AVIRON
S-3/A, 1998-03-13
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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<PAGE>
     
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 13, 1998
                                               REGISTRATION NO. 333-41649      
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                         -----------------------------
                               AMENDMENT NO. 1
                                      TO      
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                         ------------------------------
                                     AVIRON
             (Exact name of Registrant as specified in its charter)

         DELAWARE                                           77-0309686
(State or other jurisdiction of                  (I.R.S. Employer Identification
incorporation or organization)                             Number)

                         ------------------------------
                           297 NORTH BERNARDO AVENUE
                        MOUNTAIN VIEW, CALIFORNIA 94043
                                 (650) 919-6500
         (Address, including zip code, and telephone number, including
            area code, of registrant's principal executive offices)
                                _______________
                             J. LEIGHTON READ, M.D.
                      CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                           297 NORTH BERNANDO AVENUE
                        MOUNTAIN VIEW, CALIFORNIA 94043
                                 (650) 919-6500
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                                _______________
                                   COPIES TO:

                            ALAN C. MENDELSON, ESQ.
                            ROBERT J. BRIGHAM, ESQ.
                               COOLEY GODWARD LLP
                             FIVE PALO ALTO SQUARE
                              3000 EL CAMINO REAL
                            PALO ALTO, CA 94306-2155
                                 (650) 843-5000
                                _______________
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
  As soon as practicable after this Registration Statement becomes effective.
                                _______________
  If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

  If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

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

  If this Form is filed in a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act registration statement number of the earlier effective registration
statement of the same offering.  [ ]

  If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]
                                _______________
         
                          ----------------------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE
A FURTHER AMENDMENT THAT SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
================================================================================
<PAGE>
 
    
                              Explanatory Note

        This Amendment to the Registration Statement on Form S-3 (the 
"Registration Statement") is being filed solely to amend Exhibit 10.16 to the 
Registration Statement.     
<PAGE>
 
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     The following table sets forth the expenses payable by the Registrant in
connection with the sale, issuance and distribution of the securities being
registered, other than underwriting discounts and commissions.  All amounts are
estimates except the SEC registration fee.  None of these expenses will be paid
by the Selling Securityholder.

     SEC Registration Fee..............   $15,000
     Printing Expenses.................     5,000
     Legal Fees and Expenses...........    15,000
     Accounting Fees and Expenses......    10,000

     Total.............................   $45,000
                                           ------

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Under Section 145 of the Delaware General Corporation Law, Aviron has broad
powers to indemnify its directors and officers against liabilities they may
incur in such capacities, including liabilities under the Act.  Aviron's Bylaws
also provide that the Registrant will indemnify its directors and executive
officers and may indemnify its other officers, employees and agents to the
fullest extent not prohibited by Delaware General Corporation Law.

     Aviron's Certificate of Incorporation provides for the elimination of
liability for monetary damages for breach of the directors' fiduciary duty of
care to Aviron and its stockholders.  These provisions do not eliminate the
director's duty of care, and in appropriate circumstances, equitable remedies
such as injunctive or other forms of non-monetary relief will remain available
under Delaware law.  In addition, each director will continue to be subject to
liability for breach of the director's duty of loyalty to the Company, for acts
or omissions not in good faith or involving intentional misconduct or a knowing
violation of law, for any transaction from which the director derived an
improper personal benefit and for payment of dividends or approval of stock
repurchases or redemptions that are unlawful under Delaware Law.  The provision
also does not affect a director's responsibilities under any other laws, such as
the federal securities laws or state or federal environmental laws.

                                     II-1
<PAGE>
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.


