[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

                                                                    EXHIBIT 99.1



SECTION A -                                                                                                   CMB Approval 2700-0042
- ------------------------------------------------------------------------------------------------------------------------------------
            AWARD/CONTRACT            |  1. THIS CONTRACT IS RATED ORDER    >         |   RATING              |   PAGE  OF  PAGES
                                      |     UNDER DPAS (15 CFR 350)                   |                       |
                                      |                                               |   N/A                 |    1         32
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
2. CONTRACT (Proc. Inst. Ident.) NO.  |  3. EFFECTIVE DATE                  |  4. REQUISITION/PURCHASE REQUEST/PROJECT NO.
                                      |                                     |
      HHSO100200500001C               |     November 4, 2004                |     ASPHEP0500002
- ------------------------------------------------------------------------------------------------------------------------------------
5. ISSUED BY                        CODE  |                  |   6. ADMINISTERED BY (if other than item 6)   CODE  |             |
                                          -------------------|                                                     ---------------
                                                             |
     Department of Health and Human Services                 |
     Office of Research and Development Coordination         |
     Office of Public Health Emergency Preparedness          |
     200 Independence Avenue, S.W., Room 636G                |        RFP DHHS-ORDC-04-01
     Washington, D.C. 20201                                  |
- ------------------------------------------------------------------------------------------------------------------------------------
7. NAME AND ADDRESS OF CONTRACTOR (No. street, county, state and ZIP Code)            | 8. DELIVERY
                                                                                      |    |_| FOB ORIGIN     |X| OTHER (See below)
                                                                                      |
   VaxGen, Inc.                                                                       |                       FOB Destination
   1000 Marina Boulevard, Suite 200                                                   | --------------------------------------------
   Brisbane, California 94005                                                         | 9. DISCOUNT FOR PROMPT PAYMENT
                                                                                      |
                                                                                      |    N/A
                                                                                      | --------------------------------------------
                                                                                      | 10. SUBMIT INVOICES    | ITEM
- ---------------------------------------------------------------------------------------                        |
CODE                                        | FACILITY CODE                           |      ADDRESS SHOWN IN: | Art. G.5.
- ------------------------------------------------------------------------------------------------------------------------------------
11.  SHIP TO/MARK FOR                  CODE | N/A                |  12. PAYMENT WILL BE MADE BY         CODE  | N/A
- -------------------------------------        ------------------- |                                            ----------------------
                                                                 |
     Article F.1.                                                |       See Article G.5
- ------------------------------------------------------------------------------------------------------------------------------------
13. AUTHORITY FOR USING OTHER FULL AND OPEN COMPETITION:         |  14. ACCOUNTING AND APPROPRIATION DATA
                                                                 |
    |_| 10 U.S.C. 2304(c)( )   |_| 41 U.S.C. 253(c)( )           |        EIN 1-943236309-AI    CAN 1991535 7550140 25.2A
- ------------------------------------------------------------------------------------------------------------------------------------
    15A. ITEM NO.      |        15B. SUPPLIES/SERVICES           |        15C.    |   15D. UNIT  |  15E. UNIT PRICE  | 15F. PRICE
- ------------------------------------------------------------------------------------------------------------------------------------
Title: Acquisition of rPA Anthrax Vaccine for the Strategic      |
National Stockpile Period: November 4, 2004 - November 3, 2009   |
Contract Type: IDIQ (Fixed Price Delivery Order and Cost         |  FY 2005 $877,500,000 for 75 Million doses of rPA Anthrax Vaccine
Reimbursement Task Orders)                                       |
- ------------------------------------------------------------------------------------------------------------------------------------
15G. TOTAL AMOUNT OF CONTRACT                                                             >     |   $877,500,000
- ------------------------------------------------------------------------------------------------------------------------------------
                                                        16. TABLE OF CONTENTS
- ------------------------------------------------------------------------------------------------------------------------------------
(v)   |   SEC. |           DESCRIPTION               | PAGE(S)   | (v)  |   SEC. |           DESCRIPTION               |   PAGE(S)
- ------------------------------------------------------------------------------------------------------------------------------------
                       PART I - THE SCHEDULE                                             PART II - CONTRACT CLAUSES
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     A      SOLICITATION/CONTRACT FORM                           |X|      I    CONTRACT CLAUSES
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     B      SUPPLIES OR SERVICES AND PRICE/COST                      PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACH.
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     C      DESCRIPTION/SPECS./WORK STATEMENT                    |X|      J    LIST OF ATTACHMENTS
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     D      PACKAGING AND MARKING                                          PART IV - REPRESENTATIONS AND INSTRUCTIONS
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     E      INSPECTION AND ACCEPTANCE                            |X|      K    REPRESENTATIONS, CERTIFICATIONS AND
                                                                                    OTHER STATEMENTS OF OFFERORS
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     F      DELIVERIES OR PERFORMANCE
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     G      CONTRACT ADMINISTRATION DATA                         |_|      L    INSTRS., CONDS., AND NOTICES TO OFFERORS
- ------------------------------------------------------------------------------------------------------------------------------------
  |X|     H      SPECIAL CONTRACT REQUIREMENTS                        |_|      M    EVALUATION FACTORS FOR AWARD
- ------------------------------------------------------------------------------------------------------------------------------------
                                    CONTRACTING OFFICER WILL COMPLETE ITEM 17 OR 18 AS APPLICABLE
- ------------------------------------------------------------------------------------------------------------------------------------
17. |X| CONTRACTOR'S NEGOTIATED AGREEMENT (Contractor is              18. |_| AWARD (Contractor is not required to sign this
required to sign this document and return 3 copies to                 document.) Your offer on Solicitation Number _________________
issuing office.) Contractor agrees to furnish and deliver             _________, including the additions or changes made by you
all items or perform all the services set forth or otherwise          which additions or changes are set forth in full above, is
identified above and on any continuation sheets for the               hereby accepted as to the items listed above and on any
consideration stated herein. The rights and obligations of            continuation sheets. This award consummates the contract
the parties to this contract shall be subject to and                  which consists of the following documents: (a) the
governed by the following documents: (a) this                         Government's solicitation and your offer, and (b) this
award/contract, (b) the solicitation, if any, and (c) such            award/contract. No further contractual document is
provisions, representations, certifications, and                      necessary.
specifications, as are attached or incorporated by reference
herein. (Attachments are listed herein.)
- ------------------------------------------------------------------------------------------------------------------------------------
19A. NAME AND TITLE OF SIGNER (Type or print)                         20A. NAME OF CONTRACTING OFFICER

     Lance K. Gordon                                                      Jacqueline C. Holden, Contracting Officer
     President and CEO                                                    HHS/OS/ORDC
- ------------------------------------------------------------------------------------------------------------------------------------
19B. NAME OF CONTRACTOR                         19C.  DATE SIGNED     20B.  UNITED STATES OF AMERICA           20C.  DATE SIGNED

                                                11/4/04                                                        11/4/04
/s/ Lance Gordon                                                      /s/ Jacqueline C. Holden
- -------------------------------------------                           ---------------------------------------
   (Signature of person authorized to sign)                               (Signature of Contracting officer)
- ------------------------------------------------------------------------------------------------------------------------------------
NSN 7540-01-152-8069                                             26-107                     STANDARD FORM 26 (REV. 4-85)
PREVIOUS EDITION UNUSABLE                                  Computer Generated               Prescribed by GSA
                                                                                            FAR (48 CFR) 53.214(a)




                                               1. Contract No. HHSO100200500001C

                       DETAILED TABLE OF CONTRACT CONTENTS


                                                                                                           
PART I - THE SCHEDULE

    SECTION A -................................................................................................1

    SECTION B - SUPPLIES OR SERVICES AND PRICES/COSTS..........................................................4

          ARTICLE B.1. BRIEF DESCRIPTION OF SUPPLIES OR SERVICES...............................................4
          ARTICLE B.2. PRICES..................................................................................4
          ARTICLE B.3. PROVISIONS APPLICABLE TO DIRECT COSTS...................................................5
          ARTICLE B.4. ADVANCE UNDERSTANDINGS..................................................................6

    SECTION C - DESCRIPTION/SPECIFICATIONS/WORK STATEMENT......................................................8

          ARTICLE C.1. STATEMENT OF WORK.......................................................................8
          ARTICLE C.2. REPORTING REQUIREMENTS..................................................................9
          ARTICLE C.3. INVENTION REPORTING REQUIREMENT........................................................10

    SECTION D - PACKAGING, MARKING AND SHIPPING...............................................................10

    SECTION E - INSPECTION AND ACCEPTANCE.....................................................................10

    SECTION F - DELIVERIES OR PERFORMANCE

          ARTICLE F.1. DELIVERIES.............................................................................11
          ARTICLE F.2. CLAUSES INCORPORATED BY REFERENCE, FAR 52.252-2 (FEBRUARY 1998)........................12

    SECTION G - CONTRACT ADMINISTRATION DATA..................................................................12

          ARTICLE G.1. PROJECT OFFICER........................................................................12
          ARTICLE G.2. KEY PERSONNEL..........................................................................13
          ARTICLE G.3. TASK ORDER PROCEDURES..................................................................13
          ARTICLE G.4. INDEFINITE DELIVERY CONTRACT PAYMENT METHOD............................................14
          ARTICLE G.5. INVOICE SUBMISSION.....................................................................14
          ARTICLE G.6. INDIRECT COST RATES....................................................................15
          ARTICLE G.7. GOVERNMENT PROPERTY....................................................................15
          ARTICLE G.8. POST AWARD EVALUATION OF CONTRACTOR PERFORMANCE........................................15
          ARTICLE G.9. PAYMENT CONDITIONED ON DELIVERY........................................................16

    SECTION H - SPECIAL CONTRACT REQUIREMENTS.................................................................16

          ARTICLE H.1. REIMBURSEMENT OF COSTS FOR INDEPENDENT RESEARCH AND DEVELOP............................16
          ARTICLE H.2. RESTRICTION FROM USE OF HUMAN SUBJECTS.................................................16
          ARTICLE H.3. NEEDLE EXCHANGE........................................................................16
          ARTICLE H.4. PRIVACY ACT............................................................................16
          ARTICLE H.5. ANIMAL WELFARE.........................................................................17
          ARTICLE H.6. RESTRICTION FROM USE OF LIVE VERTEBRATE ANIMALS........................................17
          ARTICLE H.7. PUBLICATION AND PUBLICITY..............................................................17
          ARTICLE H.8. PRESS RELEASES.........................................................................17
          ARTICLE H.9. TASK ORDERDELIVERY ORDER CONTRACT OMBUDSMAN............................................17
          ARTICLE H.10. REPORTING MATTERS INVOLVING FRAUD, WASTE AND ABUSE....................................18
          ARTICLE H.11. ANTI -LOBBYING........................................................................18
          ARTICLE H.12. POSSESSION USE AND TRANSFER OF SELECT BIOLOGICAL AGENTS OR TOXINS.....................18
          ARTICLE H.13. PROHIBITION ON CONTRACTOR INVOLVEMENT WITH TERRORIST ACTIVITIES.......................19



