based on the intrinsic value of the stock
on the date granted during 2002.

During 2003, the Company  entered into new contracts and extended  certain other
contracts with existing consultants to perform various legal, business advisory,
marketing and distribution  functions similar to those entered into during 2002.
The Company issued warrants to purchase an aggregate of 4,463,834  shares of its
common stock as compensation  for these  services.  During 2003, the consultants
exercised  warrants to purchase  4,263,834  shares of the Company's common stock
and  the  Company   received   proceeds  of   $2,707,000.   The  warrants   were
non-forfeitable  and  fully-vested at the date of issuance and were valued using
the Black-Scholes option pricing model using the following range of assumptions:

                                                      Low          High
                                                     --------     ---------
Exercise price per share                               $0.080         $1.50
Market price of Calypte's stock on date of issuance     $0.18         $2.01
Assumptions:
   Expected dividend yield                               0.0%          0.0%
   Risk free rate of return                             0.92%         1.86%
   Contractual life                                  3 months     24 months
   Volatility                                         131.35%       411.50%
Fair Market Value                                       $0.11         $1.46



                                      F-26


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Pursuant to the requirements of FASB Statement No. 123 and EITFs 96-18 and 00-18
related to  accounting  for  stock-based  compensation,  the Company  recognized
non-cash  selling,  general  and  administrative  expense  in the amount of $2.8
million attributable to these warrants at the date of grant in 2003.

In addition to the  warrants  and options  described  above,  during  2003,  the
Company  also issued  stock  grants for  approximately  3,637,000  shares of its
common stock to certain  consultants and other vendors under various  agreements
and recorded non-cash selling,  general and administrative expense of $2,712,000
based on the intrinsic value of the stock on the date of grant.

Change of Control Provisions

Certain provisions of the Company's  Certificate of Incorporation and Bylaws may
have the  effect of  preventing,  discouraging  or  delaying  any  change in the
control of the Company and may maintain the incumbency of the Board of Directors
and  management.  The  authorization  of  undesignated  preferred stock makes it
possible  for the Board of  Directors  to issue  preferred  stock with voting or
other  rights or  preferences  that could  impede the  success of any attempt to
change  control of the Company.  Additionally,  in December  1998, the Company's
Board of  Directors  declared a dividend  distribution  of one  preferred  share
purchase  right (a Right)  for each  outstanding  share of  common  stock of the
Company.  The dividend was payable to the  stockholders  of record on January 5,
1999.  The Rights  have  certain  anti-takeover  effects.  The Rights will cause
substantial  dilution to a person or group that  attempts to acquire the Company
without  conditioning  the offer on the Rights being  redeemed or a  substantial
number of Rights being acquired.  However,  the Rights should not interfere with
any tender  offer or merger  approved by the  Company  because the Rights do not
become  exercisable  in the  event of a  permitted  offer  or other  acquisition
exempted by the Board.

(11) Incentive Stock and Stock Options Plans

Stock option  grants to employees are  generally  issued with an exercise  price
equal to the market price at the grant date. To the extent that the market price
of the  common  stock  exceeds  the  exercise  price  of the  options,  deferred
compensation is recognized for the intrinsic value in accordance with APB 25 and
FIN 44. This deferred  compensation would be amortized on a straight-line  basis
over the vesting period of the option.

Option  grants  to  non-employees  are  valued  at the date of grant  using  the
Black-Scholes  option-pricing  model in accordance  with FAS 123.  Option grants
that do not include sufficient  disincentive for  non-performance  are accounted
for in accordance with EITFs 96-18 and 00-18.  In such  instances,  the deferred
compensation  is amortized  over the term of the  agreement  on a  straight-line
basis. Until the awards are fully vested or a measurement date is achieved,  the
Company records an adjustment to deferred compensation and consultant expense to
reflect the impact of the fair  value,  as  remeasured  at  quarter-end,  of the
options based on changes to the Company's stock price.

Stock  bonuses and awards  reflect  shares of Calypte  common  stock  granted to
employees  and  consultants.  Compensation  expense is recognized at the time of
grant,  and is determined  based on the number of shares awarded and the closing
market price at the date of the award, in accordance with APB 25.

2000 Equity Incentive Plan

In June 2000,  the Company's  Board of Directors and  stockholders  approved the
adoption of the Company's 2000 Equity Incentive Plan (the "2000 Incentive Plan")
to replace the Company's 1991 Incentive Stock Plan, which expired in April 2001.
At the Annual Meeting of  Stockholders  in May 2003, the Company's  stockholders
approved  an  increase  to  10,000,000  shares  in the  number  of shares of the
Company's common stock authorized for issuance under this plan. The Compensation
Committee of the Company's Board of Directors administers the Plan. The Board of
Directors  may  amend or modify  the 2000  Incentive  Plan at any time.  It will
expire in June 2010, unless terminated earlier by the Board of Directors.

Under  the  terms  of the  2000  Incentive  Plan,  nonstatutory  stock  options,
restricted  stock and stock  bonuses  may be  granted  to  employees,  including
directors who are employees, non-employee directors, and consultants.  Incentive
stock options may be granted only to employees.

Nonstatutory  stock  options may be granted under the 2000  Incentive  Plan at a
price less than the fair market value of the common stock on the date the option
is granted.  Prior to the amendment of the 2000  Incentive  Plan approved by the
Company's   stockholders  at  the  May  2003  Annual  Meeting  of  Stockholders,
nonstatutory  stock options could not be granted at a price less than 85% of the
common stock on the grant date.  Incentive  stock  options may be not be granted
under the 2000 Incentive Plan at a price less than 100% of the fair market value
of the common stock on the date the option is granted.


                                      F-27


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

Incentive  stock  options  granted to employees  who, on the date of grant,  own
stock  representing more than 10% of the voting power of all classes of stock of
the  Company  are  granted at an  exercise  price not less than 110% of the fair
market value of the common stock.  Options  granted to employees  under the 2000
Incentive  Plan  generally  vest monthly  over periods of up to three years,  as
specified in the option agreements. The term of nonstatutory and incentive stock
options  granted is 10 years or less from the date of the grant,  as provided in
the option agreements.

Restricted  stock awards may be granted to purchase stock either in addition to,
or in tandem with,  other awards under the 2000 Incentive Plan, under conditions
determined by the  Compensation  Committee.  The purchase  price for such awards
must be no less than 85% of the fair market value of the Company's  Common Stock
on the date of the grant. The Compensation  Committee may also grant stock bonus
awards to employees or consultants  for services  rendered to the Company.  Such
awards may also be  granted  either in  addition  to, or in tandem  with,  other
awards  under  the 2000  Incentive  Plan,  under  conditions  determined  by the
Compensation Committee.

Deferred  compensation is recorded  related to options granted to  non-employees
and  options  granted to  employees  when the  exercise  price is below the fair
market  value of the  underlying  common  stock,  if any.  For the  years  ended
December  31,  2003 and 2002,  the Company  recorded  deferred  compensation  of
$10,000,  and $75,000,  respectively,  for certain of the Company's common stock
options granted under the Stock Plan. This amount is amortized over the relevant
period of  service.  The  amortized  compensation  expense  for the years  ended
December 31, 2003 and  December  31, 2002 was $3,000 and $83,000,  respectively.
The Company recorded compensation expense of $94,000 and $721,000, respectively,
attributable  to stock bonus  awards of 48,667  shares of common  stock  granted
during 2003 and 300,974 shares of common stock granted during 2002. Compensation
expense  attributable  to stock bonuses is determined by multiplying the closing
market price of the Company's common stock on the date of grant by the number of
shares granted. The weighted average price of shares issued as stock bonuses was
$1.92 in 2003 and $2.40 in 2002.

In December 2002, at the Company's request, employees agreed to the cancellation
of an aggregate of approximately 440,000 options (including approximately 88,000
options granted to officers) to purchase the Company's  common stock  previously
issued  from this Plan and from the 1991  Incentive  Stock Plan.  The  cancelled
options had exercise  prices above the  then-current  market price.  The Company
agreed to reissue these  options on a fully vested basis with an exercise  price
of the  lesser of (i)  $1.92  per  share or (ii)  market at the date of the 2003
Annual Stockholders' Meeting,  subject to stockholder approval at the meeting of
an amendment  to the 2000  Incentive  Plan to increase the number of  authorized
shares  for the 2000  Incentive  Plan  and to  increase  the  number  of  shares
permitted to be granted annually to a plan participant from 900,000 to 2,500,000
shares. The Company's  stockholders  approved the amendment and the options were
issued on May 29, 2003 at the market price of $0.32.

The following  table  summarizes  option grant activity under the 2000 Incentive
Plan:
                                                           Weighted
                                                           Average
                                        Options            Exercise Price
                                        -----------        ---------------
Outstanding as of December 31, 2001         292,418        $    13.34
Granted                                     317,860              3.03
Exercised                                   (99,140)             2.60
Cancelled                                  (453,727)             9.70
                                           --------

Outstanding as of December 31, 2002          57,411        $     3.74
Granted                                   8,528,626              0.33
Exercised                                (1,426,510)             0.38
Cancelled                                  (562,778)             0.36
                                           --------

Outstanding as of December 31, 2003       6,596,749        $     0.35
                                          =========

Exercisable as of December 31, 2002          38,710        $     3.68

Exercisable as of December 31, 2003       2,431,636        $     0.34



                                      F-28


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


As of December 31, 2003,  1,579,884  shares of common stock were  available  for
grant under the 2000  Incentive  Plan.  The following  table  summarizes the per
share weighted-average fair value of stock options granted during 2003 and 2002,
on the date of grant  using  the  Black-Scholes  option-pricing  model  with the
indicated weighted-average assumptions:

                                              2003             2002
                                            ----------        ----------
Per share weighted average fair value
  of options granted                            $0.336           $1.389
Expected dividend yield                           0.00%            0.00%
Risk-free interest rate                           3.44%            3.55%
Volatility                                       226.1%            80.0%
Expected life                                 8.0 years        4.9 years


1991 Incentive Stock Plan

In April 1991,  the  Company's  Board of Directors  approved the adoption of the
Company's  Incentive  Stock Plan (the Stock Plan).  A total of 141,366 shares of
common stock were reserved for issuance under the Stock Plan. Since the adoption
of the 2000 Equity  Incentive Plan in June 2000, no additional  shares have been
granted  from the Stock  Plan.  All of the  shares  reserved  but not  issued or
subject to options  granted under the Stock Plan,  including  shares  subject to
cancelled  options,  are available for grant under the 2000  Incentive  Plan. At
December 31,  2003,  there were no shares of common  stock  available  for grant
under the Stock Plan.