<TABLE>     
<CAPTION> 
 EXHIBIT
  NUMBER           DESCRIPTION OF DOCUMENT
 -------           -----------------------
 <C>         <S> 
   1.1       Form of Underwriting Agreement.(1)
   3.1       Bylaws of the Registrant. (2)
   3.2       Restated Certificate of Incorporation of the Registrant. (2)
   4.1       Reference is made to Exhibits 3.1 and 3.2.
   4.2       Specimen Stock Certificate. (1)
   4.3       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.4       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.5       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.6       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.7       Warrant for Series C Preferred Stock, issued to Raymond, James &
             Associates. (1)
   4.8       Investors Rights Agreement, dated July 18, 1995, among the 
             Registrant and the investors named thereon. (1)
   4.9       Common Stock Purchase Agreement between the Registrant and Biotech
             Target, S.A., dated as of March 27, 1997. (3)
  4.10       Rights Agreement between the Registrant and BankBoston, N.A., dated
             as of October 8, 1997.(5)
   5.1       Opinion of Cooley Godward LLP. (6)
 +10.1       License Agreement between the Registrant and ARCH Development 
             Corporation, dated July 1, 1992. (1)
 +10.2       Technology Transfer Agreement between the Registrant and The Mount
             Sinai School of Medicine of the City University of New York, dated 
             February 9, 1993. (1)
 +10.3       Materials Transfer and Intellectual Property Agreement between the
             Registrant and the Regents of the University of Michigan, dated
             February 24, 1995. (1)
 +10.4       Stock Transfer Agreement between the Registrant and the Regents of
             the University of Michigan, dated February 24, 1995. (1)
 +10.5       Development and License Agreement between the Registrant and Sang-A
             Pharm. Co., Ltd., dated May 3, 1995. (1)
 +10.6       Cooperative Research and Development Agreement, between the
             Registrant and the National Institute of Health, dated May 30, 1995
             (1)
 +10.7       Heads of Agreement between the Registrant and SmithKline Beecham 
             Biologicals S.A., dated October 8, 1995. (1)
 +10.8       Manufacturing and Development Agreement between the Registrant and
             Evans Medical Limited, dated November 7, 1995. (1)
  10.9       1996 Equity Incentive Plan. (1)
  10.10      1996 Non-Employee Directors' Stock Option Plan. (1)
  10.11      1996 Employee Stock Purchase Plan. (1)
  10.12      Industrial Lease between the Registrant and the Vanni Business Park
             General Partnership, dated August 29, 1995. (1)
 +10.13      First Amendment to License Agreement between the Registrant and 
             ARCH Development Corporation, dated March 15, 1996. (1)
 +10.14      Biological Materials License Agreement between the Registrant and 
             the National Institutes of Health, dated May 31, 1996. (1)
 +10.15      Contract Manufacture Agreement between the Registrant and Evans
             Medical Limited, dated as of April 16, 1997. (4)
++10.16      Production Agreement between the Registrant and Packaging 
             Coordinators, Inc. dated as of October 31, 1997.
  10.17      Facility Reservation Agreement between the Registrant and Packaging
             Coordinators, Inc. dated as of October 31, 1997. (6)
  23.1       Consent of Ernst & Young LLP, Independent Auditors. (6)
  23.2       Consent of Cooley Godward LLP. Reference is made to 
             Exhibit 5.1. (6)
</TABLE>      

- ------------------
 +    Confidential treatment has been granted for portions of this exhibit
++    Confidential treatment has been requested for portions of this exhibit.
(1)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Registration Statement on Form S-1, File No. 333-05209, filed
      June 5, 1996, as amended.
(2)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Quarterly Report on Form 10-Q for the quarter ended September
      30, 1996, File No. 0-20815, filed December 20, 1996.
(3)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 
      1997, File No. 0-20815, filed May 15, 1997. 
(4)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Current Report on Form 8-K File No. 0-20815, dated April 16, 
      1997 and filed July 21, 1997. 
(5)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Current Report on Form 8-K File No. 0-20815, dated October 8, 
      1997 and filed October 10, 1997. 
    
(6)   Previously filed with the Registration Statement.      


ITEM 17. UNDERTAKINGS.

     The undersigned Registrant hereby undertakes:

(1)  To file, during any period in which offers or sales are being made, a post-
     effective amendment to this registration statement to include any material
     information with respect to the plan of distribution not previously
     disclosed in the registration statement or any material change to such
     information in the registration statement;

(2)  That, for purposes of determining any liability under the Securities Act,
     each such post-effective amendment shall be deemed to be a new registration
     statement relating to the securities offered therein, and the offering of
     such securities at that time shall be deemed to be the initial bona fide
     offering thereof; and

(3)  To remove from registration by means of a post-effective amendment any of
     the securities being registered which remain unsold at the termination of
     the offering.

     The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 (and, where applicable, each filing of an employee benefit
plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934) that is incorporated by reference in the registration statement shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to provisions described in Item 15, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable.  In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

                                     II-2
<PAGE>
 
                                   SIGNATURES
    
     Pursuant to the requirements of the Securities Act, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Amendment to the
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Palo Alto, State of California, on March 11,
1998.     