                                       2.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                                                                                                          
    SECTION I -...............................................................................................19

          ARTICLE I.1. GENERAL CLAUSES FOR A NEGOTIATED FIXED PRICE SUPPLY CONTRACT...........................20
          ARTICLE I.1. GENERAL CLAUSES FOR A NEGOTIATED FIXED PRICE SUPPLY CONTRACT...........................22
          ARTICLE I.2. AUTHORIZED SUBSTITUTION OF CLAUSES.....................................................26
          ARTICLE I.3. ADDITIONAL CONTRACT CLAUSES............................................................26
          ARTICLE I.4. ADDITIONAL FAR CONTRACT CLAUSES INCLUDED IN FULL TEXT..................................27

PART III......................................................................................................29

    SECTION J - LIST OF ATTACHMENTS...........................................................................29

1. Statement of Work
2. Invoice Instructions for Fixed-Price Contracts
3. Inclusion Enrollment Report
4. Privacy Act System of Records
5. Safety and Health
6. Research Patient Care Costs

PART IV.......................................................................................................30

       SECTION K - REPRESENTATIONS AND CERTIFICATIONS.........................................................30

          1. Representations and Certifications...............................................................30
          2. Human Subjects Assurance Identification Number...................................................30
          3. Animal Welfare Assurance Number..................................................................30



                                       3.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.



                                                  Contract No. HHSO100200500001C

SECTION B - SUPPLIES OR SERVICES AND PRICES/COSTS

ARTICLE B.1. BRIEF DESCRIPTION OF SUPPLIES OR SERVICES

The purpose of this contract is for the Acquisition of rPA Anthrax Vaccine for
the Strategic National Stockpile.

ARTICLE B.2. PRICES

a.    The contractor shall be reimbursed by the Government in an amount not more
      than a total of $877,500,000 for 75 Million doses of rPA Anthrax Vaccine
      (maximum) for successful performance of this contract (Requirements 1, 2,
      3, 4a), b), c) and d), 5, 6, 7 and 10). Exclusive of this amount are the
      following items for which future task orders may be issued:

      Task Order Requirement 4(e) - Phase 4 Post-Marketing Studies - $28,014,355
      ($5,503,096 for set-up costs within 6 months of award)
      Task Order Requirement 8 - Maintaining a Warm Base - $29,431,920
      Task Order Requirement 9 - Clinical Trails in Special Populations -
      $11,514,308
      Security Recommendations not to exceed [ * ]
      Anticipated PPI in Year 3 of the contract not to exceed [ * ]

                             FUNDED CONTRACT AMOUNTS



             Description of item to be ordered                              Total Funded Amount
             ---------------------------------                              -------------------
                                                                            
       75 Million Doses of rPA Anthrax Vaccine                                 $877,500,000


b.    The prices set forth in this ARTICLE B.2. will cover the contract period
      October 29, 2004 through October 28, 2009

c.    Upon delivery and acceptance of the items described in SECTION C of this
      contract and identified in the schedule of charges below, the Government
      shall pay to the contractor the unit prices set forth below:



           Description of item to be ordered       Unit Price    % of Total Fixed Price to be paid        Total Cost
           ---------------------------------       ----------    ---------------------------------        ----------
                                                                                              
       75 Million Doses of rPA Anthrax Vaccine       $10.06                   85.98%                   $754,500,000.00
          Upon Delivery to the SNS
       GUP BLA Supplement                              0.35                    2.99%                   $ 26,250,000.00
       PEP BLA Supplement                              0.35                    2.99%                   $ 26,250,000.00
       18 month Real Time Stability                    0.94                    8.03%                   $ 70,500,000.00
                                                     ------                    ----                    ---------------
       Total                                         $11.70                     100%                   $877,500,000.00

d.    Payment Schedule

      The Contractor will submit invoices for finished rPA vaccine furnished in
accordance with the following:

      i.    Invoices for the Base Amount of $10.06 per dose will be submitted
            monthly upon collection of the relevant lots of usable product from
            the manufacturer's facility. A lot is defined as approximately [ * ]
            doses of rPA vaccine in pre-filled syringes. Should the Government
            choose to delay or defer shipment of released FDP to the SNS
            site(s), the Government agrees to accept the vaccine while in the
            Contractor's possession and make timely payment of the FDP invoice.

      ii.   A price supplement of $0.35 per dose will be applied when the BLA
            approval for General Use Prophylaxis (GUP) is achieved. Once
            achieved, Contractor will submit an invoice to retroactively apply
            the price supplement to doses already delivered under IND. Invoices
            for future deliveries will include the base price plus the price
            supplement.


                                       4.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      iii.  A price supplement of $0.35 per dose will be applied when the BLA
            approval for Post Exposure Prophylaxis (PEP) is achieved. Once
            achieved, Contractor will submit an invoice to retroactively apply
            the price supplement to doses already delivered under IND. Invoices
            for future deliveries will include the base price plus the price
            supplement.

      iv.   A price supplement of $0.94 per dose will be applied when the
            milestone of demonstrating 18 month real time stability in prefilled
            syringes is achieved. Once achieved, Contractor will submit an
            invoice to retroactively apply the price supplement to doses already
            delivered under IND. Invoices for future deliveries will include the
            base price plus the price supplement.

2.    Delivery Order No. 1 is hereby incorporated in this contract as follows:

      1)    Date of Order - November 4, 2004

      2)    Contract No. HHSO100200500001C

      3)    Description - 75 Million doses of rPA Anthrax Vaccine

      4)    Delivery Schedule - as set forth in Article F.1.

      5)    Place of Delivery - as set forth in Article F.1.

      6)    Packing - as set forth in Section D

      7)    Accounting & Appropriation Data - see Block 14 of Contract Face Page

      8)    Method of Payment - See Article B.2.d.

ARTICLE B.3. PROVISIONS APPLICABLE TO DIRECT COSTS

(These provisions apply only to the Cost Plus Fixed Fee components of this
contract; i.e., Requirements 4(e), 8 and 9)

a.    Items Unallowable Unless Otherwise Provided

      Notwithstanding the clauses, ALLOWABLE COST AND PAYMENT, and FIXED FEE,
      incorporated in this contract, unless authorized in writing by the
      Contracting Officer, the costs of the following items or activities shall
      be unallowable as direct costs:

      (1)   Acquisition, by purchase or lease, of any interest in real property;

      (2)   Special rearrangement or alteration of facilities;

      (3)   Purchase or lease of any item of general purpose office furniture or
            office equipment regardless of dollar value. (General purpose
            equipment is defined as any items of personal property which are
            usable for purposes other than research, such as office equipment
            and furnishings, pocket calculators, etc.);

      (4)   Travel to attend general scientific meetings;

      (5)   Foreign travel;

      (6)   Consultant costs;

      (7)   Subcontracts;

      (8)   Patient care costs;

      (9)   Accountable Government property (defined as both real and personal
            property with an acquisition cost of $1,000 or more and a life
            expectancy of more than two years) and "sensitive items" (defined
            and listed in the Contractor's Guide for Control of Government
            Property), 1990, regardless of acquisition value.


                                       5.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

b.    Travel Costs

      (1)   Domestic Travel

            (a)   Total expenditures for travel (transportation, lodging,
                  subsistence, and incidental expenses) incurred in direct
                  performance of this contract shall not exceed $8,126 without
                  the prior written approval of the Contracting Officer.

            (b)   The Contractor shall invoice and be reimbursed for all travel
                  costs in accordance with Federal Acquisition Regulations (FAR)
                  31.205-46.

ARTICLE B.4. ADVANCE UNDERSTANDINGS

1.    Storage and Shipment of Final Drug Product

      a.    Contractor will provide adequate Final Drug Product (FDP) storage
            capacity for up to [ * ] including the estimated [ * ] required for
            QC testing and QA release. If testing should take longer than the
            estimated [ * ] to fulfill FDA/CBER requirements, it will be the
            responsibility of VaxGen to cover the additional storage costs.
            Should the Government require FDP storage in excess of [ * ], the
            Government will provide 6 months notice to VaxGen of such a
            requirement, unless mutually agreed to otherwise, and the Government
            will be responsible for all costs associated with such additional
            storage.

      b.    Prior to initial shipment of product to the SNS, the following
            process shall be followed:

            i.    Contractor shall submit a letter summarizing each study that
                  has relevance to defining the product as usable.

            ii.   Usable product must meet specifications as per footnote 2 of
                  the Statement of Work and as per Section 7 of the advanced
                  understandings below.

            iii.  The Project Officer will notify Contractor when transfer of
                  product is acceptable for purposes of this advance
                  understanding.

      c.    Upon Contractor issuance of a FDP Certificate of Analysis, and
            Contractor release of each FDP lot, Contractor will arrange for
            shipment to the Government's SNS site via the Government's selected
            shipping contractor. All shipments will be FOB manufacturer's
            facility.

      d.    For licensed product subject to FDA lot release requirements,
            Contractor will provide Sponsor lot release of product for transport
            to the SNS and will make arrangements for quarantined storage of
            inventory until such time as FDA lot release is provided. Upon FDA
            release, product will then be moved into the general inventory and
            available for immediate deployment. Should any lot having received
            Sponsor lot release and for which payment has been rendered fail to
            receive FDA lot release, Contractor agrees to replace the failed lot
            at no cost to the Government, FOB manufacturer's facility.

2.    Security Requirements and Associated Costs

      a.    The Government may issue separate contract modifications to fund
            improvements that may be needed at Contractor's or subcontractor's
            sites in order to provide levels of security beyond those required
            for routine, commercial pharmaceutical production. VaxGen will
            provide proposals for funding for such improvements and upon receipt
            of a contract modification, will implement security measures in
            accordance with the Government's specifications and schedules.

      b.    It is understood and agreed that documentation will be submitted to
            support vehicular access control to the manufacturing site [ * ] via
            gates operated by card key with closed circuit television (CCTV)
            surveillance. Cost to implement vehicular access will not exceed
            [ * ]


                                       6.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      c.    It is understood and agreed that documentation will be submitted to
            support [ * ] requirements. Cost to support [ * ] will not exceed
            [ * ]

      d.    DHHS or its designee will review and approve all proposed security
            improvements funded by the Government under cost reimbursement
            arrangements prior to implementation.