The following table summarizes activity under the Stock Plan:


                                                         Weighted Average
                                        Options          Exercise Price
                                        ----------       ----------------
Outstanding as of December 31, 2001          40,386      $        50.45
Cancelled                                   (33,630)              38.23
                                            -------

Outstanding as of December 31, 2002           6,756      $       111.31
Cancelled                                      (500)             210.00
                                        ----------

Outstanding as of December 31, 2003           6,256       $      103.42
                                        ===========

Exercisable as of December 31, 2002          6,756        $      111.31

Exercisable as of December 31, 2003          6,256        $      103.42


1995 Director Option Plan

In December 1995, the Company's  Board of Directors  approved the Company's 1995
Director  Option  Plan (the  Director  Option  Plan).  At the Annual  Meeting of
Stockholders  in May 2003,  the Company's  stockholders  approved an increase to
2,000,000  shares  in the  number  of  shares  of  the  Company's  common  stock
authorized  for issuance  under this plan.  Under the Director  Option Plan, the
Company's  Board of Directors  determines  the number of shares of the Company's
stock that will be granted each year to newly-elected and re-elected  directors.
Options may be granted under this plan to non-employee directors or, pursuant to
an agreement  between the Company and another  person,  entity or affiliate with
whom a  non-employee  director is  associated,  that other  person,  entity,  or
affiliate.  Each option granted under the Director Option Plan is exercisable at
100% of the fair  market  value of the  Company's  common  stock on the date the
option was  granted.  Each grant  under the plan vests  monthly  over the twelve
month period  commencing  with the director's  date of election or  re-election,
provided that the option will become vested and fully exercisable on the date of
the next annual  meeting of  stockholders  if such meeting  occurs less than one
year after the date of the grant.  The plan will expire in December  2005 unless
terminated earlier in accordance with certain provisions of the Plan.

The Company has not recorded any deferred  compensation for the Company's common
stock options granted under the Director Option Plan.



                                      F-29


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

The following table summarizes activity under the Director Option Plan:

                                                              Weighted
                                                              Average
                                        Options            Exercise Price
                                        -----------      -----------------
Outstanding as of December 31, 2001        21,930         $          37.65
Granted                                     6,667                     4.80
Cancelled                                  (7,916)                    4.99
                                        ---------

Outstanding as of December 31, 2002        20,681         $          39.56
Granted                                   631,667                     0.33
Exercised                                  (8,333)                    0.32
Cancelled                                (206,335)                    0.87
                                         --------

Outstanding as of December 31, 2003       437,680         $           1.93
                                          =======

Exercisable as of December 31, 2002        20,681         $          39.56

Exercisable as of December 31, 2003       271,004         $           2.93


As of December 31, 2003,  1,553,962  shares of common stock were  available  for
grant under the Director  Option Plan.  The following  table  summarizes the per
share weighted-average fair value of stock options granted during 2003 and 2002,
on the date of grant  using  the  Black-Scholes  option-pricing  model  with the
indicated weighted-average assumptions:

                                               2003              2002
                                            ----------          ----------
Per share weighted-average fair value
  of options granted                            $0.332             $1.760
Expected dividend yield                          0.00%              0.00%
Risk-free interest rate                          3.57%              5.16%
Volatility                                      217.1%              80.0%
Expected life                               10.0 years          1.3 years


2003 Non-Qualified Stock Option Plan

In June 2003,  the  Company's  Board of  Directors  authorized  and the  Company
registered  a total of  10,000,000  shares of its common  stock under a Form S-8
Registration Statement for issuance under the Company's 2003 Non-Qualified Stock
Option Plan (the "2003  Plan").  Under the 2003 Plan,  at the  discretion of the
Board of Directors,  shares may be awarded in consideration of services rendered
to the  Company.  Options  or  awards  may be  granted  under  this plan only to
non-officer employees and consultants.  The plan will expire in June 2013 unless
terminated earlier in accordance with certain provisions of the plan.

The following table summarizes 2003 option activity for the 2003 Plan:

                                                               Weighted
                                                               Average
                                         Options            Exercise Price
                                        -----------         ----------------
Granted                                  7,227,500          $          0.16
Exercised                               (7,227,500)                    0.16
                                        ----------

Outstanding as of December 31, 2003              -
                                        ===========
                                                  -         $              -


Exercisable as of December 31, 2003              -          $              -




                                      F-30



                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


The following  table  summarizes  the per share  weighted-average  fair value of
stock options granted during 2003, on the date of grant using the  Black-Scholes
option-pricing model with the indicated weighted-average assumptions:

                                                                       2003
                                                                       ----
Per share weighted-average fair value of options granted              $0.114
Expected dividend yield                                                0.00%
Risk-free interest rate                                               0.918%
Volatility                                                            156.1%
Expected life                                                     0.22 years

The Company  also  granted  stock  awards from the 2003 Plan for an aggregate of
2,689,552  shares of its common  stock  during  2003 and  recorded  compensation
expense  of  $788,000.  Compensation  expense  attributable  to stock  awards is
determined by multiplying the closing market price of the Company's common stock
on the date of grant by the number of shares granted. The weighted average price
of shares  issued as stock  awards was $0.36 in 2003.  At December  31,  2003, a
total of 82,978  shares of common stock were  available  for grant as options or
other awards under the 2003 Plan.


The following table summarizes  information  about stock options  outstanding at
December 31, 2003 under the 2000 Equity Incentive Plan, the 1991 Incentive Stock
Plan, and the 1995 Director Option Plan





                                          Options Outstanding                        Options Exercisable
                              ---------------------------------------------     ------------------------------
                                 Number      Weighted Average  Weighted-        Number         Weighted-
                              Outstanding    Remaining Years   Average          Exercisable    Average
 Range of Exercise Prices     at 12/31/03    to Expiration     Exercise price   at 12/31/03    Exercise Price
- -------------------------     ------------   -------------     ------------     ------------   ----------------
                                                                                
$0.010 -   $0.123                   359,564           9.42     $      0.014       345,564       $         0.010
$0.126 -   $0.180                   819,000           3.78     $      0.127        10,000       $         1.126
$0.320 -   $0.320                 5,169,592           8.25     $      0.320     2,281,151       $         0.320
$0.610 -   $1.405                   646,900           9.29     $      0.762        30,000       $         0.900
$3.000 - $210.00                     45,629           7.35     $     33.318        42,181       $        35.571
                             --------------  --------------    ------------     ------------   -----------------
$0.010 - $210.00                  7,040,685           7.88     $      0.536     2,708,896       $         0.835
                             ==============                                     ============




1995 Employee Stock Purchase Plan

In December  1995,  the  Company's  Board of Directors  approved  the  Company's
Employee  Stock  Purchase  Plan (the  "Purchase  Plan").  The  Purchase  Plan is
intended to qualify under  Section 423 of the Internal  Revenue Code (the Code).
At the Annual Meeting of  Stockholders  in May 2003, the Company's  stockholders
approved  an  increase  to  1,000,000  shares  in the  number  of  shares of the
Company's  common  stock  authorized  for  issuance  under this plan.  Under the
Purchase Plan, an eligible employee may purchase shares of common stock from the
Company through payroll deductions of up to 10% of his or her compensation, at a
price per share  equal to 85% of the lower of (i) the fair  market  value of the
Company's common stock on the first day of an offering period under the Purchase
Plan or (ii) the fair  market  value of the common  stock on the last day of the
six month purchase period during the offering period. Each offering period lasts
for twenty four months;  prior to 2002, stock purchases occurred on April 30 and
October 31 of each year.  The  purchase  period  beginning  November 1, 2001 and
ending  April 30, 2002 was  terminated  due to the  wind-down  of the  Company's
operations and all payroll deductions  withheld from employees were returned.  A
new  purchase  period  began on July 1, 2002 and was  completed  on December 31,
2002,  when  employees  purchased  3,437 shares of the  Company's  common stock.
During the year ended  December 31, 2003,  employees  purchased  18,192,  shares
under the Purchase Plan.  Cumulative  purchases  under the Purchase Plan through
December 31, 2003 totaled 28,380  shares,  leaving  971,620 shares  reserved for
future purchases.


                                      F-31


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


(12) Section 401(k) Plan

Effective  January  1,  1995,  the  Company  adopted a  Retirement  Savings  and
Investment  Plan (the 401(k) Plan)  covering the Company's  full-time  employees
located in the United  States.  The 401(k)  Plan is  intended  to qualify  under
Section 401(k) of the Internal Revenue Code. Under the terms of the 401(k) Plan,
employees  may  elect  to  reduce  their  current  compensation  by  up  to  the
statutorily  prescribed  annual  limit and to have the amount of such  reduction
contributed to the 401(k) Plan. The Company matched participant's  contributions
up to the first $2,000 during 2003, for approximately  $98,000;  no such Company
contribution was made in 2002.

(13)    Income Taxes

The  provision  for income taxes for all periods  presented in the  consolidated
statements of operations  represents minimum California  franchise taxes. Income
tax expense  differed  from the amounts  computed by applying  the U.S.  federal
income tax rate of 34% to pretax losses as a result of the following:




                                                                          2003            2002
                                                                  ------------       ------------
                                                                                  
Computed expected tax expense                                           (8,960)         $  (4,520)
Losses and credits for which no benefits have been recognized            8,950              4,514
Meals and entertainment expenses, and officers life
  insurance not deductible for income tax purposes                          11                  7
State tax expense, net of federal income tax benefit                         1                  1
                                                                   -----------        -----------

                                                                  $          2       $          2
                                                                  ============       ============



The tax effect of temporary  differences that give rise to significant  portions
of the deferred tax asset is presented below:

                                                                                   December 31,
                                                                          2003              2002
                                                                --------------     --------------

Deferred tax assets:
    Employee benefit reserves, including accrued vacation        $          46      $          50
    and bonuses
    Start-up and other capitalization                                      556                673
    Fixed assets, due to differences in depreciation                       300                173
    Deferred rent and revenue                                              199                210
    Net operating loss carryovers                                       44,070             33,544
    Research and development credits                                     1,576              1,596
    Other                                                                  622                704
                                                                    ----------          ---------

Total gross deferred tax assets                                         47,369             36,950
Valuation allowance                                                    (47,369)           (36,950)
                                                                       -------            -------

Net deferred tax asset                                                       -                  -
                                                                  ============       ============



The net change in the valuation  allowance for the years ended December 2003 and
2002 was an increase of $10,419,000 and $4,623,000,  respectively. Because there
is  uncertainty  regarding  the  Company's  ability to realize its  deferred tax
assets,  a  100%  valuation  allowance  has  been  established.  When  realized,
approximately  $171,000 of deferred tax assets will be  creditable to additional
paid-in capital.

As of  December  31,  2003,  the Company  had  federal  tax net  operating  loss
carryforwards of approximately $122,977,000, which will expire in the years 2004
through  2023.  The Company  also has federal  research and  development  credit
carryforwards  as of December 31, 2003 of approximately  $1,156,000,  which will
expire in the years 2005 through 2022.