         
                                         AVIRON


                                         By /s/ J. Leighton Read, M.D.
                                           _____________________________________
                                              J. Leighton Read, M.D.
                                              Chairman of the Board &
                                              Chief Executive Officer
                                              (Principal Executive Officer)

     Pursuant to the requirements of the Securities Act, this Registration
Statement has been signed below by the following persons in the capabilities and
on the date indicated.

<TABLE>     
<CAPTION>
          SIGNATURE                            TITLE                           DATE
          ---------                            -----                           ----
<S>                              <C>                                       <C>
 
/s/ J. Leighton Read, M.D.       Chairman of the Board & Chief             March 11, 1998
- ------------------------------   Executive Officer (Principal Executive
J. Leighton Read, M.D.           Officer)
 
/s/ Fred Kurland                 Chief Financial Officer (Principal        March 11, 1998
- ------------------------------   Financial and Accounting Officer)
Fred Kurland

    *                            Director                                  March 11, 1998
- ------------------------------
Reid W. Dennis

    *                            Director                                  March 11, 1998
- ------------------------------
Paul H. Klingenstein

    *                            Director                                  March 11, 1998
- ------------------------------
Bernard Roizman, Sc.D.

    *                            Director                                  March 11, 1998
- ------------------------------
L. James Strand, M.D.

    *                            Director                                  March 11, 1998
- -----------------------------
Jane E. Shaw, Ph.D.


*By: J. Leighton Read, M.D.
     ------------------------
     Attorney-in-Fact
</TABLE>      

                                     II-3
<PAGE>
 
                              INDEX TO EXHIBITS

<TABLE>     
<CAPTION> 
 EXHIBIT
  NUMBER           DESCRIPTION OF DOCUMENT
 -------           -----------------------
 <C>         <S> 
   1.1       Form of Underwriting Agreement.(1)
   3.1       Bylaws of the Registrant. (2)
   3.2       Restated Certificate of Incorporation of the Registrant. (2)
   4.1       Reference is made to Exhibits 3.1 and 3.2.
   4.2       Specimen Stock Certificate. (1)
   4.3       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.4       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.5       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.6       Warrant for Series A Preferred Stock, issued to The Mount Sinai
             School of Medicine of the City of New York. (1)
   4.7       Warrant for Series C Preferred Stock, issued to Raymond, James &
             Associates. (1)
   4.8       Investors Rights Agreement, dated July 18, 1995, among the 
             Registrant and the investors named thereon. (1)
   4.9       Common Stock Purchase Agreement between the Registrant and Biotech
             Target, S.A., dated as of March 27, 1997. (3)
  4.10       Rights Agreement between the Registrant and BankBoston, N.A., dated
             as of October 8, 1997.(5)
   5.1       Opinion of Cooley Godward LLP. (6)
 +10.1       License Agreement between the Registrant and ARCH Development 
             Corporation, dated July 1, 1992. (1)
 +10.2       Technology Transfer Agreement between the Registrant and The Mount
             Sinai School of Medicine of the City University of New York, dated 
             February 9, 1993. (1)
 +10.3       Materials Transfer and Intellectual Property Agreement between the
             Registrant and the Regents of the University of Michigan, dated
             February 24, 1995. (1)
 +10.4       Stock Transfer Agreement between the Registrant and the Regents of
             the University of Michigan, dated February 24, 1995. (1)
 +10.5       Development and License Agreement between the Registrant and Sang-A
             Pharm. Co., Ltd., dated May 3, 1995. (1)
 +10.6       Cooperative Research and Development Agreement, between the
             Registrant and the National Institute of Health, dated May 30, 1995
             (1)
 +10.7       Heads of Agreement between the Registrant and SmithKline Beecham 
             Biologicals S.A., dated October 8, 1995. (1)
 +10.8       Manufacturing and Development Agreement between the Registrant and
             Evans Medical Limited, dated November 7, 1995. (1)
  10.9       1996 Equity Incentive Plan. (1)
  10.10      1996 Non-Employee Directors' Stock Option Plan. (1)
  10.11      1996 Employee Stock Purchase Plan. (1)
  10.12      Industrial Lease between the Registrant and the Vanni Business Park
             General Partnership, dated August 29, 1995. (1)
 +10.13      First Amendment to License Agreement between the Registrant and 
             ARCH Development Corporation, dated March 15, 1996. (1)
 +10.14      Biological Materials License Agreement between the Registrant and 
             the National Institutes of Health, dated May 31, 1996. (1)
 +10.15      Contract Manufacture Agreement between the Registrant and Evans
             Medical Limited, dated as of April 16, 1997. (4)
++10.16      Production Agreement between the Registrant and Packaging 
             Coordinators, Inc. dated as of October 31, 1997.
  10.17      Facility Reservation Agreement between the Registrant and Packaging
             Coordinators, Inc. dated as of October 31, 1997. (6)
  23.1       Consent of Ernst & Young LLP, Independent Auditors. (6)
  23.2       Consent of Cooley Godward LLP. Reference is made to 
             Exhibit 5.1. (6)
</TABLE>      