3.    Economic Price Adjustment - [ * ]

      a.    Manufacture of the fixed price product required includes [ * ] In
            accordance with standard industry practice, [ * ]. The contractor
            certifies that this contract does not include amounts to cover such
            adjustments beyond the [ * ] of contract performance.

      b.    [ * ]

      c.    Promptly after the Contracting Officer receives the notice and data
            referred to in the previous paragraph of this clause, the
            Contracting Officer and the Contractor shall negotiate a price
            adjustment in the contract unit prices and its effective date. The
            Contractor shall continue performance pending agreement on, or
            determination of, an adjustment and its effective date. The
            Contractor shall submit a separate invoice for the adjustment amount
            applicable to doses previously shipped, if any, and the unit price
            will be adjusted to reflect the change applicable to undelivered
            product.

      d.    Any price adjustment under this clause is subject to the following
            limitations:

            i.    Any adjustment shall be limited to [ * ] but not to exceed [ *
                  ]. There shall be no adjustment for supplies or services for
                  which the production cost is not affected.

            ii.   No adjustment shall apply to supplies that are delivered
                  before the effective date of the adjustment.

            iii.  It is understood and agreed that documentation will be
                  submitted to support the anticipated [ * ].

4.    This contract is awarded under solicitation RFP-DHHS-ORDC-04-01. This
      solicitation sought a minimum quantity of rPA anthrax vaccine of 25
      million doses and a maximum quantity of 75 million doses. In its response,
      Contractor offered [ * ] pricing scenarios based on volume. [ * ] This
      volume-based pricing reflects cost efficiencies anticipated for production
      at higher volumes and the need for a lower unit margin at higher volumes
      to provide the required return.

5.    Pursuant to FAR 52.244-2 and 52.244-2 (ALT II), award of the following
      agreements shall not proceed without the prior written approval of the
      Contracting Officer upon review of the draft agreements:

      [ * ]

      Upon written approval of each draft agreement, a copy of the signed,
      approved agreement shall be provided to the Contracting Officer

6.    The following Alternate Proposals proposed by Contractor will not be
      funded under this contract:

      [ * ]

7.    Notwithstanding the definition of usable product set forth at footnote 2
      of the Statement of Work, Contractor understands the definition of usable
      product as originally stated in the RFP and is working towards obtaining
      sufficient data to establish the final formulation for use under a
      contingency-use protocol. For clarity, usable product must be derived from
      a validated manufacturing process, including that of the final
      formulation, in which there is a high degree of confidence, as determined
      by the FDA/CBER, that all manufactured units from successive lots will
      meet acceptable product specifications. A minimum of 3 consistency lots
      (replicate process runs) must be manufactured at commercial scale to
      demonstrate reproducibility and provide an accurate measure of variability
      among successive runs. Sufficient safety (nonclinical and clinical) and
      efficacy data (nonclinical and clinical serology) shall be submitted to
      Contractor's


                                       7.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      IND prior to delivery of vaccine to the SNS to support use of
      investigational vaccine by the US Government under a Post-Exposure
      Contingency Use IND protocol (used concurrently with antibiotics). These
      data will be the basis for FDA/CBER review and concurrence that the
      vaccine meets the definition of usability for Post-Exposure Contingency
      Use. All FDP to be shipped to the SNS will be manufactured using a
      validated process demonstrated by comprehensive and satisfactory
      in-process and release testing. In addition, an ongoing stability program
      will be in place using stability indicating assays that have been agreed
      upon by FDA/CBER. The product must meet stability specifications to the
      satisfaction of FDA/CBER prior to entry into the stockpile. The acceptance
      of the product for inclusion in the SNS for emergency purposes will be
      based upon review of ongoing data and mutual agreement with FDA/CBER,
      ORDC, and CDC, in consultation with Contractor, that the above usability
      criteria have been met.

8.    Contractor has included the cost of the following in its fixed price per
      dose of $11.70:

      a.    Product Liability and Clinical Trial Insurance

      b.    Packaging and ancillaries including safety needles, alcohol swabs,
            package inserts and informed consent forms

      c.    The cost of monitoring vaccine while stored at the SNS storage sites

9.    It is understood and agreed that ORDC may attend meetings between
      Contractor and FDA for "informational purposes only" and ORDC will be
      provided with copies of correspondence and regulatory submissions to FDA.

10.   Indemnification: The contractor is required to obtain clinical trial
      insurance. If the contractor is not able to obtain sufficient insurance
      coverage for activities under the contract, and the contractor desires
      indemnification pursuant to Public Law No. 85-804 from the USG, the
      Contractor shall submit a request to DHHS for indemnification by the USG.
      The Contractor's Request for Indemnification shall provide all information
      and documentation as required by FAR 50.403-l(a) (Indemnification
      Requests). The Contracting Officer may extend the deadline for submission
      of indemnification requests. Except for clinical trials, the USG will
      agree that vaccines delivered to the SNS will not be used until
      indemnification has been approved.

11.   SAFETY Act: As a requirement of indemnification, the contractor is
      required to request liability protection under the terms of the SAFETY
      Act.

12.   Product Approval as Required by Project Bioshield Act of 2004

      Pursuant to Section 42 U.S.C. 247d-6b(c)(7)(C)(ii)(V) of the Public Health
      Service Act, the Statement of Work contains requirements with respect to
      the approval, clearance, or licensing of the product from the Secretary.
      Timetables for the development of data and other information to support
      such approval, clearance, or licensing are included in the contractor's
      proposal (including Section 7 titled "Schedule and Master Gantt Chart" of
      the Final Proposal Revision, dated September 21, 2004) and are
      incorporated into the contract pursuant to Article C.1.a.

13.   For the purposes of this contract, the term General Use Prophylaxis means
      Pre-Exposure Prophylaxis.

SECTION C - DESCRIPTION/SPECIFICATIONS/WORK STATEMENT

ARTICLE C.1. STATEMENT OF WORK

a.    Independently and not as an agent of the Government, the Contractor shall
      furnish all the necessary services, qualified personnel, material,
      equipment, and facilities, not otherwise provided by the Government as
      needed to perform the Statement of Work, SECTION J, ATTACHMENT 1, dated
      November 4, 2004, attached hereto and made a part of this contract. [ * ]
      Substantive deviations, as determined by the Government, if any, from the
      technical plan which could affect the probability of technical or
      programmatic success of this contract will be recommended by the
      contractor but must be approved by the government's Contracting Officer in
      advance of implementation.


                                       8.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

ARTICLE C.2. REPORTING REQUIREMENTS

Technical Reports

In addition to those reports required by the other terms of this contract, the
Contractor shall prepare and submit the following reports in the manner stated
below and in accordance with ARTICLE F.1. DELIVERIES of this contract:

The Contractor(s) shall submit to the Contracting Officer and to the Project
Officer technical progress reports covering the work accomplished during each
reporting period. These reports are subject to the technical inspection and
requests for clarification by the Project Officer. These shall be brief and
factual and prepared in accordance with the following format:

      (1) Monthly Technical Progress Reports: On the fifteenth of each month for
      the previous calendar month, the Contractor shall submit a Monthly
      Technical Progress Report to the Project Officer and the Contracting
      Officer. A monthly report will not be required for the period when the
      final report is due. The Contractor shall submit one copy of the Monthly
      Progress Report electronically via e-mail. Any attachments to the e-mail
      report shall be submitted in Microsoft Word or WordPerfect 9 or compatible
      version. Such reports shall include the following specific information:

      a.    The contract number and title, the period of performance being
            reported, the contractor's name and address, the author(s), and the
            date of submission;

      b.    Section I - An introduction covering the purpose and scope of the
            contract effort;

      c.    Section II - The report shall detail, document, and summarize the
            results of work done during the period covered. This shall include
            the information listed below that is applicable for the performance
            period during the month being reported. Also to be included is a
            summary of work planned for the next reporting period.

            1.    Assessment of problems and recommendations related to scale up
                  to full production capacity, including raw material
                  procurement status;

            2.    Quality control testing and purity;

            3.    FDA inspections and consultation results or recommendations;

            4.    Storage and stability studies for expiration date results
                  (real time and accelerated);

            5.    Security assessment, problems and recommendations;

            6.    Clinical trial study progress, results and final reports;

            7.    Progress and completed reports of effectiveness studies
                  performed in animals that were designed with consultation from
                  the USG and FDA/CBER.

            8.    Quality control potency assessment;

            9.    Inventory report of total number of vaccine syringes in
                  storage during the month, to include: lot number, expiration
                  date, and bulk quantity (if applicable);

            10.   Quantity of out-of-date vaccines, assessment and
                  recommendations to replacement vaccine orders to maintain
                  required stockpile quantities;

            11.   Physical storage facility and stability assessments, problems
                  encountered and recommended solutions, etc.;

            12.   Overall project assessment, problems encountered and
                  recommended solutions, etc.


                                       9.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      c.    Section III - An explanation of any difference between planned
            progress and actual progress, why the differences have occurred,
            and, if behind planned progress, what corrective steps are planned.
            The project plan and schedule, with accompanying Gantt chart, will
            be updated in each Monthly Report and compared to the locked project
            baseline. The updated Microsoft Project computer file must also be
            provided to the Project Officer.

      (2) Final Report - By the expiration date of the contract, the Contractor
      shall submit a comprehensive Final Report that shall detail, document, and
      summarize the results of the entire contract work. The report shall
      explain comprehensively the results achieved.

ARTICLE C.3. INVENTION REPORTING REQUIREMENT

All reports and documentation required by FAR Clause 52.227-11 including, but
not limited to, the invention disclosure report, the confirmatory license, and
the government support certification, shall be directed to the Contracting
Officer. In addition, one copy of an annual utilization report, and a copy of
the final invention statement, shall be submitted to the Contracting Officer.
The final invention statement (see FAR 27.303(a)(2)(ii)) shall be submitted to
the Contracting Officer on the expiration date of the contract at the following
address:

                  Contracting Officer
                  ORDC, OPHEP, DHHS
                  200 Independence Avenue, S.W.
                  Room 636G
                  Washington, D.C. 20201

If no invention is disclosed or no activity has occurred on a previously
disclosed invention during the applicable reporting period, a negative report
shall be submitted to the Contracting Officer at the address listed above.

SECTION D - PACKAGING, MARKING AND SHIPPING

All deliverables required under this contract shall be packaged, marked and
shipped in accordance with [ * ]. At a minimum, all deliverables shall be marked
with the contract number and contractor name. The Contractor shall guarantee
that all required materials shall be delivered in immediate usable and
acceptable condition. In accordance with Section B.4.1.d.