State tax net operating loss carryforwards  were  approximately  $38,700,000 and
state research and development credit carryforwards were $619,000 as of December
31, 2003.  The state net operating loss  carryforwards  will expire in the years
2004  through  2013  and  the  state  research  and  development   credits  will
carryforward indefinitely.


                                      F-32


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

The  Company's  ability to  utilize  its net  operating  loss and  research  and
development  tax  credit  carryforwards  may be  limited  in the future if it is
determined  that the Company  experienced  an  ownership  change,  as defined in
Section 382 of the Internal Revenue Code.

(14) Royalty, License, and Research Agreements

Royalty and License Agreements

The Company has entered into arrangements with various  organizations to receive
the right to utilize  certain  patents and  proprietary  rights under  licensing
agreements in exchange for the Company making certain royalty  payments based on
sales of certain products and services.  The royalty  obligations are based on a
percentage of net sales of licensed  products and include minimum annual royalty
payments under some  agreements.  The Company pays royalties to five entities on
its  urine-based  screening test and to one entity on its serum- and urine-based
Western Blot  supplemental  tests.  The patents  underlying the royalties expire
between  2004 and 2009.  There are minimum  payments  required by certain of the
agreements that apply  regardless of the amount of actual sales. The Company did
not make all of the required minimum and sales-based payments for 2003 or 2002.

At December 31, 2003,  the Company is  approximately  $409,000 in arrears on the
payment of royalties under certain of its licensing agreements. Under certain of
the Company's  licensing  agreements,  the patent  holder or other  organization
granting  rights  to the  Company  has the  right  to  revoke  the  license  for
non-payment   of  royalties.   Should  the  patent  holder  or  other   granting
organization  take that step,  the Company could find it necessary to modify its
manufacturing  practices or change its business  plan.  During 2002, the Company
settled  approximately  $1 million of its past due  royalties by issuing  25,000
shares  of  its  common  stock.   This  transaction  was  a  part  of  the  debt
restructuring discussed in Note 7. In September 2003, the Company issued 500,000
shares of its  common  stock  valued at the date of  issuance  at  approximately
$610,000 to maintain its exclusivity  under certain  license  agreements for the
years 2003 and 2004.  The  portion  applicable  to  exclusivity  during  2004 is
recorded as a prepaid expense at December 31, 2003.

(15) Employment and Consulting Agreements

In October 2001,  the Company  renewed an agreement  with a former member of the
Board of Directors  to serve as Chairman of the Board of Directors  for a twelve
month term.  The director was granted  options to purchase  10,000 shares of the
Company's stock at an exercise price of $6.60.  The options were to vest ratably
over the  twelve-month  term of the  agreement.  The Board  member  resigned  as
Chairman and as a member of the Board in May 2002. All options not vested at the
time of his resignation were cancelled.

In May 2002, in conjunction with the financing  proposal enabling the restart of
operations,  the independent members of the Company's Board of Directors entered
into an employment  agreement  with the Company's  new Executive  Chairman.  The
employment  agreement  specifies  an annual  salary of  $400,000  and allows for
annual  increases  based  on  the  Company's  performance  and  approval  of the
Compensation  Committee  of  the  Board  of  Directors.   The  Company  deferred
approximately  30% of the Executive  Chairman's cash  compensation  during 2002,
which the  Company  accrued.  The  Company  continued  to defer and accrue  this
compensation  until it was paid during the third  quarter of 2003.  In the event
the Company terminates the Executive Chairman's employment other than for cause,
he is entitled to receive his base salary for at least twelve months. On May 10,
2002,  when the market price of the Company's  common stock was $0.90 per share,
the  Executive  Chairman  was granted  fully-vested  options to purchase  65,556
shares of the Company's  common stock at $0.45 per share and options to purchase
200,000 shares of the Company's common stock at $0.90 per share, with the option
to purchase  100,000  shares vested  immediately  and the option to purchase the
remainder  vested on the one-year  anniversary of the option grant.  The options
have a five-year  term. In the fourth quarter of 2002, the Company  renegotiated
the terms of the option grant contained in the Executive  Chairman's  Employment
Agreement,  canceling  all but  30,000 of the  options  granted  at  $0.90.  The
Executive Chairman was granted 235,556 fully-vested options at an exercise price
of $0.32 per share,  the market price of the Company's stock on the May 29, 2003
grant  date,  following   stockholder  approval  at  the  May  20,  2003  Annual
Stockholders' Meeting of amendments to the Company's 2000 Equity Incentive Plan.
Additionally,  on  May  29,  2003,  the  Executive  Chairman  was  also  granted
fully-exercisable  options to purchase  256,785 shares of the Company's stock at
$0.01 per share, in recognition of an additional  salary  deferral  arrangement,
and options to purchase  2,000,000  shares of the  Company's  stock at $0.32 per
share.  The latter  options were  exercisable  50% upon grant and 50% on the one
year anniversary of the grant.


                                      F-33


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


In October  2002,  the Company  entered into a new  five-year  agreement  with a
former officer and director that included an annual salary of $300,000,  subject
to annual  review.  The previous  agreement,  which  commenced in October  1999,
provided for an initial annual salary of $220,000,  subject to annual increases.
In  conjunction  with the new  agreement,  the Company  also granted the officer
options to purchase  146,667  shares of common  stock,  at an exercise  price of
$2.40,  subject to stockholder approval of amendments at the 2003 Annual Meeting
of Stockholders to the Company's 2000 Equity  Incentive Plan. These options were
to be fully vested on the grant date. In February  2003,  the exercise  price of
this option was reduced to the lesser of $1.50 per share or the market  price on
the grant date. In the fourth  quarter of 2002, the officer agreed to cancel all
outstanding  options  previously granted under the 1991 Incentive Stock Plan and
the 2000 Equity Incentive Plan, an aggregate of 62,573 options.  The officer was
granted 62,573 fully-vested options at an exercise price of $0.32 per share, the
market price of the  Company's  stock on the May 29, 2003 grant date,  following
stockholder  approval  at the May  20,  2003  Annual  Stockholders'  Meeting  of
amendments to the Company's  2000 Equity  Incentive  Plan.  The options  granted
conditionally  under the Employment  Agreement were also granted as fully vested
at $0.32 per share on May 29, 2003.  Additionally,  on May 29, 2003, the officer
was also  granted  fully-exercisable  options to purchase  85,236  shares of the
Company's  stock  at $0.01  per  share,  in  recognition  of a  salary  deferral
arrangement,  and options to purchase 1,250,000 shares of the Company's stock at
$0.32 per share.  The latter options were  exercisable 50% upon grant and 50% on
the  one  year  anniversary  of the  grant.  Under  the  terms  of a  Separation
Agreement,  Mutual Release and Waiver of Claims,  the officer resigned effective
June 2,  2003  as the  Company's  President  and  Chief  Executive  Officer  and
effective June 27, 2003 as a member of the Company's  Board of Directors.  Under
the terms of the Separation  Agreement,  the Company agreed to pay approximately
$313,000 over a period of up to one year and to permit previously issued options
to vest in accordance with the terms of their grants.

On  January  1,  2003,  the  Company  entered  into a  twelve  month  employment
agreement,  with automatic renewal options,  with an officer of the Company that
included a base salary of $200,000,  and the grant of options to purchase 83,333
shares of the  Company's  common stock at an exercise  price of $1.50 per share,
subject to  stockholder  approval of  amendments  at the 2003 Annual  Meeting of
Stockholders to the Company's 2000 Equity  Incentive Plan. These options were to
be fully  vested on the grant  date.  The officer had  previously  been  granted
options to purchase an aggregate of 25,000 shares of the Company's  common stock
in 2001 and 2002,  pursuant  to an earlier  consulting  contract.  In the fourth
quarter of 2002, the officer agreed to cancel all outstanding options previously
granted to him.  The  officer  was  granted  25,000  fully-vested  options at an
exercise  price of $0.32 per share,  the market price of the Company's  stock on
the May 29, 2003 grant date, following  stockholder approval at the May 20, 2003
Annual  Stockholders'  Meeting  of  amendments  to  the  Company's  2000  Equity
Incentive Plan. The options granted conditionally under the Employment Agreement
were  also  granted  as  fully  vested  at  $0.32  per  share  on May 29,  2003.
Additionally,  on May 29, 2003,  the officer was also granted  fully-exercisable
options to purchase  24,038 shares of the Company's stock at $0.01 per share, in
recognition of a salary deferral  arrangement,  and options to purchase  625,000
shares of the  Company's  stock at $0.32 per  share.  The  latter  options  were
exercisable 50% upon grant and 50% on the one year anniversary of the grant.

In June 2003, the Company entered into a five year  employment  agreement with a
director  and  officer of the  Company  that  included a base  annual  salary of
$350,000. Refer to Note 18 regarding management changes.

In April 2003, the Company  entered into a three-year  consulting  agreement for
advisory and other services  related to the marketing,  distribution and sale of
its  products.  The  agreement  obligates  the Company to pay the  consultant an
aggregate of $3,000,000 in cash as follows: $750,000 in 2003, $1,000,000 in both
2004 and 2005,  and $250,000 in 2006. At December 31, 2003, the Company had paid
an aggregate of $675,000  pursuant to the contract and had accrued the remaining
liability for the balance due in 2003. Additionally,  the agreement requires the
Company to issue 66,667  shares of its common stock  annually as directed by the
consultant in 2003, 2004 and 2005.

(16) Related Party Transactions

As described in Note 6, in September  2001,  the Company  issued a $400,000 8.5%
Promissory  Note to the parent  company  of its  then-largest  stockholder.  The
Company  renegotiated  the note during 2001, 2002 and subsequently in 2003. This
note was repaid in 2003.

In connection with the aggregate $12.5 million  investments by Marr Technologies
BV during 2003,  the Company  signed a Memorandum Of  Understanding  to create a
joint  venture in China to market the  Company's  current  and future  products.
Additionally,  the  Nominating  Committee  of the  Company's  Board of Directors
agreed to grant Marr the right to appoint two mutually-agreeable representatives
to the Company's Board of Directors at a mutually-agreeable future date.

In November 2003, the joint venture, Beijing Calypte Biomedical Technology Ltd.,
was formed, with the Company owning 51% of its stock.


                                      F-34


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


(17) Contingencies

On January 27, 2003, an action was filed in San Francisco  County Superior Court
against the Company by Heller  Ehrman White &  McAuliffe,  LLP  ("Heller"),  the
Company's former attorneys.  On April 30, 2003, the Company and Heller reached a
settlement  agreement  whereby the Company  agreed to pay a total of $463,000 to
settle this  claim,  after  which the suit will be  dismissed.  As a part of the
settlement,  the Company waived all of its defenses to Heller's claims,  as well
as its  counterclaims,  should it default on this payment plan. The Company made
the final required payment to Heller in February 2004 and Heller filed a request
for dismissal of the suit with prejudice.