- ------------------
 +    Confidential treatment has been granted for portions of this exhibit
++    Confidential treatment has been requested for portions of this exhibit.
(1)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Registration Statement on Form S-1, File No. 333-05209, filed
      June 5, 1996, as amended.
(2)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Quarterly Report on Form 10-Q for the quarter ended September
      30, 1996, File No. 0-20815, filed December 20, 1996.
(3)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 
      1997, File No. 0-20815, filed May 15, 1997. 
(4)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Current Report on Form 8-K File No. 0-20815, dated April 16, 
      1997 and filed July 21, 1997. 
(5)   Incorporated by reference to the correspondingly numbered exhibit to the
      Company's Current Report on Form 8-K File No. 0-20815, dated October 8, 
      1997 and filed October 10, 1997. 
    
(6)   Previously filed with the Registration Statement.      

<PAGE>
 
                                                                   Exhibit 10.16

                             PRODUCTION AGREEMENT
                                    BETWEEN
                         PACKAGING COORDINATORS, INC.
                                      AND
                                    AVIRON


        This Agreement made effective as of October 31, 1997 (the "Effective
Date") by and between Packaging Coordinators, Inc., a Pennsylvania corporation
with offices at 3001 Red Lion Road, Philadelphia, Pennsylvania 19114
(hereinafter called "PCI"); and Aviron, a Delaware corporation with offices at
297 N. Bernardo Avenue, Mountain View, CA 94043 (hereinafter called "Aviron").
PCI and Aviron may be referred to herein as a "Party" or, collectively, as
"Parties."

                                  WITNESSETH

        WHEREAS, PCI specializes in packaging for the pharmaceutical industries
and has certain technical and commercial information and know-how relating to,
among other things, performing assembly functions and packaging of
pharmaceutical products.

        WHEREAS, Aviron is a corporation that develops, conducts stability
trials, registers, and intends to market pharmaceutical products, and is the
owner of certain proprietary technical and commercial information and know-how
relating to, among other things, the formulation and development of such
products.

        WHEREAS, Aviron desires to engage PCI to provide certain services to
Aviron in connection with the manufacture of certain of Aviron's products; and
WHEREAS, Aviron desires to collaborate with PCI to construct and develop an
appropriate site for such manufacture at PCI's facility; 

        NOW, THEREFORE, in consideration of the premises and the mutual promises
contained herein and intending to be legally bound hereby, the Parties agree as
follows:

1.      DEFINITIONS
        -----------

The following terms as used in this Agreement shall have the meanings set forth
in this Article unless otherwise specifically provided herein:

        1.1     "Affiliate(s)" shall mean any corporation, firm, partnership or
                other entity which controls, is controlled by or is under common
                control with a Party. For purposes of this definition, "control"
                shall mean the ownership of at least fifty (50%) percent of the
                voting share capital of such entity or any other comparable
                equity or ownership interest.

        1.2     "Agency" shall mean any governmental regulatory authority
                involved in regulating any aspect of the development,
                Manufacture, Storage and sale of the Product.

[*]= CERTAIN INFORMATION IN THIS DOCUMENT HAS BEEN OMITTED AND FILED SEPARATELY
WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO
THE OMITTED PORTIONS.
                                       1.
<PAGE>
 
        1.3     "Aviron Production Equipment" shall mean the [*] equipment
                purchased by Aviron set forth in Appendix 1 attached hereto,
                which may be amended from time to time.

        1.4     "Aviron Area" shall mean the area reserved for [*] Production 
                pursuant to, and more fully described in, the Facility 
                Reservation Agreement.