SECTION E - INSPECTION AND ACCEPTANCE

a.    The Contracting Officer or the duly authorized representative will perform
      inspection and acceptance of materials and services to be provided.

b.    For the purpose of this ARTICLE, the Project Officer is the authorized
      representative of the Contracting Officer.

c.    Initial Inspection and acceptance will be performed by USG personnel at
      the time of transfer of product in accordance with the SNS Transportation
      Protocol. Further inspection will occur at the time of placement of
      product into SNS storage.

d.    This contract incorporates the following clauses by reference, with the
      same force and effect as if it were given in full text. Upon request, the
      Contracting Officer will make its full text available.

      FAR Clause 52.246-2, INSPECTION OF SUPPLIES - FIXED PRICE (AUGUST 1996)

      FAR Clause 52.246-5, INSPECTION OF SERVICES - COST REIMBURSEMENT (APRIL
      1984)

      FAR Clause No. 52.246-16, RESPONSIBILITY FOR SUPPLIES (APRIL 1984).


                                      10.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

e.    Acceptance of usable product into the stockpile shall not be deemed as
      satisfying the requirements for: 1) licensure for PEP and GUP indications
      or 2) 18-month FDP stability milestone.

SECTION F - DELIVERIES OR PERFORMANCE

ARTICLE F.1. DELIVERIES

Satisfactory performance of the final contract shall be deemed to occur upon
performance of the work described in Article C.1. and upon delivery and
acceptance by the Contracting Officer, or the duly authorized representative, of
the following items in accordance with the stated delivery schedule:

a.    The items specified below as described in SECTION C, ARTICLE C.1. will be
      required to be delivered F.O.B. Destination as set forth in FAR 52.247-35,
      F.O.B. DESTINATION, WITHIN CONSIGNEES PREMISES (APRIL 1984), and in
      accordance with and by the dates specified below and any specifications
      stated in SECTION D, PACKAGING, MARKING AND SHIPPING, of the contract:



      Item     Description                            Delivery Schedule
      ----     -----------                            -----------------
                                                
      (1)      Monthly Technical Progress Report      Fifteenth of each month for
                                                      previous month

      (2)      Final Report                           On or before contract expiration
                                                      date


In addition, the following items shall be delivered:

      (a).  75 million single-dose units of rPA anthrax vaccine packaged in
            pre-filled syringes with safety needles to be delivered to the SNS
            accompanied by sufficient safety (clinical and nonclinical) and
            efficacy (nonclinical) data to support use under a "Post- Exposure
            Contingency Use" IND protocol (concurrently with antibiotics) with
            25 million doses to be delivered within 2 years of contract award
            date, delivery of 50 million doses by May, 2007, and 75 million
            doses by December, 2007.

      (b).  An FDA approval letter for the BLA and accompanying issuance of a
            license for rPA anthrax vaccine for the clinical indication of
            pre-exposure prophylaxis use for those doses of vaccine in the SNS.

      (c).  An FDA approval letter for the BLA supplement for rPA anthrax
            vaccine for the clinical indication of post-exposure prophylaxis use
            concurrently with antibiotics.

      (d).  Evidence, including a summary of salient results, of an ongoing
            Quality Control/Quality Assurance Program for the monitoring of SNS
            stored product and ongoing stability testing of the retained lots of
            product in SNS over the life of the contract or the expiration date
            of the vaccine, or until vaccine is used, whichever comes first.

      (e).  Submission of final study reports as evidence of completion for
            special population trials, including pediatric and geriatric
            populations.

      (f).  One (1) lot of Bulk Drug Substance per year to maintain cGMP
            capacity (warm base) for the production of rPA anthrax vaccine for
            the life of the contract.

b.    The above items shall be addressed and delivered to:


                                      11.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C



          Addressee                                     Deliverable Item No.             Quantity
          ---------                                     --------------------             --------
                                                                                      
          Project Officer                               (1) and (2) and                     (3)
          ORDC, OPHEP, DHHS                             (a) - (f) set forth above
          6610 Rockledge Drive
          Room 5107, MSC 6604
          Bethesda, Maryland 20892-6604

          Contracting Officer                           (1) and (2)                         (1)
          ORDC, OPHEP, DHHS
          200 Independence Avenue, S.W.
          Room 636G
          Washington, D.C.  20201


ARTICLE F.2. CLAUSES INCORPORATED BY REFERENCE, FAR 52.252-2 (FEBRUARY 1998)

This contract incorporates the following clause by reference, with the same
force and effect as if it were given in full text. Upon request, the Contracting
Officer will make its full text available. Also, the full text of a clause may
be accessed electronically at this address: http://www.arnet.gov/far/.

FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1) CLAUSE:

      52.242-15, Stop Work Order (AUGUST 1989) and FAR 52.242-15 ALTERNATE I
      (APRIL 1984)

      52.242- 17, Government Delay of Work (APRIL 1984)

SECTION G - CONTRACT ADMINISTRATION DATA

ARTICLE G.1. PROJECT OFFICER

The following Project Officer will represent the Government for the purpose of
this contract:

            [ * ]
            Senior Project Officer/Microbiologist
            ORDC, OPHEP, DHHS
            6610 Rockledge Drive
            Room 5107, MSC 6604
            Bethesda, Maryland 20892-6604

The Project Officer is responsible for: (1) monitoring the Contractor's
technical progress, including the surveillance and assessment of performance and
recommending to the Contracting Officer changes in requirements; (2)
interpreting the Statement of Work and any other technical performance
requirements; (3) performing technical evaluation as required; (4) performing
technical inspections and acceptances required by this contract; and (5)
assisting in the resolution of technical problems encountered during
performance.

The Contracting Officer is the only person with authority to act as agent of the
Government under this contract. Only the Contracting Officer has authority to:
(1) direct or negotiate any changes in the Statement of Work; (2) modify or
extend the period of performance; (3) change the delivery schedule; (4)
authorize reimbursement to the Contractor any costs incurred during the
performance of this contract; or ( 5 ) otherwise change any terms and conditions
of this contract.

The Contracting Officer hereby delegates the Project Officer as the Contracting
Officer's authorized representative responsible for signing software license
agreements issued as a result of this contract.

The Government may unilaterally change its Project Officer designation.


                                      12.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

ARTICLE G.2. KEY PERSONNEL

Pursuant to the Key Personnel clause incorporated in Section I of this contract,
the following individual is considered to be essential to the work being
performed hereunder:

                          Name                  Title
                          [ * ]                 [ * ]

ARTICLE G.3.  TASK ORDER PROCEDURES

This Article does not apply to the Task Order issued under Article B.2.e.

In providing items under the contract, the following procedures/shall apply to
the award of the D/TOR. All work required under the contract shall be authorized
through the execution of a bilateral order. Each order will obligate the
necessary funds to complete the required order and will include the work
statement of the D/TOR as an attachment. An order may be issued at any time
within the contract period. A D/TOR shall, at a minimum, include a Statement of
Work, evaluation factors, specific reporting requirements, deliverables and task
schedule, the relevant importance of technical and cost factors, and any special
instructions.

Within the time allowed for proposal preparation Contractors shall submit their
proposal in response to D/TOR, which shall include, but not necessarily be
limited to the following information:

      i.    A statement of the contractor's clear understanding of the order
            requirements;

      ii.   A statement of technical and managerial resources and expertise the
            contractor can provide to satisfy the requirement;

      iii.  An approach to perform the work;

      iv.   Resumes with identification of the actual personnel proposed for the
            work;

      v.    A schedule of performance (preferably in MS Project) identifying
            major milestones, deliverables and task data, and activity
            completion; and

      vi.   An itemization of all costs necessary to complete the work. At a
            level deemed practical by the Contractor, proposal budget will be
            linked to associated CWP and schedule activities.

The Government will evaluate proposals and conduct negotiations as necessary.

The Contracting Officer is the only individual authorized to issue a D/TOR or
award a Delivery/Task Order under the contract. Unless specifically authorized
by the Contracting Officer, the contractor shall not commence work on a
requirement until an order has been fully executed. It is anticipated that
orders will be awarded within 30 calendar days from receipt of proposals. Each
order shall, at a minimum, contain the following information:

      o     Date of order

      o     Contract number and delivery/task order numbers sequentially; (e.g.,
            DHHS-ORDC-04-1234, Order No. 01,02, 03, etc).

      o     Description of services, and estimated costs.

      o     Performance period.


                                      13.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      o     Name and address of sponsoring office.

      o     Name of Contracting Officer's technical representative;

      o     Place of performance.

      o     Packaging, packing, and shipping instructions, if any.

      o     Accounting and appropriation data.

      o     Pricing Arrangements

            FAR 16.501-2(c) states that indefinite quantity contracts may
            provide for any appropriate cost or pricing arrangement under Part
            16. Therefore, firm fixed price, cost reimbursement, time and
            materials, and labor-hour arrangements may be used.

      o     Any other pertinent information.

No protest under FAR 16.505(a)(8) Subpart 33.1 is authorized in connection with
the issuance or proposed issuance of a delivery/task order under the contract
except for a protest on the grounds that the order increases the scope, period,
or maximum value of the contract. Orders awarded under the contract are not
subject to the competition requirements of FAR Part 6.

      vii.  The Ombudsman for this delivery/task order contract is [ * ].
            Correspondence from awardees may be forwarded to the address set
            forth in Article H.9. of the contract.

ARTICLE G.4. INDEFINITE DELIVERY CONTRACT PAYMENT METHOD

To initiate and receive prompt payment, the Contractor shall comply with the
following procedure:

a.    A Record of Call Number or Task/Delivery Order Number shall be given to
      you at the time the order is placed. The Contractor is cautioned not to
      accept an order unless one of these numbers is issued.

b.    Invoices shall be submitted to the address indicated in ARTICLE G.5.
      INVOICE INSTRUCTIONS of this contract. Invoices shall cite the Contract
      Number and the Record of Call Number or Task/Delivery Order Number for
      each order for which payment is being requested. See ARTICLE G.5. INVOICE
      INSTRUCTIONS for more information about submission of a proper invoice.

ARTICLE G.5. INVOICE SUBMISSION

a.    Invoice Instruction for Fixed-Price Type Contracts, and for
      Cost-Reimbursement Type Contracts are attached and made part of this
      contract. The invoice instructions and the following directions for the
      submission of invoices must be followed to meet the requirements of a
      "proper" invoice, pursuant to FAR 32.9.

b.    (1)   Invoices shall be submitted as follows:

            (a)   To be considered a "proper" invoice in accordance with FAR
                  32.9, Prompt Payment, each invoice shall clearly identify the
                  contract number that appears on the face page of the contract
                  as follows:

                  Contract No. HHSO100200500001C

            (b)   An original and two copies to the following designated billing
                  office:


                                      14.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                  Contracting Officer
                  ORDC, OPHEP, DHHS
                  200 Independence Avenue, S.W.
                  Room 636G
                  Washington, D.C. 20201

      (2)   Inquiries regarding payment of invoices should be directed to the
            designated billing office, (202) 401-3693.