On January 24, 2003,  the Company was informed  that one if its former  vendors,
Validation Systems, Inc. ("Validation"),  had commenced an action in Santa Clara
County Superior Court on an open book account in the amount of $79,614, incurred
between  April 1999 and July 2002 and which the Company  accrued,  concurrently,
plus $20,156 in interest, at the rate of 10% per annum until payment, wherein it
has claimed that it rendered  services  related to the  validation of biomedical
equipment and processes at the Company's  facilities.  The Company has contested
the claim as the alleged  services claimed by Validation were not performed in a
timely  fashion and were unable to be used by the Company.  On September 9, 2003
the Court dismissed  Validation's lawsuit against the Company due to the failure
of Validation's counsel to appear at a mediation status review and to respond to
an order to show cause  regarding the failure to appear.  Validation has filed a
motion to vacate this dismissal on grounds of  inadvertence,  mistake,  surprise
and excusable  neglect.  The Court vacated the dismissal and reinstated the case
at a hearing  on  December  2, 2003 in return for  Validation's  payment of fees
incurred  by the  Company in  connection  with  Validation's  failure to appear.
Additonally,  the Court ordered the parties to mediation. The parties are in the
process  of  scheduling  the  mediation.   The  Company  believes  that  it  has
meritorious defenses to the action.


On May 22, 2003,  the Company was informed  that a former  vendor,  Professional
Maintenance Management LLC ("PMM"), had instituted an action against the Company
in the  Montgomery  County Circuit Court of Maryland for the sum of $64,925 plus
post-judgment  interest.  The Company  agreed to resolve the matter by making an
initial payment in the amount of $10,000 and subsequent  monthly payments in the
amount of $7,500 toward the outstanding amount claimed by PMM. All payments have
been made and  plaintiff's  counsel has filed a dismissal of the action with the
Court.

In  September  of 2003,  the  Company  was served a lawsuit  filed in the United
States  District  Court  for  the  Northern  District  of  California  by  three
individuals,  Michael Serro,  Michael Caland and Assad Ali Assad, seeking shares
of the  Company  to which  they  claim  they are  entitled  based on  consulting
services they claim to have provided pursuant to consulting  agreements they had
with the Company.  The Company  disputed the liability and contended  that these
three  individuals  did not provide the consulting  services to the Company upon
which their claims are based.  A  Stipulation  of  Dismissal  was filed with the
Court in February 2004 and the matter is now closed.

The Company was contacted by the San Francisco District Office of the Securities
and Exchange  Commission  ("SEC") on October 28, 2003 and advised of an informal
inquiry  being  conducted  by the  enforcement  staff of the SEC  regarding  the
Company. The staff has requested,  among other things, documents and information
related to certain press releases issued by the Company. The SEC has advised the
Company that the inquiry  should not be construed as an indication by the SEC or
its staff that any  violation of law has occurred.  The Company has  voluntarily
provided the  information  sought by the SEC and is cooperating  with the SEC in
connection  with  its  informal  inquiry.  Independently,  the  Company's  Audit
Committee has investigated the matter and has retained outside counsel to assist
in its  investigation  by reviewing the press  releases and related  information
that were the subject matter of the SEC's  informal  inquiry  letter.  The Audit
Committee  has  completed  its  investigation  and  reported  the results of its
investigation and associated recommendations to the Board of Directors.  Counsel
for the Audit  Committee  advised the Audit Committee and the Board of Directors
that the  results of their  investigation,  interviews  and review of  documents
provided in response to the SEC's informal  inquiry letter indicated no evidence
of  management  malfeasance  with respect to its inquiry.  The Audit  Committee,
based upon its counsel's  recommendations,  proposed that the Company  implement
certain  practices and  procedures,  some of which  represent a continuation  or
formalization of present  practices.  The  recommendations  and proposals of the
Audit  Committee  that were approved by the Board of Directors  include  certain
improvements  in the  Company's  press  release  issuance  process and  investor
relations and regulatory recordkeeping  procedures.  Additionally,  the Board of
Directors  has directed  management  to implement  the American  Stock  Exchange
corporate governance standards (SR-AMEX-2003-65) approved by the SEC on December
1, 2003.  The Company is in the process of  implementing  the  directives of its
Board of  Directors  regarding  Corporate  Governance  and has  submitted to the
Board, and the Board has approved,  certain  policies and guidelines  related to
press releases and investor  relations that reflect the  recommendations  of the
Audit  Committee.  Refer to Note 18 for  additional  information  regarding  the
informal inquiry by the SEC.


                                      F-35


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

(18)    Subsequent Events

Extension of Mercator Debentures

On January 14, 2004,  the Company  extended the maturity  date of the  following
debentures  until July 14, 2004:

o    10%  Convertible  Debenture dated January 14, 2003 issued to Mercator Focus
     Fund, LP

o    10%  Convertible  Debenture  dated  January  30,  2003  issued to  Mercator
     Momentum Fund, LP

o    10% Convertible Debentures dated March 13, 2003 issued to Mercator Momentum
     Fund III, LP and Mercator Focus Fund, LP

o    12% Convertible  Debenture dated April 29, 2003 issued to Mercator Momentum
     Fund, LP

In return for the extension of the maturity dates, the Company has agreed to pay
an additional extension fee equal to 2% of the outstanding principal balance per
month  until the  earlier  of the  extended  maturity  date or  conversion.  The
extension fee is payable 1% in cash and 1% in stock.  Additionally,  the Company
agreed  to  file a  registration  statement  including  the  shares  potentially
applicable  to the  conversion  of the  outstanding  debenture  balances and the
extension fees by no later than April 29, 2004.

Conversion of Mercator  Debentures  and Extension of Time to File a Registration
Statement

On April 22,  2004,  when the market  price of the  Company's  common  stock was
$0.625 per share,  Mercator Focus Fund converted the remaining  $577,754 balance
of its January 2003 10% convertible  debenture plus related accrued interest and
extension fees into 2,109,366 shares of restricted  common stock.  Also on April
22, 2004,  Mercator Focus Fund converted the remaining  $222,318  balance of its
March 2003 10% convertible debenture plus related accrued interest and extension
fees into 991,465 shares of restricted common stock.

On April 23,  2004,  when the market  price of the  Company's  common  stock was
$0.625 per share,  Mercator Focus Fund and Mercator Momentum Fund each agreed to
extend from April 29, 2004 until May 14, 2004 the period in which the Company is
required to file a registration  statement  including shares of its common stock
previously issued to them or, in the case of Mercator Momentum Fund, issuable to
it upon  conversion of outstanding  debentures.  On May 7, 2004, when the market
price of the  Company's  common  stock was  $0.48 per  share,  the  Company  and
Mercator Momentum Fund and Mercator Focus Fund agreed to further extend from May
14, 2004 until 21 days  following  the closing of a private  placement of equity
financing  of at least  $5,000,000,  but in any case to no later  than  June 30,
2004,  the  period in which  the  Company  is  required  to file a  registration
statement  including  shares of its common stock issued or potentially  issuable
upon  conversion.  Such  shares were  included  in the  Company's  June 15, 2004
registration statement, which was declared effective on July 8, 2004.

On July 12, 2004, when the market price of the Company's  common stock was $0.58
per share,  Mercator  Momentum Fund  converted the remaining  $91,597  principal
balance of its January 2003 10% convertible  debenture and the remaining  $6,113
principal  balance  of its April 2003 12%  convertible  debenture  plus  related
accrued interest and extension fees for each into 285,276  registered  shares of
the Company's common stock.

Extension of Registration Rights

On January 23,  2004,  the  Company  and Marr agreed to extend the  registration
rights period  attributable  to 5,181,818  shares of the Company's  common stock
issued in conjunction with Marr's conversion of $570,000 principal amount of the
Company's 12%  Convertible  Debentures from February 27, 2004 to April 29, 2004.
In  return  for the  extension,  the  Company  agreed  to  include  in its  next
registration  statement an aggregate  of  28,333,333  shares of its common stock
purchased by Marr in PIPE transactions in the third quarter of 2003. On April 23
2004, when the market price of the Common Stock was $0.625, the Company and Marr
agreed to extend  until May 14,  2004 the period  for  filing  the  registration
statement  including  the  shares  issued  to Marr  upon  conversion  of the 12%
convertible debenture and in the 2003 PIPE transactions. On May 7 2004, when the
market price of the Company's  common stock was $0.48 per share,  Marr agreed to
further  extend  from May 14,  2004  until 21 days  following  the  closing of a
private placement of equity financing of at least $5,000,000, but in any case to
no later than June 30, 2004, the period in which the Company is required to file
a  registration  statement  including  shares of its common stock issued to Marr
upon  conversion  of  the  12%  convertible  debenture  and  in  the  2003  PIPE
transactions.   Such  shares  were  included  in  the  Company's  June 15,  2004
registration statement, which was declared effective on July 8, 2004.


                                      F-36


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002


Amendment of Marr Credit Facility

On March 19,  2004,  when the market  price of the  Company's  common  stock was
$0.575 per share,  the  Company and Marr  amended  the Marr  Credit  Facility to
increase  the  aggregate  amount  available  under the Marr  Credit  Facility to
$15,000,000 and to eliminate the termination  provision upon failure to have the
common  stock listed on an  established  stock  exchange by March 31,  2004.  As
additional  consideration  for the  amendment of the Marr Credit  Facility,  the
Company  issued to a party  designated  by Marr a warrant  to  purchase  400,000
shares of its common stock at an exercise price of $0.46 per share. This warrant
is  immediately  exercisable  and expires two years from its date of issuance on
March 18, 2006.  On May 26, 2004,  when the market price of the Common Stock was
$0.46 per share,  the  Company and Marr again  amended the Marr Credit  Facility
whereby Marr has committed to purchase up to $5,000,000 of Promissory Notes that
the Company may issue through  December 31, 2004.  Any Notes issued  pursuant to
this  second  amendment  will  bear  interest  at 9% per  annum  and will have a
maturity date of May 31, 2005. The $5,000,000 amount available under the amended
Marr  Credit  Facility  will be reduced  by the  amount of any equity  financing
obtained by the  Company  after the May 26,  2004  effective  date of the second
amendment and through the December 31, 2004 commitment period,  exclusive of the
proceeds of the May 2004 Private  Placement . At July 14, 2004,  the Company has
issued  no Notes  under  the Marr  Credit  Facility.  As  consideration  for the
extension of the commitment period reflected in the second amendment of the Marr
Credit Facility, the Company issued to Marr a warrant to purchase 500,000 shares
of its Common  Stock at an exercise  price of $0.40 per share.  This  warrant is
immediately  exercisable  and expires two years from its date of issuance on May
26, 2006. The Company  included the shares of its Common Stock  underlying these
three warrants in its June 15, 2004 registration  statement,  which was declared
effective on July 8, 2004.