        1.5     "cGMP" shall mean all the laws, regulations and standards
                relating to Primary and Secondary Production, including but not
                limited to, the United States Food And Drug Administration (FDA)
                current Good Manufacturing Practices, as set forth in the Code
                Of Federal Regulations (CFR), and the EEC Good Manufacturing
                Guidelines, Volume IV as such Regulations and Guidelines may be
                revised from time to time, and any other applicable laws,
                guidelines and regulations. If there should be a conflict
                between the FDA and EEC standards, the more stringent of the two
                shall apply. Aviron shall be responsible to advise PCI of cGMP
                and other Agency requirements which shall apply to Primary and
                Secondary Production conducted hereunder.

        1.6     "Delivery Date" shall mean the date on which Product is
                delivered to the carrier for shipment from PCI to Aviron
                pursuant to Section 7.2. 

        1.7     "Facility" shall mean PCI's facility at [*] or other facility
                that may be mutually agreed in writing by the Parties.

        1.8     "Facility Reservation Agreement" shall mean that certain
                agreement dated October 31, 1997 under which the Parties agreed
                to construct and build-out the Aviron Area and reserve the
                Aviron Area for Aviron.

        1.9     "FDA" shall mean the United States Food and Drug Administration
                and any successor agency having substantially the same function.

        1.10    "Manufacture" shall mean the process of [*] Production.

        1.11    "Materials" shall mean all components utilized in [*] Production
                 except for the Vaccine and Syringes.

        1.12    "Michigan" shall mean the Regents of the University of Michigan,
                a constitutional corporation of the State of Michigan with
                offices located at Wolverine Tower, Room 2071, 3003 South State
                Street, Ann Arbor, Michigan, 48109-1280, USA.

        1.13    "Michigan Agreement" shall mean a certain Materials Transfer and
                Intellectual Property Agreement between Aviron and Michigan
                dated 24 February 1995.

        1.14    "PCI Production Equipment" shall mean all of the [*] purchased
                by PCI as set forth in Appendix 2, which may be amended from
                time to time.


[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.
                                      2.
<PAGE>
 
        1.15    [ * ] Production" shall mean the [ * ] as set forth in Appendix
                3.

        1.16    "Product" shall mean the product which is the result of [*]
                Production.

        1.17    "Proprietary Information" shall have the meaning set forth in
                Article 12.
                    
        1.18    "[ * ]" shall mean [ * ] as set forth in 
                Appendix 3.     

        1.19    "Specifications" shall mean the procedures, test results,
                requirements, quality standards data and other documentation
                with respect to Materials, Syringes, [*] Production,
                [*] Production, Product, Production Equipment, and Vaccine
                and Storage of the Vaccine and the Product to be determined by
                the parties as set forth in Section 6.7, and, once completed, to
                be appended hereto as Appendix 3, as may be amended from time to
                time.

        1.20    "Store" or "Storage" shall mean the storage of [ * ] as set
                forth in the Specifications.

        1.21    "Syringe" shall mean the unfilled syringe and holder supplied to
                PCI by Aviron as set forth in the Specifications.

        1.22    "Vaccine" shall mean the bulk cold-adapted multivalent influenza
                vaccine provided to PCI by Aviron as set forth in the
                Specifications.

2.      FACILITY
        --------

        2.1     CONSTRUCTION AND RESERVATION OF AVIRON AREA. The Parties agree
                to collaborate on the construction, build-out and reservation of
                the Aviron Area pursuant to the Facility Reservation Agreement
                attached as Appendix 4 hereto.

3.      PRODUCTION EQUIPMENT
        --------------------

        3.1     INSTALLATION AND QUALIFICATION. Each Party will, at its sole
                expense, provide, install in the Aviron Area and qualify its
                respective Production Equipment in compliance with cGMP.

        3.2     MAINTENANCE. PCI agrees to maintain and operate the Aviron and
                PCI Production Equipment used, directly or indirectly, for
                [ * ] Production, in all material respects, in accordance with
                (i) cGMPs, (ii) applicable Agency requirements and (iii) the
                Specifications. PCI shall be responsible for routine maintenance
                in accordance with the equipment manufacturers' guidelines,
                cGMPs and other applicable laws and regulations, and for other
                repairs required as a result of the negligence or intentional
                misconduct of PCI or its employees. Aviron shall bear all other
                expenses incurred for the maintenance (other than routine
                maintenance), repair and/or replacement, as needed of the Aviron
                Production Equipment. For the purpose of this Agreement,
                "routine

[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.