ARTICLE G.6. INDIRECT COST RATES

In accordance with Federal Acquisition Regulation (FAR) (48 CFR Chapter 1)
Clause 52.216-7(d)(2), Allowable Cost and Payment incorporated by reference in
this contract in Part II, Section I, the cognizant Contracting Officer
representative responsible for negotiating provisional and/or final indirect
cost rates is identified as follows:

                  Director, Division of Financial Advisory Services
                  Office of Acquisition Management and Policy
                  National Institutes of Health
                  6100 Building, Room 6B05
                  6100 EXECUTIVE BLVD MSC-7540
                  BETHESDA, MD 20892-7540

These rates are hereby incorporated without further action of the Contracting
Officer.

ARTICLE G.7. GOVERNMENT PROPERTY

a.    In addition to the requirements of the clause, GOVERNMENT PROPERTY,
      incorporated in SECTION I of this contract, the Contractor shall comply
      with the provisions of DHHS Publication, Contractor's Guide for Control of
      Government Property, 1990, which is incorporated into this contract by
      reference. Among other issues, this publication provides a summary of the
      Contractor's responsibilities regarding purchasing authorizations and
      inventory and reporting requirements under the contract. A copy of this
      publication is available upon request to the Contracts Property
      Administrator.

b.    Notwithstanding the provisions outlined in the DHHS Publication,
      Contractor's Guide for Control of Government Property, 1990 which is
      incorporated in this contract in paragraph a. above, the contractor shall
      use the form entitled, "Report of Government Owned, Contractor Held
      Property" for performing annual inventories required under this contract.
      This form is included as an attachment in SECTION J of this contract.

ARTICLE G.8. POST AWARD EVALUATION OF CONTRACTOR PERFORMANCE

a.    Contractor Performance Evaluations

      Interim and final evaluations of contractor performance will be prepared
      on this contract in accordance with FAR 42.15. The final performance
      evaluation will be prepared at the time of completion of work. In addition
      to the final evaluation, interim evaluations will be prepared annually to
      coincide with the anniversary date of the contract.

      Interim and final evaluations will be provided to the Contractor as soon
      as practicable after completion of the evaluation. The Contractor will be
      permitted thirty days to review the document and to submit additional
      information or a rebutting statement. If agreement cannot be reached
      between the parties, the matter will be referred to an individual one
      level above the Contracting Officer, whose decision will be final.

      Copies of the evaluations, contractor responses, and review comments, if
      any, will be retained as part of the contract file, and may be used to
      support future award decisions.


                                      15.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


ARTICLE G.9. PAYMENT CONDITIONED ON DELIVERY

Pursuant to 3 19F-2(c)(7)(c)(ii)(l) of the Public Health Service Act, no payment
will be made until delivery has been made of a portion, acceptable to the
Secretary, of the total number of units under contract. For purposes of this
contract such portion is agreed to be one lot as defined in Article B.2.d.
Delivery is defined as set forth in Article F.1. and in the applicable clauses.

SECTION H - SPECIAL CONTRACT REQUIREMENTS

ARTICLE H.1. REIMBURSEMENT OF COSTS FOR INDEPENDENT RESEARCH AND DEVELOPMENT
PROJECTS

The primary purpose of the Public Health Service (PHs) is to support and advance
independent research within the scientific community. PHS has established
effective, time tested and well recognized procedures for stimulating and
supporting this independent research by selecting from multitudes of
applications those research projects most worth of support within the
constraints of its appropriations. The reimbursement through the indirect cost
mechanism of independent research and development costs not incidental to
product improvement would circumvent this competitive process.

To ensure that all research and development projects receive similar and equal
consideration, all organizations may compete for direct funding of independent
research and development projects they consider worthy of support by submitting
those projects to the appropriate Public Health Service grant office for review.
Since these projects may be submitted for direct funding, the Contractor agrees
that no costs for any independent research and development project, including
all applicable indirect costs, will be claimed under this contract.

ARTICLE H.2. RESTRICTION FROM USE OF HUMAN SUBJECTS

NOTICE: UNDER GOVERNING REGULATIONS, FEDERAL FUNDS ADMINISTERED BY THE
DEPARTMENT OF HEALTH AND HUMAN SERVICES SHALL NOT BE EXPENDED FOR RESEARCH
INVOLVING HUMAN SUBJECTS, AND INDIVIDUALS SHALL NOT BE ENROLLED IN SUCH
RESEARCH, WITHOUT PRIOR APPROVAL BY THE OFFICE FOR HUMAN RESEARCH PROTECTIONS
(OHRP) OF AN ASSURANCE TO COMPLY WITH THE REQUIREMENTS OF 45 CFR 46 TO PROTECT
HUMAN RESEARCH SUBJECTS. THIS RESTRICTION APPLIES TO ALL COLLABORATING SITES
WITHOUT OHRP-APPROVED ASSURANCES, WHETHER DOMESTIC OR FOREIGN, AND COMPLIANCE
MUST BE ENSURED BY THE AWARDEE.

PRISONERS SHALL NOT BE ENROLLED IN ANY HHS RESEARCH ACTIVITIES UNTIL ALL
REQUIREMENTS OF HHS REGULATIONS AT 45 CFR PART 46, SUBPART C HAVE BEEN MET. IF A
RESEARCH SUBJECT BECOMES A PRISONER DURING THE PERIOD OF THIS CONTRACT, 45 CFR
PART 46, SUBPART C WILL APPLY TO RESEARCH INVOLVING THAT INDIVIDUAL.

ARTICLE H.3. NEEDLE EXCHANGE

a.    Pursuant to Public Law(s) cited in paragraph b., below, contract funds
      shall not be used to carry out any program of distributing sterile needles
      or syringes for the hypodermic injection of any illegal drug.

b.    Public Law and Section No.        Fiscal Year         Period Covered

      P.L.***

      ***(This requirement is pending passage of the applicable Public Law for
      Fiscal Year 2005)

ARTICLE H.4. PRIVACY ACT

This procurement action requires the Contractor to do one or more of the
following: design, develop, or operate a system of records on individuals to
accomplish an agency function in accordance with the Privacy Act of 1974, Public
Law 93-579,


                                      16.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

December 31, 1974 (5 USC 552a) and applicable agency regulations. Violation of
the Act may involve the imposition of criminal penalties.

The Privacy Act System of Records applicable to this project is Number
(Pending). This document will be incorporated into this contract as an
Attachment in a future modification.

NOTE: Clinical Trials cannot be initiated until the Systems Notice has been
published and approval is received from the Contracting Officer.

ARTICLE H.5. ANIMAL WELFARE

All research involving live, vertebrate animals shall be conducted in accordance
with the Public Health Service Policy on Humane Care and Use of Laboratory
Animals. This policy may be accessed at
http://grants1.nih.gov/grants/olaw/references/phspol.htm

ARTICLE H.6. RESTRICTION FROM USE OF LIVE VERTEBRATE ANIMALS

UNDER GOVERNING POLICY, FEDERAL FUNDS ADMINISTERED BY THE PUBLIC HEALTH SERVICE
(PHs) SHALL NOT BE EXPENDED FOR RESEARCH INVOLVING LIVE VERTEBRATE ANIMALS
WITHOUT PRIOR APPROVAL BY THE OFFICE FOR LABORATORY ANIMAL WELFARE (OLAW), OF AN
ASSURANCE TO COMPLY WITH THE PHS POLICY ON HUMANE CARE AND USE OF LABORATORY
ANIMALS. THIS RESTRICTION APPLIES TO ALL PERFORMANCE SITES WITHOUT OLAW-APPROVED
ASSURANCES, WHETHER DOMESTIC OR FOREIGN.

ARTICLE H.7. PUBLICATION AND PUBLICITY

The contractor shall acknowledge the support of the Department of Health and
Human Services whenever publicizing the work under this contract in any media by
including an acknowledgment substantially as follows:

      "This project has been funded in whole or in part with Federal funds from
      the Department of Health and Human Services under Contract No.
      HHSO100200500001C."

ARTICLE H.8. PRESS RELEASES

a.    Pursuant to Public Law(s) cited in paragraph b., below, the contractor
      shall clearly state, when issuing statements, press releases, requests for
      proposals, bid solicitations and other documents describing projects or
      programs funded in whole or in part with Federal money: (1) the percentage
      of the total costs of the program or project which will be financed with
      Federal money; (2) the dollar amount of Federal funds for the project or
      program; and (3) the percentage and dollar amount of the total costs of
      the project or program that will be financed by nongovernmental sources.

b.    Public Law and Section No.        Fiscal Year       Period Covered

      P.L.***

      ***(This requirement is pending passage of the applicable Public Law for
      Fiscal Year 2005)

ARTICLE H.9. TASK ORDER/DELIVERY ORDER CONTRACT OMBUDSMAN

In accordance with FAR 16.505(b)(5), the following individual has been
designated as the DHHS Ombudsman for task order and delivery order contracts:


                                      17.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                  [ * ]
                  HHS Office of Acquisition Management and Policy
                  Room 336-E, Hubert H. Humphrey Building
                  200 Independence Avenue, S.W.
                  Washington, D.C. 20201
                  Telephone: 202-690-8554
                  Fax: 202-690-6902

ARTICLE H.10. REPORTING MATTERS INVOLVING FRAUD, WASTE AND ABUSE

Anyone who becomes aware of the existence or apparent existence of fraud, waste
and abuse in DHHS funded programs is encouraged to report such matters to the
HHS Inspector General's Office in writing or on the Inspector General's Hotline.
The toll free number is 1-800-HHS-TIPS (1-800-447-8477). All telephone calls
will be handled confidentially. The e-mail address is Htips@os.dhhs.gov and the
mailing address is:

                  Office of Inspector General

                  Department of Health and Human Services

                  TIPS HOTLINE

                  P.O. Box 23489

                  Washington, D.C.  20026

ARTICLE H.11. ANTI -LOBBYING

a.    Pursuant to Public Law(s) cited in paragraph c., below, contract funds
      shall only be used for normal and recognized executive-legislative
      relationships. Contract funds shall not be used, for publicity or
      propaganda purposes; or for the preparation, distribution, or use of any
      kit, pamphlet, booklet, publication, radio, television, or video
      presentation designed to support or defeat legislation pending before the
      Congress or any State legislature, except in presentation to the Congress
      or any State legislature itself.

b.    Contract funds shall not be used to pay salary or expenses of the
      contractor or any agent acting for the contractor, related to any activity
      designed to influence legislation or appropriations pending before the
      Congress or any State legislature.

c.    Public Law and Section No.        Fiscal Year        Period Covered

      P.L.***

      ***(This requirement is pending passage of the applicable Public Law for
      Fiscal Year 2005)

ARTICLE H.12. POSSESSION USE AND TRANSFER OF SELECT BIOLOGICAL AGENTS OR TOXINS

Work involving select biological agents or toxins shall not be conducted under
this contract until the contractor and any affected subcontractor(s) are granted
a certificate of registration or are authorized to work with the applicable
agents.