Additional Financing

May 2004 PIPE

On May 28, 2004,  when the market price of the Company's  Common Stock was $0.50
per share and pursuant to  Regulations  S and D, the Company  issued  15,750,000
restricted  shares  of its  Common  Stock  at a price of  $0.40  per  share to 6
unaffiliated  investors and received  gross  proceeds of  $6,300,000.  Under the
terms of the Marr Credit Facility,  which provides Marr a right of first refusal
to  participate in subsequent  financings on the same terms as other  investors,
Marr  invested  $3,000,000  in this  private  placement  and the Company  issued
7,500,000  restricted shares of its Common Stock to Marr. Under the terms of the
subscription  agreement,   each  investor  received  warrants  to  purchase  the
Company's  Common  Stock in an  amount  equal  to 35% of the  number  of  shares
purchased in the private placement.  Accordingly, the Company issued warrants to
purchase an aggregate of 8,137,500  shares of its Common Stock to the  investors
and  warrants to  purchase  an  additional  630,000  shares of its Common  Stock
pursuant to placement agency agreements. The warrants are exercisable at a price
of $0.50  per share for a period  of five  years  from the May 28,  2004 date of
issuance.

The securities  purchase  agreements for the May 2004 PIPE provide the investors
with participation rights on the same terms and conditions as other investors in
any subsequent  financing  transactions the Company may complete within one year
of the closing of this  placement.  The shares  issued  pursuant to the May 2004
PIPE and the related  warrants also contain  anti-dilution  provisions that will
require the Company to issue  additional  shares of its common stock to the PIPE
investors and modify their outstanding warrants if the Company raises additional
equity  financing  at a price  below $0.40 per share in the year  following  the
closing of the PIPE  transaction,  except  under the  provisions  of  previously
outstanding  convertible  debt,  option or warrant  agreements.  The Company has
granted  piggyback  registration  rights and was required to register the shares
issued in the May 2004 PIPE and the shares  underlying the related warrants in a
registration  statement  on Form SB-2 no later than June 18,  2004.  Such shares
were included in the Company's June 15, 2004 registration  statement,  which was
declared  effective  on July 8, 2004.


July 2004 PIPE

On July 9, 2004, when the market price of the Company's  Common Stock was $0.615
per share and pursuant to Regulation S, the Company issued 3,720,000  restricted
shares  of its  Common  Stock at a price of $0.40  per  share to 5  unaffiliated
investors  and received  gross  proceeds of  $1,488,000.  Under the terms of the
subscription  agreement,   each  investor  received  warrants  to  purchase  the
Company's  Common  Stock in an  amount  equal  to 70% of the  number  of  shares
purchased in the private placement.  Accordingly, the Company issued warrants to
purchase an aggregate of 2,604,000  shares of its Common Stock to the  investors
and  warrants to  purchase  an  additional  148,800  shares of its Common  Stock
pursuant to placement agency agreements. The warrants are exercisable at a price
of $0.50  per share  for a period  of five  years  from the July 9, 2004 date of
issuance.


                                      F-37


                         CALYPTE BIOMEDICAL CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                           December 31, 2003 and 2002

The securities  purchase agreements for the July 2004 PIPE provide the investors
with participation rights on the same terms and conditions as other investors in
any subsequent  financing  transactions the Company may complete within one year
of the closing of this  placement.  The shares issued  pursuant to the July 2004
PIPE and the related  warrants also contain  anti-dilution  provisions that will
require the Company to issue  additional  shares of its common stock to the PIPE
investors and modify their outstanding warrants if the Company raises additional
equity  financing  at a price  below $0.40 per share in the year  following  the
closing of the PIPE  transaction,  except  under the  provisions  of  previously
outstanding  convertible  debt,  option or warrant  agreements.  The Company has
granted registration rights and is required to register the shares issued in the
July 2004 PIPE and the shares  underlying the related warrants in a registration
statement on Form SB-2 no later than July 23, 2004.

Management Changes

On January 24, 2004, the Company announced the appointment of J. Richard George,
Ph.D. as its new President and Chief Executive Officer and Richard Van Maanen as
its new Vice  President  of  Operations.  The Company  also  announced  that Jay
Oyakawa had resigned from his position as President, Chief Operating Officer and
as a member of the  Company's  Board of  Directors.  The Company  entered into a
Separation  Agreement  and Release  with Mr.  Oyakawa  wherein he will be paid a
severance  of one year's  salary of $350,000  over a twelve month period and was
vested in options to  purchase  750,000  shares of the  Company's  common  stock
exercisable at $0.32 granted to him in accordance with the Company's 2000 Equity
Incentive  Plan.  Dr. George has been the Company's Vice President of Government
Affairs  since  January 2003 and Mr. Van Maanen has been employed by the Company
since 1993 as Director of  Marketing  and  Director  of  International  Business
Development.

Operating Leases

In March 2004, the Company  entered into a new lease  agreement with the primary
landlord of its manufacturing facility in Rockville, Maryland. The new agreement
extends the lease of the premises through February 28, 2009, or 28 months beyond
the expiration of the curent sublease.  Additionally, the new lease provides for
tenant improvements to be made in connection with the Company's consolidation of
its  manufacturing  operations at this  facility in the amount of  approximately
$250,000. The base rent for the tenant improvements will be approximately $5,500
per month from March 2004 through October 2006.  Following the expiration of the
Company's  current  sublease,  the base rent from November 2006 through February
2009 will be approximately $40,000 per month.

The  Company's  lease of its  office  and  manufacturing  facility  in  Alameda,
Californa  expired on June 30, 2004. The Company has initiated the consolidation
of its domestic manufacturing operations at its Rockville facility and completed
the physical relocation of its Alameda operations prior to the expiration of the
Alameda  lease.  On May 7,  2004,  the  Company  signed a three  year lease that
commenced on June 18, 2004 for  approximately  4,400 square feet of office space
in Pleasanton,  California that now houses its corporate headquarters.  The base
rent for the Pleasanton office space will be approximately  $7,750 per month for
the term of the lease.

Informal Inquiry by SEC

By letter dated July 14,  2004,  the SEC  Division of  Enforcement  notified the
Company that the matter has been  terminated and that no enforcement  action has
been recommended by the Commission at this time.


                                      F-38


                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                      CONDENSED CONSOLIDATED BALANCE SHEETS
                 (in thousands, except share and per share data)
                                   (Unaudited)



                                                                                                 March 31,    December 31,
                                                                                                     2004           2003
                                                                                               ------------   ------------
                                                                                                        

                                              ASSETS
     Current assets:
     Cash and cash equivalents                                                                   $   1,656      $   5,084
     Accounts receivable, net of allowance of $36 at March 31, 2004 and December 31, 2003              446            369
     Inventory                                                                                       2,165          2,153
     Prepaid expenses                                                                                  858            872
     Deferred offering costs, net of accumulated amortization of $347 and $333 at March 31,
     2004 and December 31, 2003, respectively                                                            -             14
     Other current assets                                                                               60             63
                                                                                                ----------     ----------

     Total current assets                                                                            5,185          8,555

     Property and equipment, net                                                                       871            727
     Other assets                                                                                      285            235
                                                                                                 ---------      ---------

                                                                                                  $  6,341       $  9,517
                                                                                                  ========       ========
                          LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
     Current liabilities:
     Accounts payable and accrued expenses                                                      $    4,186     $    4,322
     Notes and debentures payable, net of discount of $45 and $90 at March 31, 2004 and
     December 31, 2003, respectively                                                                   913            868
     Deferred revenue                                                                                  500            500
                                                                                                ----------     ----------

     Total current liabilities                                                                       5,599          5,690

     Other long term liabilities                                                                       140            157

     Mandatorily  redeemable  Series A  preferred  stock,  $0.001 par value;  no
     shares  authorized at March 31, 2004 and December 31, 2003;  100,000 shares
     issued and  outstanding at March 31, 2004 and December 31, 2003;  aggregate
     redemption and liquidation value of $1,000 plus cumulative dividends
                                                                                                     2,726          2,696

     Minority interest in consolidated joint venture                                                     57             57
                                                                                               ------------   ------------

     Total liabilities                                                                               8,522          8,600
                                                                                                ----------     ----------

     Commitments and contingencies

     Stockholders' equity (deficit):
     Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued or                 -              -
     outstanding
     Common stock, $0.03 par value; 800,000,000 shares authorized at March 31, 2004 and
     December 31, 2003; 137,050,557 and 136,300,885 shares issued and outstanding as of
     March 31, 2004 and December 31, 2003, respectively                                              4,112          4,089
     Additional paid-in capital                                                                    125,618        124,699
     Deferred compensation                                                                              (7)            (7)
     Accumulated deficit                                                                          (131,904)      (127,864)
                                                                                                  --------       --------

     Total stockholders' equity (deficit)                                                           (2,181)           917
                                                                                                ----------     ----------

                                                                                                 $   6,341      $   9,517
                                                                                                 =========      =========


          See accompanying notes to consolidated financial statements.

                                      F-39


                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                      (in thousands, except per share data)
                                   (unaudited)



                                                                                                    Three months ended
                                                                                                         March 31,
                                                                                                ----------------------------
                                                                                                    2004           2003
                                                                                                -------------- -------------
                                                                                                         
      Revenues:
         Product sales                                                                              $    971      $  784
                                                                                                    --------      ------

      Operating expenses:
         Product costs                                                                                 1,980       1,415
         Research and development costs                                                                  541         314
         Selling, general and administrative costs (non-cash of $371 and $2,219 for the three
           months ended March 31, 2004 and 2003, respectively)                                         2,196       4,009
                                                                                                       -----     -------

           Total operating expenses                                                                    4,717       5,738
                                                                                                       -----       -----

             Loss from operations                                                                     (3,746)     (4,954)
      Interest expense, net (non-cash of $255 and $1,373 for the three months ended March 31,
         2004 and 2003, respectively)                                                                   (297)     (1,516)
      Other income, net (non-cash)                                                                         5         128
                                                                                                   ---------    --------

             Loss before income taxes                                                                 (4,038)     (6,342)

      Income taxes                                                                                         2           2
                                                                                                   ---------   ---------

             Net loss                                                                                 (4,040)     (6,344)

      Less dividends on mandatorily redeemable Series A preferred stock                                    -         (30)
                                                                                                   ---------    --------

      Net loss attributable to common stockholders                                                $   (4,040)   $ (6,374)
                                                                                                    ========     =======

      Net loss per share attributable to common stockholders (basic and diluted)                  $   (0.03)      $ (1.11)
                                                                                                    =======         =====

      Weighted average shares used to compute net loss per share attributable to common
         stockholders (basic and diluted)                                                            136,679       5,755
                                                                                                     =======       =====


          See accompanying notes to consolidated financial statements.

