BARATTA & GOLDSTEIN
                                ATTORNEYS AT LAW
                                597 FIFTH AVENUE
                              NEW YORK, N.Y. 10017

                                     -------

JOSEPH P. BARATTA                (212) 750-9700       FACSIMILE: (212) 750-8297
HOWARD J. GOLDSTEIN                                           INFO@BARAGOLD.COM
LOUIS R. AIDALA                                                      OF COUNSEL
JOAN PALERMO                                                MARGARET M. STANTON
JOSEPH A. BARATTA*                                               LINDA MARYANOV
                                                           SAMUEL M. GREENFIELD
* Admitted in NY and NJ

                                         December 20, 2004
Via EDGAR and Facsimile

David Ritenour, Special Counsel
Mary Beth Breslin, Division of Corporate Finance
Securities and Exchange Commission

450 Fifth Street, NW
Washington, D.C. 20549-0306

           Re:       Calypte Biomedical Corporation
                     Registration Statement on Form SB-2
                     Filed October 8, 2004
                     File No. 333-119646

Dear Mr. Ritenour and Ms. Breslin:

On behalf of Calypte  Biomedical  Corporation  ("Calypte" or the "Company"),  we
enclose supplemental responses that correspond directly to the numbered comments
in the  Commission's  letter of December  17,  2004.  Additional  commentary  is
provided where appropriate to direct the Commission's  attention to supplemental
responses and/or revisions with respect to the  Registration  Statement.  Please
note that the Company has filed an amended registration statement on Form SB-2/A
(No.1) which  includes  amendments  in accord with the  supplemental  responses,
updated financial  statements and other disclosures to reflect financial results
through  the  quarter  ended  September  30,  2004 as well  as  recent  material
subsequent events.

Additionally,  we have  manually  marked a "hard  copy" of the  sections  of the
Registration  Statement  relevant to the supplemental  responses which have been
faxed to your attention.

Fee Table

      1.    Please supplementally  demonstrate that Ani Biotech Oy was at market
            risk at the time of filing of the resale registration statement with
            respect to all shares  that may be issued  pursuant  to the  license
            agreement filed as Exhibit 10.1 to your Form 8-K dated September 30,
            2004. In this regard,  we note Section 1.3 of the  agreement,  which
            indicates  that any  transfer  of shares to Ani  Biotech Oy is to be
            calculated  using the 5-day average closing stock price  immediately
            before the date of the transfer. For guidance,  please refer to Part
            (b) of  Item  3S of the  March  1999  supplement  to our   Manual of
            Publicly Available Telephone Interpretations,  which is available on
            our website at www.sec.gov.




      Response

      The Company has amended the Registration Statement to include only the
      shares of common stock that have been issued to Ani Biotech Oy ("Ani") as
      of September 30, 2004 that are at market risk. The fee table has been
      revised to reflect 1,172,205 shares included in resale registration
      representing (i) the initial license fee payment of 300,000 Euros pursuant
      to Section 3.1.1 of the License Agreement and Technology Transfer
      Agreement (the "Agreement") and (ii) the initial payment of 77,613 Euros
      for the manufacturing equipment pursuant to Section 5.3.1 of the
      Agreement. We further advise that the relevant note to the fee table has
      been amended to reflect the 1,172,205 shares as previously issued to Ani
      and the deletion of reference to "an indeterminate number of shares being
      included in the Registration Statement", except as relates to potential
      future issuances under Rule 416(b) of the Securities Exchange Act of 1933,
      as amended.

      2.    Please  supplementally  explain  how you  determined  the  number of
            shares which are being registered for resale.

      Response

      As stated in the supplemental  response above, the Company has amended the
      Registration Statement so as to include only the shares of common stock as
      issued to Ani that are at market risk.

      The 1,172,205 shares included in  pre-effective  amendment number 1 to the
      Registration Statement were determined as follows:

           Payments due for License Fee                           300,000 Euros
           Payments due for manufacturing equipment                77,613 Euros
                                                             ------------
                                                                  377,613 Euros

           Conversion rate at 30 September 2003 per

                Federal Reserve Bank of New York                   1.2417
                                                             ------------

           U.S. dollar equivalent                            $ 468,882.06
                     Divided by
           Threshold price per share                         $       0.40
                                                             ------------

           Shares of common stock being registered              1,172,205
                                                             ============

Should you have any  further  questions  or  comments  regarding  the  foregoing
responses or amendments  to the  Registration  Statement,  please direct same in
care of the  undersigned.  Your  courtesies  and  attention  with respect to the
foregoing  are  appreciated  as the  Company  desires  to submit a  request  for
acceleration upon satisfying the foregoing

                                                Very truly yours,
                                                BARATTA & GOLDSTEIN


                                                JOSEPH A. BARATTA