For prime or subcontract awards to domestic institutions who possess, use,
and/or transfer Select Agents under this contract, the institution must complete
registration with the Centers for Disease Control and Prevention (CDC),
Department of Health and Human Services (DHHS) or the Animal and Plant Health
Inspection Services (APHIS), U.S. Department of Agriculture (USDA), as
applicable, before using DHHS funds for research involving Select Agents. No
DHHS funds can be used for research involving Select Agents if the final
registration certificate is denied.


                                      18.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

For prime or subcontract awards to foreign institutions who possess, use, and/or
transfer Select Agents under this contract, the institution must provide
information satisfactory to the DHHS that a process equivalent to that described
in 42 CFR 73 (http://www.cdc.gov/od/sap/docs/42cfr73.pdf) for U.S. institutions
is in place and will be administered on behalf of all Select Agent work
sponsored by these funds before using these funds for any work directly
involving the Select Agents. The contractor must provide information addressing
the following key elements appropriate for the foreign institution: safety,
security, training, procedures for ensuring that only approved/appropriate
individuals have access to the Select Agents, and any applicable laws,
regulations and policies equivalent to 42 CFR 73. An DHHS-chaired committee of
U.S. federal employees (including representatives of DHHS grants/contracts and
scientific program management, CDC, Department of Justice and other federal
intelligence agencies, and Department of State) will assess the policies and
procedures for comparability to the U.S. requirements described in 42 CFR Part
73. When requested by the contracting officer, the contractor should provide key
information delineating any laws, regulations, policies, and procedures
applicable to the foreign institution for the safe and secure possession, use,
and transfer of Select Agents. This includes concise summaries of safety,
security, and training plans, and applicable laws, regulations, and policies.
For the purpose of security risk assessments, the contractor must provide the
names of all individuals at the foreign institution who will have access to the
Select Agents and procedures for ensuring that only approved and appropriate
individuals have access to Select Agents under the contract.

Listings of HHS select agents and toxins, biologic agents and toxins, and
overlap agents or toxins as well as information about the registration process,
can be obtained on the Select Agent Program Web site at
http://www.cdc.gov/od/sap/

ARTICLE H.13. PROHIBITION ON CONTRACTOR INVOLVEMENT WITH TERRORIST ACTIVITIES

The contractor acknowledges that U.S. Executive Orders and Laws, including but
not limited to E.O.13224 and P.L.107-56, prohibit transactions with, and the
provision of resources and support to, individuals and organizations associated
with terrorism. It is the legal responsibility of the contractor to ensure
compliance with these Executive Orders and Laws. This clause must be included in
all subcontracts issued under this contract.


                                      19.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

ARTICLE I.1. GENERAL CLAUSES FOR A NEGOTIATED FIXED PRICE SUPPLY CONTRACT - FAR
52.252- 2, CLAUSES INCORPORATED BY REFERENCE (FEBRUARY 1998)

THESE CLAUSES ARE APPLICABLE TO STATEMENT OF WORK REQUIREMENTS 1,2,3,4a), b), c)
and d), 5, 6, 7 and 10.

This contract incorporates one or more clauses by reference, with the same force
and effect, as if they were given in full text. Upon request, the Contracting
Officer will make their full text available. Also, the full text of a clause may
be accessed electronically at this address: http://www.arnet.gov/far/.

a.    FEDERAL ACQUISITION REGULATION (FAR) (48 CHAPTER 1) CLAUSES



   FAR
CLAUSE NO.            DATE           TITLE
- ----------            ----           -----
                               
52.202-1            Jul 2004         Definitions

52.203-3            Apr 1984         Gratuities (Over $100,000)

52.203-5            Apr 1984         Covenant Against Contingent Fees (Over $100,000)

52.203-6            Jul 1995         Restrictions on Subcontractor Sales to the Government (Over $100,000)

52.203-7            Jul 1995         Anti-Kickback Procedures (Over $100,000)

52.203-8            Jan 1997         Cancellation, Rescission, and Recovery of Funds for Illegal or Improper
                                     Activity (Over $100,000)

52.203-10           Jan 1997         Price or Fee Adjustment for Illegal or Improper Activity (Over $100,000)

52.203-12           Jun 2003         Limitation on Payments to Influence Certain Federal Transactions (Over $100,000)

52.204-4            Aug 2000         Printed or Copied Double-Sided on Recycled Paper (Over $100,000)

52.204-7            Oct 2003         Central Contractor Registration

52.209-6            Jul 1995         Protecting the Government's Interests When Subcontracting With Contractors
                                     Debarred, Suspended, or Proposed for Debarment (Over $25,000)

52.211-5            Aug 2000         Material Requirements

52.215-2            Jun 1999         Audit and Records - Negotiation (Over $100,000)

52.215-8            Oct 1997         Order of Precedence - Uniform Contract Format

52.215-10           Oct 1997         Price Reduction for Defective Cost or Pricing Data

52.215-12           Oct 1997         Subcontractor Cost or Pricing Data (Over $500,000)

52.215-14           Oct 1997         Integrity of Unit Prices (Over $100,000)

52.215-15           Jan 2004         Pension Adjustments and Asset Reversions



                                      20.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                               
52.215-18           Oct 1997         Reversion or Adjustment of Plans for Post-Retirement Benefits (PRB) other than
                                     Pensions

52.215-19           Oct 1997         Notification of Ownership Changes

52.215-21           Oct 1997         Requirements for Cost or Pricing Data or Information Other Than Cost or Pricing
                                     Data - Modifications

52.219-8            May 2004         Utilization of Small Business Concerns (Over $100,000)

52.219-9            Jan 2002         Small Business Subcontracting Plan (Over $500,000)

52.219-16           Jan 1999         Liquidated Damages - Subcontracting Plan (Over $500,000)

52.222-19           Jun 2004         Child Labor--Cooperation with Authorities and Remedies

52.222-20           Dec 1996         Walsh-Healey Public Contracts Act

52.222-26           Apr 2002         Equal Opportunity

52.222-35           Dec 2001         Equal Opportunity for Special Disabled Veterans, Veterans of the Vietnam Era,
                                     and Other Eligible Veterans

52.222-36           Jun 1998         Affirmative Action for Workers with Disabilities

52.222-37           Dec 2001         Employment Reports on Special Disabled Veterans, Veterans of the Vietnam Era,
                                     and Other Eligible Veterans

52.223-6            May 2001         Drug-Free Workplace

52.223-14           Aug 2003         Toxic Chemical Release Reporting (Over $100,000)

52.225-1            Jun 2003         Buy American Act - Supplies

52.225-13           Dec 2003         Restrictions on Certain Foreign Purchases

52.227-1            Jul 1995         Authorization and Consent

52.227-2            Aug 1996         Notice and Assistance Regarding Patent and Copyright Infringement (Over
                                     $100,000)

52.227-3            Apr 1984         Patent Indemnity

52.229-3            Apr 2003         Federal, State and Local Taxes (Over $100,000)

52.232-1            Apr 1984         Payments

52.232-8            Feb 2002         Discounts for Prompt Payment

52.232-9            Apr 1984         Limitation on Withholding of Payments

52.232-11           Apr 1984         Extras



                                      21.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                               
52.232-17           Jun 1996         Interest (Over $100,000)

52.232-23           Jan 1986         Assignment of Claims

52.232-25           Oct 2003         Prompt Payment

52.232-33           Oct 2003         Payment by Electronic Funds Transfer--Central Contractor Registration

52.233-1            Jul 2002         Disputes

52.233-3            Aug 1996         Protest After Award

52.242-13           Jul 1995         Bankruptcy (Over $100,000)

52.243-1            Aug 1987         Changes - Fixed-Price

52.244-2            Aug 1998         Subcontracts *If written consent to subcontract is required, the identified
                                     subcontracts are listed in ARTICLE B, Advance Understandings.

52.245-2            May 2004         Government Property (Fixed-Price Contracts)

52.249-2            Sep 1996         Termination for the Convenience of the Government (Fixed-Price)

52.249-8            Apr 1984         Default (Fixed-Price Supply and Service)(Over $100,000)

52.253-1            Jan 1991         Computer Generated Forms


b.    DEPARTMENT OF HEALTH AND HUMAN SERVICES ACQUISITION REGULATION (HHSAR) (48
      CFR CHAPTER 3) CLAUSES



  HHSAR
CLAUSE NO.           DATE                     TITLE
- ----------           ----                     -----
                               
352.202-1           Jan 2001         Definitions

352.232-9           Apr 1984         Withholding of Contract Payments

352.270-4           Jan 2001         Pricing of Adjustments

352.270-6           Jul 1991         Publications and Publicity

352.270-7           Jan 2001         Paperwork Reduction Act


End of GENERAL CLAUSES FOR A NEGOTIATED FIXED PRICE SUPPLY CONTRACT - Rev.
07/2004.

ARTICLE I.1. GENERAL CLAUSES FOR A COST-REIMBURSEMENT RESEARCH AND DEVELOPMENT
CONTRACT - FAR 52.252- 2, CLAUSES INCORPORATED BY REFERENCE (FEBRUARY 1998)

THESE CLAUSES ARE APPLICABLE TO STATEMENT OF WORK REQUIREMENTS 4e), 8 and 9.

This contract incorporates the following clauses by reference, with the same
force and effect as if they were given in full text. Upon request, the
Contracting Officer will make their full text available. Also, the full text of
a clause may be accessed electronically at this address:
http://www.arnet.gov/far/.