                                      F-40



                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT
                        Three Months Ended March 31, 2004
                                   (unaudited)

                        (in thousands, except share data)




                                                                                                                 Total
                                        Number of     Common       Additional      Deferred    Accumulated   Stockholders'
                                      Common Shares     Stock     Paid-in Capital Compensation    Deficit        Equity
                                                                                                               (Deficit)
       ----------------------------   -------------   ---------    -------------  -----------   -----------   -----------
                                                                                            
        Balances at December 31,       136,300,885    $   4,089     $ 124,699    $       ( 7)  $ (127,864)    $      917
          2003
        Stock issued in lieu of
          cash to employees,
          vendors and consultants          596,289          18            389              -            -            407
        Shares issued upon
          conversion of debentures,
          accrued interest and             127,742           4             62              -            -             66
          delayed registration
          penalties
        Shares issued upon exercise
          of warrants and options           25,641           1              3              -            -              4
        Compensation related to
          stock option grants                    -           -            465              -            -            465
        Net loss                                 -           -              -              -       (4,040)        (4,040)
                                      -------------   ---------    -------------  -----------   -----------   -----------

        Balances at March 31, 2004     137,050,557    $  4,112      $ 125,618    $       ( 7)  $ (131,904)   $     (2,181)
                                       ===========    ========      =========    ============  ==========    ============


          See accompanying notes to consolidated financial statements.

                                      F-41


                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (unaudited)



                                                                                                       Three Months Ended
                                                                                                           March 31,
                                                                                                  -----------------------------
                                                                                                      2004           2003
                                                                                                  -------------- --------------
                                                                                                           
         Cash flows from operating activities:
         Net loss                                                                                   $   (4,040)  $     (6,344)
         Adjustments to reconcile net loss to net cash used in operating activities:
            Depreciation and amortization                                                                  100            134
            Amortization of deferred compensation                                                            1              -
            Non-cash interest expense attributable to:
              Amortization of debenture discounts and charge for beneficial conversion feature              44            840
              Amortization of deferred offering costs                                                       13            184
              Liquidated damages due to delayed registration of stock underlying convertible               (80)           312
              debentures
              Dividends on mandatorily redeemable Series A preferred stock                                  30              -
            Non-cash loss (gain) on settlement of trade debt                                                 -             55
            Fair market value of common stock warrants, options and bonuses granted                        713          2,214
            Gain on repurchase of beneficial conversion feature                                              -           (128)
            Warrant liability adjustment                                                                     -             37
            Loss on sale of equipment                                                                        3              -
            Changes in operating assets and liabilities:
              Accounts receivable                                                                          (77)             8
              Inventory                                                                                    (12)          (308)
              Prepaid expenses and other current assets                                                   (147)          (130)
              Deferred offering costs and other assets                                                     (50)            20
              Accounts payable and accrued expenses                                                        334            314
              Other long-term liabilities                                                                  (14)             1
                                                                                                     ---------       --------

                Net cash used in operating activities                                                   (3,182)        (2,791)
                                                                                                     ---------       --------

         Cash flows from investing activities:
            Purchase of equipment                                                                         (247)           (16)
                                                                                                     ---------       --------

                Net cash used in investing activities                                                     (247)           (16)
                                                                                                     ---------       --------

         Cash flows from financing activities:
            Proceeds from sale of stock                                                                      4          1,661
            Expenses related to sale of stock                                                                -            (50)
            Net proceeds from issuance of notes and debentures                                               -          1,658
            Repayment of notes and debentures                                                                -           (318)
            Principal payments on capital lease obligations                                                 (3)             3
                                                                                                     ---------       --------

                Net cash provided by financing activities                                                    1          2,954
                                                                                                     ---------       --------

         Net increase (decrease) in cash and cash equivalents                                           (3,428)           147

         Cash and cash equivalents at beginning of period                                                5,084            147
                                                                                                      --------       --------

         Cash and cash equivalents at end of period                                                  $   1,656      $     294
                                                                                                      ========       ========


                                   (continued)

                                      F-42



                 CALYPTE BIOMEDICAL CORPORATION AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

                                 (in thousands)



                                                                                                       Three Months Ended
                                                                                                           March 31,
                                                                                                  -----------------------------
                                                                                                      2004           2003
                                                                                                  -------------- --------------
                                                                                                            
         Supplemental disclosure of cash flow activities:
            Cash paid for interest                                                                  $       23      $       3
            Cash paid for income taxes                                                                       2              2

         Supplemental disclosure of non-cash activities:
            Dividend on mandatorily redeemable Series A preferred stock                                      -             30
            Common stock grants                                                                              -            292
            Conversion of notes and debentures payable and accrued interest to common stock                 66            635
            Beneficial conversion feature, net of write off upon conversion                                  -            827
            Accrued interest converted to note payable                                                       -             42


           See accompanying notes to consolidated financial statements

                                      F-43


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)


(1)  The Company and Basis of Presentation

Calypte   Biomedical   Corporation   ("Calypte"  or  the  "Company")   develops,
manufactures  and markets in vitro  diagnostic tests primarily for the detection
of antibodies  to the Human  Immunodeficiency  Virus ("HIV") and other  sexually
transmitted and infectious  diseases.  We have historically focused our business
on urine-based  screening and  supplemental  tests for use in  laboratories.  By
integrating  several proprietary  technologies,  we developed urine HIV antibody
tests, the Calypte  urine-based enzyme immunoassay  ("EIA") HIV Type 1 ("HIV-1")
screening test and the Cambridge Biotech  urine-based HIV-1 western blot ("Urine
Western Blot")  supplemental  test. We also manufacture and market the Cambridge
Biotech  serum-based  western blot ("Serum Western Blot")  supplemental test for
detecting HIV-1 antibodies in serum.  Our revenues are currently  generated from
sales of these  three  products,  which we refer to  collectively  as our "ELISA
tests." The ELISA tests are manufactured in formats that make them most suitable
for high-volume laboratory settings.

We are the only company with Food and Drug  Administration  ("FDA") approval for
the  marketing  and sale of  urine-based  HIV-1  antibody  tests.  Our EIA HIV-1
screening test received FDA approval for use in laboratories in August 1996. Our
Urine  Western Blot  supplemental  test  received FDA approval in May 1998.  Our
urine-based ELISA tests together,  with their screening and confirmatory testing
components, are the only complete FDA approved urine-based HIV testing method.

Our  business is also  involved in  developing  new test  products for the rapid
detection  of HIV-1 and HIV Type 2, a second  type of HIV  ("HIV-2"),  and other
infectious  diseases.  Rapid tests  provide test results in less than 20 minutes
and are particularly  suitable for point-of-care  testing,  especially in lesser
developed countries which lack the medical  infrastructure to support laboratory
based testing. We are currently developing both serum- and urine-based HIV-1 and
HIV-2 rapid tests and are  evaluating an oral fluid  version of these tests.  We
anticipate that our primary focus for the current and longer-term future will be
the  development,  manufacture  and  sale  of  our  rapid  test  products,  both
internationally and domestically.

The accompanying unaudited condensed consolidated financial statements have been
prepared by the Company, pursuant to the rules and regulations of the Securities
and Exchange Commission ("SEC"), and reflect all adjustments (consisting only of
normal recurring adjustments) which, in the opinion of management, are necessary
for a fair presentation of the Company's financial position as of March 31, 2004
and the results of its  operations for the three months ended March 31, 2004 and
2003 and its cash  flows for the three  months  ended  March 31,  2004 and 2003.
Interim results are not necessarily indicative of the results to be expected for
the full year. This information should be read in conjunction with the Company's
audited consolidated  financial statements for each of the years in the two year
period ended December 31, 2003 included in its Form 10-KSB filed with the SEC on
March 30, 2004.

Certain information in footnote  disclosures  normally included in the financial
statements prepared in accordance with accounting  principles generally accepted
in the United  States of America has been  condensed or omitted  pursuant to the
rules  and  regulations  of the SEC.  The  data  disclosed  in  these  condensed
consolidated financial statements and in the related notes is unaudited.

During the first quarter of 2004,  Calypte incurred a net loss of $4 million and
its accumulated deficit at March 31, 2004 was $132 million.

During March 2004, the Company  amended a financing  arrangement  that currently
provides a  commitment  for up to  $15,000,000  in proceeds  from the  Company's
issuance  of 5%  Promissory  Notes  having a term of one year  that it may issue
prior to May 31, 2004. (See Note 5.) This agreement provides that the commitment
will be reduced  dollar-for  dollar for any equity  financing  that the  Company
might complete during the term of the agreement.  The Company has not issued any
notes under this agreement.  Management  believes that the funds available under
this  commitment  plus its current cash balances will provide  adequate funds to
sustain  operations at expected levels at least into the second quarter of 2005.
To the extent  that the Company  issues one or more notes  under this  financing
arrangement, however, it must repay that note at its maturity date in the second
quarter of 2005. The Company must achieve  profitability  and  sustainable  cash
flows for its business model to succeed.  If sufficient  funds are not


                                      F-44


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)

available from the Company's  operations to repay the promissory  note when due,
however, the Company may need to arrange additional financing, attempt to extend
or otherwise modify the promissory note or make other arrangements. There can be
no  assurance  that  additional  financing  would  be  available,  or  it  if is
available,  that it would be on acceptable terms. The Company's future liquidity
and capital  requirements will depend on numerous factors,  including successful
completion of the development of its new rapid tests, acquisition and protection
of intellectual  property rights, costs of developing its new products,  ability
to transfer technology,  set up manufacturing and obtain regulatory approvals of
its new  rapid  tests,  market  acceptance  of all its  products,  existence  of
competing  products in its current and anticipated  markets,  actions by the FDA
and other  international  regulatory bodies, and its ability to raise additional
capital in a timely manner.  The Company may seek to raise  additional  capital;
however,  the  Company  may  not be  able  to  obtain  additional  financing  on
acceptable terms, or at all.

(2)  Significant Accounting Policies

Stock-Based Compensation

Statement of  Financial  Accounting  Standards  (SFAS) No. 123,  Accounting  for
Stock-Based Compensation, as amended by SFAS No. 148, Accounting for Stock-Based
Compensation - Transition  and  Disclosure,  establishes a fair-value  method of
accounting  for stock options and similar  equity  instruments.  The  fair-value
method requires that  compensation cost be measured on the value of the award at
the grant date, and recognized over the service period.  SFAS No. 123 as amended
allows  companies to either account for  stock-based  compensation  to employees
under the  provisions  of SFAS No.  123 as amended  or under the  provisions  of
Accounting   Principles   Board   (APB)   Opinion   No.   25  and  its   related
interpretations.  The  Company  accounts  for its  stock-based  compensation  to
employees in accordance with the provisions of APB Opinion No. 25.