                                      22.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

a. FEDERAL ACQUISITION REGULATION (FAR) (48 CHAPTER 1) CLAUSES



   FAR
CLAUSE NO.          DATE                             TITLE
- ----------          ----                             -----
                               
52.202-1            Jul 2004         Definitions

52.203-3            Apr 1984         Gratuities (Over $100,000)

52.203-5            Apr 1984         Covenant Against Contingent Fees (Over $100,000)

52.203-6            Jul 1995         Restrictions on Subcontractor Sales to the Government (Over $100,000)

52.203-7            Jul 1995         Anti-Kickback Procedures (Over $100,000)

52.203-8            Jan 1997         Cancellation, Rescission, and Recovery of Funds for Illegal or Improper
                                     Activity (Over $100,000)

52.203-10           Jan 1997         Price or Fee Adjustment for Illegal or Improper Activity (Over $100,000)

52.203-12           Jun 2003         Limitation on Payments to Influence Certain Federal Transactions (Over $100,000)

52.204-4            Aug 2000         Printed or Copied Double-Sided on Recycled Paper (Over $100,000)

52.204-7            Oct 2003         Central Contractor Registration

52.209-6            Jul 1995         Protecting the Government's Interests When Subcontracting With Contractors
                                     Debarred, Suspended, or Proposed for Debarment (Over $25,000)

52.215-2            Jun 1999         Audit and Records - Negotiation (Over $100,000)

52.215-8            Oct 1997         Order of Precedence - Uniform Contract Format

52.215-10           Oct 1997         Price Reduction for Defective Cost or Pricing Data

52.215-12           Oct 1997         Subcontractor Cost or Pricing Data (Over $500,000)

52.215-14           Oct 1997         Integrity of Unit Prices (Over $100,000)

52.215-15           Jan 2004         Pension Adjustments and Asset Reversions

52.215-18           Oct 1997         Reversion or Adjustment of Plans for Post-Retirement Benefits (PRB) other than
                                     Pensions

52.215-19           Oct 1997         Notification of Ownership Changes

52.215-21           Oct 1997         Requirements for Cost or Pricing Data or Information Other Than Cost or Pricing
                                     Data - Modifications

52.216-7            Dec 2002         Allowable Cost and Payment

52.216-8            Mar 1997         Fixed Fee



                                      23.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                               
52.219-8            May 2004         Utilization of Small Business Concerns (Over $100,000)

52.219-9            Jan 2002         Small Business Subcontracting Plan (Over $500,000)

52.219-16           Jan 1999         Liquidated Damages - Subcontracting Plan (Over $500,000)

52.222-2            Jul 1990         Payment for Overtime Premium (Over $100,000) (Note: The dollar amount in
                                     paragraph (a) of this clause is $0 unless otherwise specified in the contract.)

52.222-3            Jun 2003         Convict Labor

52.222-26           Apr 2002         Equal Opportunity

52.222-35           Dec 2001         Equal Opportunity for Special Disabled Veterans, Veterans of the Vietnam Era,
                                     and Other Eligible Veterans

52.222-36           Jun 1998         Affirmative Action for Workers with Disabilities

52.222-37           Dec 2001         Employment Reports on Special Disabled Veterans, Veterans of the Vietnam Era,
                                     and Other Eligible Veterans

52.223-6            May 2001         Drug-Free Workplace

52.223-14           Aug 2003         Toxic Chemical Release Reporting (Over $100,000)

52.225-1            Jun 2003         Buy American Act - Supplies

52.225-13           Dec 2003         Restrictions on Certain Foreign Purchases

52.227-1            Jul 1995         Authorization and Consent, Alternate I (Apr 1984)

52.227-2            Aug 1996         Notice and Assistance Regarding Patent and Copyright Infringement (Over
                                     $100,000)

52.227-11           Jun 1997         Patent Rights - Retention by the Contractor (Short Form) (Note: In accordance
                                     with FAR 27.303(a)(2), paragraph (f) is modified to include the requirements in
                                     FAR 27.303(a)(2)(i) through (iv). The frequency of reporting in,(i) is annual.

52.227-14           Jun 1987         Rights in Data - General

52.232-9            Apr 1984         Limitation on Withholding of Payments

52.232-17           Jun 1996         Interest (Over $100,000)

52.232-20           Apr 1984         Limitation of Cost

52.232-23           Jan 1986         Assignment of Claims

52.232-25           Oct 2003         Prompt Payment, Alternate I (Feb 2002)

52.232-33           Oct 2003         Payment by Electronic Funds Transfer--Central Contractor Registration

52.233-1            Jul 2002         Disputes



                                      24.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                               
52.233-3            Aug 1996         Protest After Award, Alternate I (Jun 1985)

52.242-1            Apr 1984         Notice of Intent to Disallow Costs

52.242-3            May 2001         Penalties for Unallowable Costs (Over $500,000)

52.242-4            Jan 1997         Certification of Final Indirect Costs

52.242-13           Jul 1995         Bankruptcy (Over $100,000)

52.243-2            Aug 1987         Changes - Cost Reimbursement, Alternate V (Apr 1984)

52.244-2            Aug 1998         Subcontracts, Alternate II (Aug 1998) *If written consent to subcontract is
                                     required, the identified subcontracts are listed in ARTICLE B, Advance
                                     Understandings.

52.244-5            Dec 1996         Competition in Subcontracting (Over $100,000)

52.245-5            May 2004         Government Property (Cost-Reimbursement, Time and Material, or Labor-Hour
                                     Contract)

52.246-23           Feb 1997         Limitation of Liability (Over $100,000)

52.249-6            Sep 1996         Termination (Cost-Reimbursement)

52.249-14           Apr 1984         Excusable Delays

52.253-1            Jan 1991         Computer Generated Forms


b.    DEPARTMENT OF HEALTH AND HUMAN SERVICES ACQUISITION REGULATION (HHSAR) (48
      CFR CHAPTER 3) CLAUSES:



  HHSAR
CLAUSE NO.            DATE                              TITLE
- ----------            ----                              -----
                               
352.202-1           Jan 2001         Definitions - with Alternate paragraph (h) (Jan 2001)

352.216-72          Oct 1990         Additional Cost Principles

352.228-7           Dec 1991         Insurance - Liability to Third Persons

352.232-9           Apr 1984         Withholding of Contract Payments

352.233-70          Apr 1984         Litigation and Claims

352.242-71          Apr 1984         Final Decisions on Audit Findings

352.270-5           Apr 1984         Key Personnel

352.270-6           Jul 1991         Publications and Publicity

352.270-7           Jan 2001         Paperwork Reduction Act



                                      25.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

End of GENERAL CLAUSES FOR A COST-REIMBURSEMENT RESEARCH AND DEVELOPMENT
CONTRACT - Rev. 07/2004.

ARTICLE I.2. AUTHORIZED SUBSTITUTION OF CLAUSES

ARTICLE I.1. of this SECTION is hereby modified as follows:

ALTERNATE IV (OCTOBER 1997) of FAR Clause 52.215-21, REQUIREMENTS FOR COST OR
PRICING DATA OR INFORMATION OTHER THAN COST OR PRICING DATA--MODIFICATIONS
(OCTOBER 1997) is added.

FAR Clause 52.232-20 LIMITATION OF COST, is deleted in its entirety and FAR
Clause 52.232-22, LIMITATION OF FUNDS 9APRIL 1984) is substituted therefor.
Note: When this contract is fully funded, FAR Clause 52.232-22, LIMITATION OF
FUNDS will no longer apply and FAR Clause 52.232-20, LIMITATION OF COST will
become applicable.

ARTICLE I.3. ADDITIONAL CONTRACT CLAUSES

This contract incorporates the following clauses by reference, with the same
force and effect, as if they were given in full text. Upon request, the
contracting officer will make their full text available.

a.    FEDERAL ACQUISITION REGULATION (FAR) (48 CFR CHAPTER 1) CLAUSES

      (1)   FAR 52.215-17, Waiver of Facilities Capital Cost of Money (OCTOBER
            1997).

      (2)   FAR 52.216-18, Ordering (OCTOBER 1995)

            "(a)  .... Such orders may be issued from October 29, 2004 through
                  contract expiration date"

      (3)   FAR 52.216-22, Indefinite Quantity (OCTOBER 1995).

            "(d)  ... the Contractor shall not be required to make any
                  deliveries under this contract after contract expiration date"

      (4)   FAR 52.219-4, Notice of Price Evaluation Preference for HUBZone
            Small Business Concerns (JANUARY 1999).

            "(c)  Waiver of evaluation preference.....

                  {  } Offeror elects to waive the evaluation preference."

      (5)   FAR 52.224-1, Privacy Act Notification (APRIL 1984).

      (6)   FAR 52.224-2, Privacy Act (APRIL 1984).

      (7)   FAR 52.227-14, Rights in Data - General (JUNE 1987).

      (8)   FAR 52.242-3, Penalties for Unallowable Costs (MAY 2001).

b.    DEPARTMENT OF HEALTH AND HUMAN SERVICES ACQUISITION REGULATION (HHSAR) (48
      CHAPTER 3) CLAUSES:

      (1)   HHSAR 352.223-70, Safety and Health (JANUARY 2001). This clause is
            provided in full text in SECTION J - ATTACHMENTS.


                                      26.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

      (2)   HHSAR 352.270-8, Protection of Human Subjects (JANUARY 2001).

            Note: The Office for Human Research Protections (OHRP), Office of
            the Secretary (OS), Department of Health and Human Services (DHHS)
            is the office responsible for oversight of the Protection of Human
            subjects and should replace Office for Protection from Research
            Risks (OPRR), National Institutes of Health (NIH) wherever it
            appears in this clause.

      (3)   HHSAR 352.270-9, Care of Live Vertebrate Animals (JANUARY 2001).

ARTICLE I.4. ADDITIONAL FAR CONTRACT CLAUSES INCLUDED IN FULL TEXT

This contract incorporates the following clauses in full text.

FEDERAL ACQUISITION REGULATION (FAR)(48 CFR CHAPTER 1) CLAUSES:

a.    FAR Clause 52.216-19, ORDER LIMITATIONS (OCTOBER 1995)

      (a)   Minimum Order. When the Government requires supplies or services
            covered by this contract in an amount of less than 25,000,000 doses
            of rPA Anthrax vaccine, the Government is not obligated to purchase,
            nor is the Contractor obligated to furnish, those supplies or
            services under the contract.

      (b)   Maximum Order. The Contractor is not obligated to honor--

            (2)   Any order for a single item in excess of 75,000,000 doses of
                  rPA Anthrax vaccine .

            (3)   Any order for a combination of items in excess of 75,000,000
                  doses of rPA Anthrax vaccine ; or

            (4)   A series of orders from the same ordering office within 30days
                  that together call for quantities exceeding the limitation in
                  subparagraph (1) or (2) above.

      (c)   If this is a requirements contract (i.e., includes the Requirements
            clause at subsection 52.216-21 of the Federal Acquisition Regulation
            (FAR)), the Government is not required to order a part of any one
            requirement from the Contractor if that requirement exceeds the
            maximum-order limitations in paragraph (b) above.

      (d)   Notwithstanding paragraphs (b) and (c) above, the Contractor shall
            honor any order exceeding the maximum order limitations in paragraph
            (b), unless that order (or orders) is returned to the ordering
            office within 30days after issuance, with written notice stating the
            Contractor's intent not to ship the item (or items) called for and
            the reasons. Upon receiving this notice, the Government may acquire
            the supplies or services from another source.

b.    FAR Clause 52.244-6, SUBCONTRACTS FOR COMMERCIAL ITEMS (JULY 2004)

      (a)   Definitions. As used in this clause--

            Commercial item, has the meaning contained in Federal Acquisition
            Regulation 52.202-1, Definitions.