The Company has  recorded  deferred  compensation  for the  difference,  if any,
between the exercise  price and the deemed fair market value of the common stock
for  financial  reporting  purposes of stock options  granted to employees.  The
compensation expense related to such grants is amortized over the vesting period
of the related stock options on a straight-line basis.

The  Company  accounts  for  equity   instruments  issued  to  non-employees  in
accordance with the provisions of SFAS No. 123, as amended,  and Emerging Issues
Task Force (EITF) Issue No. 96-18  Accounting  for Equity  Instruments  that Are
Issued to Other than  Employees for Acquiring,  or in Conjunction  with Selling,
Goods or Services.

Had the  Company  determined  compensation  cost  based on the fair value at the
grant date for its employee  stock  options and  purchase  rights under SFAS No.
123, the Company's  net loss would have been  increased to the pro forma amounts
indicated below for the three month periods ended March 31:




                                                                                Three months ended
                                                                                    March 31,
                                                                            ------------------------
                                                                                 2004        2003
                                                                            ----------  ------------
                                                                                  
Net loss attributable to common stockholders, as reported                   $   (4,040)  $   (6,374)
Add: Stock-based compensation expense included in reported net loss, net
   of related tax effects                                                          225           84
Less: Stock-based compensation expense determined under fair value based
   method for all awards, net of related tax effects                            (1,086)        (104)
                                                                             ---------    ---------
Pro forma net loss attributable to common stockholders                        $ (4,901)   $  (6,394)
                                                                              =========   ==========

Basic and diluted net loss per share attributable to common stockholders:
As reported                                                                   $  (0.03)    $  (1.11)
Pro forma                                                                     $  (0.04)    $  (1.11)




                                      F-45



                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)

Net Loss Per Share Attributable to Common Stockholders

Basic net loss per share  attributable  to common  stockholders  is  computed by
dividing net loss  attributable to common  stockholders by the weighted  average
number of shares of common stock outstanding  during the period  presented.  The
computation of diluted net loss per share attributable to common stockholders is
similar to the  computation of basic net loss per share  attributable  to common
stockholders,   except  that  the  denominator  is  increased  for  the  assumed
conversion of convertible  securities and the exercise of dilutive options using
the treasury stock method.  The weighted  average shares used in computing basic
and  diluted  net  loss  per  share  attributable  to  common  stockholders  are
equivalent  for the periods  presented.  Options and warrants for 10,200,899 and
1,144,729  shares at March 31, 2004 and 2003,  respectively,  were excluded from
the computation of loss per share  attributable to common  stockholders as their
effect was anti-dilutive.

The difference between net loss and net loss attributable to common stockholders
for the  period  ended  March 31,  2003  relates  to  accrued  dividends  on the
Company's mandatorily  redeemable Series A preferred stock. In the third quarter
of 2003,  the  Company  adopted  Statement  of  Financial  Accounting  Standards
("SFAS")  No.  150,   "Accounting  for  Certain   Financial   Instruments   with
Characteristics of Both Liabilities and Equity," which establishes standards for
how an  issuer  classifies  and  measures  certain  financial  instruments  with
characteristics  of both  liabilities and equity,  many of which were previously
classified as equity or on the "mezzanine." In conformity with SFAS No. 150, the
Company has classified its mandatorily  redeemable Series A preferred stock as a
long term  liability  for all  periods  presented  and has,  effective  with the
adoption of SFAS No. 150, classified the dividend on the mandatorily  redeemable
Series A preferred stock as interest  expense in its  consolidated  statement of
operations.

Use of Estimates

The preparation of financial statements in accordance with accounting principles
generally  accepted in the United States of America requires  management to make
estimates  and  assumptions  that affect the amounts  reported in the  Company's
financial  statements and accompanying  notes.  Actual results could differ from
those estimates.

Recent Accounting Pronouncements

In April  2003,  the  FASB  issued  SFAS  149,  Amendment  of  Statement  133 on
Derivative  Instruments  and  Hedging  Activities.  This  statement  amends  and
clarifies  the  financial  accounting  and  reporting   requirements,   as  were
originally  established  in SFAS 133,  for  derivative  instruments  and hedging
activities.  SFAS 149 provides greater clarification of the characteristics of a
derivative  instrument so that  contracts with similar  characteristics  will be
accounted for  consistently.  This statement is effective for contracts  entered
into or  modified  after June 30,  2003,  as well as for  hedging  relationships
designated after June 30, 2003,  excluding  certain  implementation  issues that
have been effective prior to this date under SFAS 133. The Company's adoption of
this  statement  has not had a material  impact on its results of  operations or
financial condition.

In January 2003, the FASB issued FASB Interpretation (FIN) No. 46, Consolidation
of Variable Interest Entities, an Interpretation of Accounting Research Bulletin
No. 51.  FIN 46  provides  guidance  on how to apply the  controlling  financial
interest criteria in ARB 51 to variable  interest  entities  ("VIE").  Given the
complexity  of FIN 46 and  implementation  issues after its  original  issuance,
particularly  with  respect to its scope and  application  of the  consolidation
model,  the FASB staff issued several FASB staff  positions  throughout  2003 to
clarify the Board's  intent on certain of the  interpretation's  provisions.  In
December 2003, the Board issued FIN 46R to address certain technical corrections
and clarify the implementation issues that had arisen.

In  general,  a VIE is subject to  consolidation  if it has (1) an  insufficient
amount of equity for the  entity to carry on its  principal  operations  without
additional  subordinated  financial support provided by any parties, (2) a group
of equity owners that are unable to make decisions about the entity's activities
or (3) equity that does not absorb the  entity's  losses or receive the entity's
benefits. Variable interest entities are to be evaluated for consolidation based
on all  contractual,  ownership or other  interests that expose their holders to
the  risks and  rewards  of the  entity.  These  interests  may  include  equity
investments,  loans,  leases,  derivatives,  guarantees,  service and management
contracts and other instruments whose values change with changes in the VIE. Any
of these interests may require its holder to


                                      F-46


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)


consolidate  the entity.  The holder of a variable  interest  that  receives the
majority of the potential variability in gains or losses of the VIE is the VIE's
primary  beneficiary  and is required  to  consolidate  the VIE.  FIN 46R became
effective immediately for entities created after January 31, 2003. It applies in
the first fiscal year or interim  period  beginning  after December 15, 2003, to
variable interest entities in which an enterprise holds a variable interest that
it acquired  before  February  1, 2003.  The  Company  has  determined  that the
adoption of the  provisions of FIN 46 will not have an impact upon its financial
condition or results of operations.

In December 2003, the  Securities and Exchange  Commission  ("SEC") issued Staff
Accounting  Bulletin No. 104,  Revenue  Recognition  (SAB 104), which superseded
Staff Accounting Bulletin No. 101, Revenue  Recognition in Financial  Statements
(SAB 101). SAB 104 rescinds  accounting guidance contained in SAB 101 related to
multiple element revenue arrangements, superseded as a result of the issuance of
Emerging Issues Task Force Issue No. 00-21 (EITF 00-21),  Accounting for Revenue
Arrangements  with  Multiple  Deliverables.  Additionally,  SAB 104 rescinds the
SEC's Revenue Recognition in Financial Statements Frequently Asked Questions and
Answers  (the FAQ) issued  with SAB 101 that had been  codified in SEC topic 13,
Revenue  Recognition.  While the  wording of SAB 104 has  changed to reflect the
issuance of EITF 00-21,  the revenue  recognition  principles  of SAB 101 remain
largely unchanged by the issuance of SAB 104. The Company adopted SAB 104 on the
first  day of its 2004  fiscal  year.  The  adoption  of SAB 104 did not have an
impact on the Company's financial condition or results of operations.

(3)  Inventories

Inventory as of March 31, 2004 and December 31, 2003  consisted of the following
(in thousands):

                                           2004             2003
                                           ----             ----

Raw materials                           $    515         $    708
Work-in-process                            1,338              962
Finished goods                               312              483
                                         -------         --------

Total Inventory                          $ 2,165          $ 2,153
                                         =======          =======


(4)  Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses as of March 31, 2004 and December 31, 2003
consisted of the following (in thousands):




                                                                                     2004             2003
                                                                                ---------        ---------
                                                                                           
Trade accounts payable                                                           $   2,049        $   2,189
Accrued royalty payments                                                               551              582
Accrued salary, severance and vacation pay                                             498              125
Accrued interest (including non-cash penalties for delayed registration of
  $125 and $271 at March 31, 2004 and December 31, 2003, respectively)                 218              308
Other                                                                                  870            1,118
                                                                                  --------          -------

Total accounts payable and accrued expenses                                       $  4,186         $  4,322
                                                                                  ========         ========



(5)  Notes and Debentures Payable

On January 14,  2004,  when the market price of the  Company's  common stock was
$0.60 per share,  the Company  obtained  extensions  of the maturity date of the
following  debentures  until July 14, 2004:

o    10%  Convertible  Debenture dated January 14, 2003 issued to Mercator Focus
     Fund, LP

o    10%  Convertible  Debenture  dated  January  30,  2003  issued to  Mercator
     Momentum Fund, LP

o    10%  Convertible  Debentures  dated March 13, 2003 issued to Mercator Focus
     Fund, LP

o    12% Convertible  Debenture dated April 29, 2003 issued to Mercator Momentum
     Fund, LP


                                      F-47


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)

In return for the extension of the maturity dates, the Company has agreed to pay
an additional extension fee equal to 2% of the outstanding principal balance per
month  until the  earlier  of the  extended  maturity  date or  conversion.  The
extension  fee is  payable 1% in cash and 1% in shares of the  Company's  common
stock.  Additionally,  the  Company  agreed  to  file a  registration  statement
including the shares potentially applicable to the conversion of the outstanding
debenture  balances by no later than April 29,  2004.  The shares  issuable as a
portion of the extension fee are to be included in the  registration  statement.
The Company  issued no new notes or debentures  nor were there any repayments or
conversions  of any  debentures  during the first  quarter of 2004.  See Note 7,
Subsequent  Events,  regarding the conversion of certain of the debentures after
March 31, 2004 and a further  extension  of the period in which the Company must
file a registration statement.