            Subcontract, includes a transfer of commercial items between
            divisions, subsidiaries, or affiliates of the Contractor or
            subcontractor at any tier.

      (b)   To the maximum extent practicable, the Contractor shall incorporate,
            and require its subcontractors at all tiers to incorporate,
            commercial items or nondevelopmental items as components of items to
            be supplied under this contract.

      (c)   (1)   The Contractor shall insert the following clauses in
                  subcontracts for commercial items:


                                      27.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                  (i)   52.219-8, Utilization of Small Business Concerns (MAY
                        2004) (15 U.S.C. 637(d)(2) and (3)), in all subcontracts
                        that offer further subcontracting opportunities. If the
                        subcontract (except subcontracts to small business
                        concerns) exceeds $500,000 ($1,000,000 for construction
                        of any public facility), the subcontractor must include
                        52.219-8 in lower tier subcontracts that offer
                        subcontracting opportunities.

                  (ii)  52.222-26, Equal Opportunity (APR 2002) (E.O.11246).

                  (iii) 52.222-35, Equal Opportunity for Special Disabled
                        Veterans, Veterans of the Vietnam Era, and Other
                        Eligible Veterans (DEC 2001) (38 U.S.C. 4212(a)).

                  (iv)  52.222-36, Affirmative Action for Workers with
                        Disabilities (JUN 1998) (29 U.S.C. 793).

                  (v)   52.247-64, Preference for Privately Owned U.S. Flag
                        Commercial Vessels (APR 2003) (46 U.S.C. Appx 1241 and
                        10 U.S.C. 2631) (flow down required in accordance with
                        paragraph (d) of FAR clause 52.247-64).

            (2)   While not required, the Contractor may flow down to
                  subcontracts for commercial items a minimal number of
                  additional clauses necessary to satisfy its contractual
                  obligations.

      (d)   The Contractor shall include the terms of this clause, including
            this paragraph (d), in subcontracts awarded under this contract.


                                      28.

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C


                                    PART III

SECTION J - LIST OF ATTACHMENTS

The following documents are attached and incorporated in this contract

1.    Statement of Work, November 4,2004, 5 pages.

2.    Invoice Instructions for Fixed-Price Contracts, 1 page.

3.    Inclusion Enrollment Report, 5/01 (Modified OAMP: 10/01), 1 page.

4.    Privacy Act System of Records, Number (PENDING)

5.    Safety and Health, HHSAR Clause 352.223-70, (1/01), 1 page.

6.    Research Patient Care Costs, 1 page.


                                      29.

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                                     PART IV

SECTION K - REPRESENTATIONS AND CERTIFICATIONS

The following documents are incorporated by reference in this contract:

1.    Representations and Certifications, dated October 22, 2004.

2.    Human Subjects Assurance Identification Number FWA00001083.

3.    Animal Welfare Assurance Number (To be obtained after contract award).

                              END of the SCHEDULE

                                   (CONTRACT)


                                      30.

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COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                                STATEMENT OF WORK

             Acquisition of Licensed Recombinant Protective Antigen

              Anthrax vaccine for the Strategic National Stockpile

      [ * ]

2.)   Specific Technical Requirements

[ * ]


Statement of Work                                                   ATTACHMENT 1
(11/04/04)                                                                Page 2

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COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.



                                                  Contract No. HHSO100200500001C

Development and Licensure of rPA Anthrax Vaccine:

      Requirement 1 - Vaccine Production and cGMP Compliance

      [ * ]

      Requirement 2 - Stability Testing of Finished Vaccine

      [ * ]

      Requirement 3 - Design of Safety and Efficacy Studies

      [ * ]

      Requirement 4 - Conduct Safety and Efficacy Studies

      [ * ]

      Requirement 5 - Regulatory Submissions

      [ * ]

      Requirement 6 - Shipment to SNS and Storage

      [ * ]

      Requirement 7 - Disposition of Vaccine Inventory

      [ * ]

      Requirement 8 - Maintaining a "Warm Base"

      [ * ]

      Requirement 9 - Clinical Trials in Special Populations

      [ * ]

      Requirement 10 - Security of Contract Operations

      [ * ]

3.)   Meetings and Conferences

      [ * ]

Statement of Work                                                   ATTACHMENT 1
(11/04/04)                                                                Page 2

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COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.



                                                  Contract No. HHSO100200500001C

                 INVOICE INSTRUCTIONS FOR FIXED-PRICE CONTRACTS.

General The contractor shall submit vouchers or invoices as prescribed herein.

Format Standard Form 1034, Public Voucher for Purchases and Services Other Than
Personal, and Standard Form 1035, Public Voucher for Purchases and Services
Other than Personal--Continuation Sheet, or the payee's letterhead or
self-designed form should be used to submit claims for reimbursement.

Number of Copies As indicated in the Invoice Submission Clause in the contract.

Frequency Invoices submitted in accordance with the Payment Clause shall be
submitted upon delivery of goods or services unless otherwise authorized by the
contracting officer.

Preparation and Itemization of the Invoice The invoice shall be prepared in ink
or typewriter as follows:

      (a)   Designated Billing Office and address

      (b)   Invoice Number

      (c)   Date of Invoice

      (d)   Both the contract number and the ADB number (which appears in the
            upper left hand corner of the face page of the contract), and date

      (e)   Payee's name and address. Show the contractor's name ( as it appears
            in the contract), correct address, and the title and phone number of
            the responsible official to whom payment is to be sent. When an
            approved assignment has been made by the contractor, or a different
            payee has been designated, then insert the name and address of the
            payee instead of the contractor.

      (f)   Description of goods or services, quantity, unit price, (where
            appropriate), and total amount.

      (g)   Charges for freight or express shipments other than F.O.B.
            destination. (If shipped by freight or express and charges are more
            than $25, attach prepaid bill.)

      (h)   Equipment If there is a contract clause authorizing the purchase of
            any item of equipment, the final invoice must contain a statement
            indicating that no item of equipment was purchased or include a
            completed NIH Form entitled, "Report of Government Owned, Contractor
            Held Property."

Currency All DHHS contracts are expressed in United States dollars. Where
payments are made in a currency other than United States dollars, billings on
the contract shall be expressed, and payment by the United States Government
shall be made, in that other currency at amounts coincident with actual costs
incurred. Currency fluctuations may not be a basis of gain or loss to the
contractor. Notwithstanding the above, the total of all invoices paid under this
contract may not exceed the United States dollars authorized.


                                                                    ATTACHMENT 2

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.



                                                  Contract No. HHSO100200500001C

                          PRIVACY ACT SYSTEM OF RECORDS

**** THE PRIVACY ACT SYSTEM OF RECORDS WILL BE ADDED TO THE CONTRACT IN A FUTURE
     MODIFICATION. ****


Privacy Act System of Records                                       ATTACHMENT 3
( / / )                                   1

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COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.



                                                  Contract No. HHSO100200500001C

                HHSAR 352.223-70 SAFETY AND HEALTH (JANUARY 2001)

(a)   To help ensure the protection of the life and health of all persons, and
      to help prevent damage to property, the Contractor shall comply with all
      Federal, State and local laws and regulations applicable to the work being
      performed under this contract. These laws are implemented and/or enforced
      by the Environmental Protection Agency, Occupational Safety and Health
      Administration and other agencies at the Federal, State and local levels
      (Federal, State and local regulatory/enforcement agencies).

(b)   Further, the Contractor shall take or cause to be taken additional safety
      measures as the Contracting Officer in conjunction with the project or
      other appropriate officer, determines to be reasonably necessary. If
      compliance with these additional safety measures results in an increase or
      decrease in the cost or time required for performance of any part of work
      under this contract, an equitable adjustment will be made in accordance
      with the applicable "Changes" Clause set forth in this contract.

(c)   The Contractor shall maintain an accurate record of, and promptly report
      to the Contracting Officer, all accidents or incidents resulting in the
      exposure of persons to toxic substances, hazardous materials or hazardous
      operations; the injury or death of any person; and/or damage to property
      incidental to work performed under the contract and all violations for ---
      which the Contractor has been cited by any Federal, State or local
      regulatory/enforcement agency. The report shall include a copy of the
      notice of violation and the findings of any inquiry or inspection, and an
      analysis addressing the impact these violations may have on the work
      remaining to be performed. The report shall also state the required
      action(s), if any, to be taken to correct any violation(s) noted by the
      Federal, State or local regulatory/enforcement agency and the time frame
      allowed by the agency to accomplish the necessary corrective action.

(d)   If the Contractor fails or refuses to comply promptly with the Federal,
      State or local regulatory/enforcement agency's directive(s) regarding any
      violation(s) and prescribed corrective action(s), the Contracting Officer
      may issue an order stopping all or part of the work until satisfactory
      corrective action (as approved by the Federal, State or local
      regulatory/enforcement agencies) has been taken and documented to the
      Contracting Officer. No part of the time lost due to any stop work order
      shall be subject to a claim for extension of time or costs or damages by
      the Contractor.

(e)   The Contractor shall insert the substance of this clause in each
      subcontract involving toxic substances, hazardous materials, or
      operations. Compliance with the provisions of this clause by
      subcontractors will be the responsibility of the Contractor.

                                 (End of clause)


Safety and Health Clause                                            ATTACHMENT 5
HHSAR 352.223-70, (1/01)                 1

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COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                                  Contract No. HHSO100200500001C

                           RESEARCH PATIENT CARE COSTS

(a)   Research patient care costs are the costs of routine and ancillary
      services provided to patients participating in research programs described
      in this contract.

(b)   Patient care costs shall be computed in a manner consistent with the
      principles and procedures used by the Medicare Program for determining the
      part of Medicare reimbursement based on reasonable costs. The Diagnostic
      Related Group (DRG) prospective reimbursement method used to determine the
      remaining portion of Medicare reimbursement shall not be used to determine
      patient care costs. Patient care rates or amounts shall be established by
      the Secretary of HHS or his duly authorized representative.

(c)   Prior to submitting an invoice for patient care costs under this contract,
      the contractor must make every reasonable effort to obtain third party
      payment, where third party payors (including Government agencies) are
      authorized or are under a legal obligation to pay all or a portion of the
      charges incurred under this contract for patient care.

(d)   The contractor must maintain adequate procedures to identify those
      research patients participating in this contract who are eligible for
      third party reimbursement.

(e)   Only those charges not recoverable from third party payors or patients and
      which are consistent with the terms and conditions of the contract are
      chargeable to this contract.

                                                                    ATTACHMENT 6


                                       1

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BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.