Amendment of 5% Note Purchase Agreement

On March 19,  2004,  when the market  price of the  Company's  common  stock was
$0.575 per share,  the Company  and Marr  Technologies  BV ("Marr")  amended the
agreement  under which Marr was  obligated to purchase up to  $10,000,000  of 5%
Promissory  Notes which the Company may issue between  February 28, 2004 and May
31, 2004 (the "Marr Credit Facility") to increase the aggregate amount available
under the Marr Credit  Facility to $15,000,000  and to eliminate the termination
provision upon failure to have the common stock listed on an  established  stock
exchange by March 31,  2004.  As  consideration  for the  amendment  of the Marr
Credit  Facility,  the Company issued to a party designated by Marr a warrant to
purchase  400,000  shares of its common stock at an exercise  price of $0.46 per
share.  The warrant is  immediately  exercisable  and expires two years from its
date of  issuance on March 18,  2006.  The Company did not issue any notes under
the Marr Credit Facility during the first quarter of 2004.

(6)  Stockholders' Equity (Deficit) Extension of Registration Rights

On January 23,  2004,  when the market price of the  Company's  common stock was
$0.695 per share, the Company and Marr agreed to extend the registration  rights
period  attributable to 5,181,818 shares of the Company's common stock issued in
conjunction with Marr's conversion of $570,000 principal amount of the Company's
12%  Convertible  Debentures from February 27, 2004 to April 29, 2004. In return
for the  extension,  the  Company  agreed to  include  in its next  registration
statement  an aggregate of  28,333,333  shares of its common stock  purchased by
Marr in PIPE  transactions  in the third quarter of 2003. See Note 7, Subsequent
Events,  regarding a further  extension  of the period in which the Company must
file a registration statement.

Warrants, options and stock grants

During  the  first  quarter  of  2004,  the  Company  issued  stock  grants  for
approximately 596,000 shares of its common stock, including grants from its 2003
Non-Qualified   Stock  Option  Plan,  as  compensation  under  three  consulting
agreements.  The Company recorded non-cash selling,  general and  administrative
expense of $371,000  attributable  to stock grants made in the first  quarter of
2004, the amortized  expense  attributable to stock grants made in prior periods
and the first quarter 2004 grant of below-market options granted to an employee,
for which the expense was recognized using the intrinsic value method.

(7)  Subsequent Events

Conversion of Mercator  Debentures  and Extension of Time to File a Registration
Statement

On April 22,  2004,  when the market  price of the  Company's  common  stock was
$0.625 per share,  Mercator Focus Fund converted the remaining  $577,754 balance
of its January 2003 10% convertible  debenture plus related accrued interest and
extension fees into 2,109,366 shares of restricted  common stock.  Also on April
22, 2004,  Mercator Focus Fund converted the remaining  $222,318  balance of its
March 2003 10% convertible debenture plus related accrued interest and extension
fees into 991,465 shares of restricted common stock.


                                      F-48


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)

On April 23,  2004,  when the market  price of the  Company's  common  stock was
$0.625 per share,  Mercator Focus Fund and Mercator Momentum Fund each agreed to
extend from April 29, 2004 until May 14, 2004 the period in which the Company is
required to file a registration  statement  including shares of its common stock
previously issued to them or, in the case of Mercator Momentum Fund, issuable to
it upon  conversion of outstanding  debentures.  On May 7, 2004, when the market
price of the  Company's  common  stock was  $0.48 per  share,  the  Company  and
Mercator Momentum Fund and Mercator Focus Fund agreed to further extend from May
14, 2004 until 21 days  following  the closing of a private  placement of equity
financing  of at least  $5,000,000,  but in any case to no later  than  June 30,
2004,  the  period in which  the  Company  is  required  to file a  registration
statement  including  shares of its common stock issued or potentially  issuable
upon  conversion.  Such  shares  were  included  in the  Company's June 15, 2004
registration statement, which was declared effective on July 8, 2004.

On July 12, 2004, when the market price of the Company's  common stock was $0.58
per share,  Mercator  Momentum Fund  converted the remaining  $91,597  principal
balance of its January 2003 10% convertible  debenture and the remaining  $6,113
principal  balance  of its April 2003 12%  convertible  debenture  plus  related
accrued interest and extension fees for each into 285,276  registered  shares of
the Company's common stock.

Extension of Marr Registration Rights

On April 23 2004,  when the  market  price of the  Company's  Common  Stock  was
$0.625,  the Company and Marr agreed to extend until May 14, 2004 the period for
filing the  registration  statement  including  the  shares  issued to Marr upon
conversion of the 12% convertible  debenture and in the 2003 PIPE  transactions.
On May 7, 2004,  when the market price of the  Company's  common stock was $0.48
per  share,  Marr  agreed to  further  extend  from May 14,  2004  until 21 days
following  the closing of a private  placement  of equity  financing of at least
$5,000,000,  but in any case to no later than June 30, 2004, the period in which
the Company is required to file a registration statement including shares of its
common stock issued to Marr upon conversion of the 12% convertible debenture and
in the 2003 PIPE  transactions.  Such shares were included in the Company's June
15, 2004 registration statement, which was declared effective on July 8, 2004.

Amendment of Marr Credit Facility

On May 26, 2004,  when the market price of the Common Stock was $0.46 per share,
the Company and Marr again  amended the Marr Credit  Facility  whereby  Marr has
committed to purchase up to $5,000,000 of Promissory  Notes that the Company may
issue  through  December  31,  2004.  Any Notes  issued  pursuant to this second
amendment  will bear  interest at 9% per annum and will have a maturity  date of
May 31, 2005.  The  $5,000,000  amount  available  under the amended Marr Credit
Facility will be reduced by the amount of any equity  financing  obtained by the
Company  after the May 26,  2004  effective  date of the  second  amendment  and
through the December 31, 2004  commitment  period,  exclusive of the proceeds of
the May 2004  Private  Placement.  At July 14,  2004,  the Company has issued no
Notes under the Marr Credit Facility.  As consideration for the extension of the
commitment period reflected in the second amendment of the Marr Credit Facility,
the Company  issued to Marr a warrant to purchase  500,000  shares of its Common
Stock at an  exercise  price of $0.40 per share.  This  warrant  is  immediately
exercisable and expires two years from its date of issuance on May 26, 2006. The
Company  included the shares of its Common Stock underlying these three warrants
in its June 15, 2004  registration  statement,  which was declared  effective on
July 8, 2004.

Additional Financing

May 2004 PIPE

On May 28, 2004,  when the market price of the Company's  Common Stock was $0.50
per share and pursuant to  Regulations  S and D, the Company  issued  15,750,000
restricted  shares  of its  Common  Stock  at a price of  $0.40  per  share to 6
unaffiliated  investors and received  gross  proceeds of  $6,300,000.  Under the
terms of the Marr Credit Facility,  which provides Marr a right of first refusal
to  participate in subsequent  financings on the same terms as other  investors,
Marr  invested  $3,000,000  in this  private  placement  and the Company  issued
7,500,000  restricted


                                      F-49


                         CALYPTE BIOMEDICAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             March 31, 2004 and 2003
                                   (Unaudited)

shares  of its  Common  Stock  to Marr.  Under  the  terms  of the  subscription
agreement,  each investor  received  warrants to purchase the  Company's  Common
Stock in an amount equal to 35% of the number of shares purchased in the private
placement.  Accordingly, the Company issued warrants to purchase an aggregate of
8,137,500  shares of its Common Stock to the  investors and warrants to purchase
an additional  630,000 shares of its Common Stock  pursuant to placement  agency
agreements.  The  warrants are  exercisable  at a price of $0.50 per share for a
period of five years from the May 28, 2004 date of issuance.

The securities  purchase  agreements for the May 2004 PIPE provide the investors
with participation rights on the same terms and conditions as other investors in
any subsequent  financing  transactions the Company may complete within one year
of the closing of this  placement.  The shares  issued  pursuant to the May 2004
PIPE and the related  warrants also contain  anti-dilution  provisions that will
require the Company to issue  additional  shares of its common stock to the PIPE
investors and modify their outstanding warrants if the Company raises additional
equity  financing  at a price  below $0.40 per share in the year  following  the
closing of the PIPE  transaction,  except  under the  provisions  of  previously
outstanding  convertible  debt,  option or warrant  agreements.  The Company has
granted  piggyback  registration  rights and was required to register the shares
issued in the May 2004 PIPE and the shares  underlying the related warrants in a
registration  statement  on Form SB-2 no later than June 18,  2004.  Such shares
were included in the Company's July 6, 2004  registration  statement,  which was
initially  filed on June 15, 2004 and which was  declared  effective  on July 8,
2004.

July 2004 PIPE

On July 9, 2004, when the market price of the Company's  Common Stock was $0.615
per share and pursuant to Regulation S, the Company issued 3,720,000  restricted
shares  of its  Common  Stock at a price of $0.40  per  share to 5  unaffiliated
investors  and received  gross  proceeds of  $1,488,000.  Under the terms of the
subscription  agreement,   each  investor  received  warrants  to  purchase  the
Company's  Common  Stock in an  amount  equal  to 70% of the  number  of  shares
purchased in the private placement.  Accordingly, the Company issued warrants to
purchase an aggregate of 2,604,000  shares of its Common Stock to the  investors
and  warrants to  purchase  an  additional  148,800  shares of its Common  Stock
pursuant to placement agency agreements. The warrants are exercisable at a price
of $0.50  per share  for a period  of five  years  from the July 9, 2004 date of
issuance.

The securities  purchase agreements for the July 2004 PIPE provide the investors
with participation rights on the same terms and conditions as other investors in
any subsequent  financing  transactions the Company may complete within one year
of the closing of this  placement.  The shares issued  pursuant to the July 2004
PIPE and the related  warrants also contain  anti-dilution  provisions that will
require the Company to issue  additional  shares of its common stock to the PIPE
investors and modify their outstanding warrants if the Company raises additional
equity  financing  at a price  below $0.40 per share in the year  following  the
closing of the PIPE  transaction,  except  under the  provisions  of  previously
outstanding  convertible  debt,  option or warrant  agreements.  The Company has
granted registration rights and is required to register the shares issued in the
July 2004 PIPE and the shares  underlying the related warrants in a registration
statement on Form SB-2 no later than July 23, 2004.

Operating Lease

The  Company's  lease of its  office  and  manufacturing  facility  in  Alameda,
Californa  expired on June 30, 2004. The Company has initated the  consolidation
of its domestic manufacturing operations at its Rockville facility and completed
the physical relocation of its Alameda operations prior to the expiration of the
Alameda  lease.  On May 7,  2004,  the  Company  signed a three  year lease that
commenced on June 18, 2004 for  approximately  4,400 square feet of office space
in Pleasanton,  California that now houses its corporate headquarters.  The base
rent for the Pleasanton office space will be approximately  $7,750 per month for
the term of the lease.

Informal Inquiry by SEC

By letter dated July 14,  2004,  the SEC  Division of  Enforcement  notified the
Company that the matter has been  terminated and that no enforcement  action has
been recommended by the Commission at this time.


                                      F-50