                                       3.
<PAGE>
 
                maintenance" shall mean preventive maintenance as set forth in
                the Specifications.

        3.3     OWNERSHIP. Aviron shall at all times hold all right, title and
                interest in the Aviron Production Equipment. PCI shall not, at
                any time during the term of this Agreement, encumber the Aviron
                Production Equipment. PCI shall at all times hold all right,
                title and interest in the PCI Production Equipment. Aviron shall
                not, at any time during the term of this Agreement, encumber the
                PCI Production Equipment. Prior to the commencement of [ * ] 
                Production, each Party shall provide evidence to the other
                Party's reasonable satisfaction indicating that Party's
                Production Equipment is insured and that such insurance covers
                the other Party (as an additional insured) for any loss or
                damage to the other Party, or its property or employees, except
                where such loss or damage is a result of the negligence or
                intentional misconduct of the other Party or its employees.

4.      SUPERVISION WITHIN THE AVIRON AREA
        ----------------------------------

        4.1     AVIRON TECHNICAL REPRESENTATIVE. Aviron shall have the right to
                have one or more representatives in the Aviron Area during
                [ * ] Production to (i) review Production Equipment and [ * ]
                Production, (ii) review any relevant records in connection with 
                such [ * ] Production and assess its compliance with cGMP and 
                quality assurance standards set forth in the Specifications and
                (iii) discuss any related issues with PCI's management. Aviron's
                technical representatives, when on-site, shall comply with PCI's
                rules and regulations. Aviron shall indemnify and hold PCI and
                its Affiliates harmless from all liability, including claims by
                Aviron's technical representatives for workers' compensation,
                resulting from the presence of Aviron's technical
                representatives at the Facility except for claims resulting from
                the negligent or willful misconduct on the part of PCI and its
                employees.

        4.2     RESPONSIBILITIES. Aviron's technical representative, if present,
                shall not have responsibility for the supervision of PCI's
                personnel conducting [ * ] Production. However, if at any time 
                Aviron's technical representatives feel that PCI is operating in
                a manner inconsistent with this Agreement, he/she is to notify
                PCI immediately to cease operations until such condition is
                remedied. PCI will immediately cease operations and will not
                recommence [ * ] Production operations without Aviron's 
                approval. PCI shall use its best efforts to remedy any such
                condition and Aviron shall authorize PCI to resume [ * ]
                Production upon reasonable satisfaction that such condition has
                been remedied. Nothing herein shall amend or alter the status of
                PCI as an independent contractor.

5.      FORECAST, PURCHASE AND SUPPLY OF PRODUCT
        ----------------------------------------

        5.1     PURCHASE AND SUPPLY. During the term of this Agreement, Aviron
                shall purchase and PCI shall supply such quantities of Product
                as may be set forth on purchase orders placed by Aviron under
                this Agreement. All purchases of Product hereunder shall be
                governed by the terms of this Agreement which shall 

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                supersede any inconsistent provisions in any purchase order
                delivered by Aviron to PCI.

        5.2     FORECASTS. On or before September 30 and March 31 of each year
                during the term of this Agreement, Aviron will provide PCI with
                a written eighteen (18) month rolling forecast, to be updated in
                six (6) month intervals, of the quantity of Product which Aviron
                expects to require from PCI during each of the next eighteen
                (18) months. The first six (6) months of the first such rolling
                forecast shall be binding upon Aviron. Aviron's first forecast
                shall include (i) the required Delivery Date for the binding
                portion of the forecast and (ii) the quantity of Product to be
                delivered.

        5.3     ORDERS. Following the Effective Date, Aviron will provide PCI
                with one or more purchase orders at six month intervals. Each
                such purchase order will set forth (i) the quantity of Product
                ordered for delivery during the six months after the date on
                which the purchase order is deemed to be received, (ii) the
                requested Delivery Date for such order, (iii) the quantity of
                Product to be delivered to Aviron as a quality control sample,
                (iv) the quantity of Product to be delivered on the Delivery
                Date in each form of packaging and (v) the lot numbers to be
                applied to such Product. Such purchase order shall be delivered
                no later than ninety (90) days prior to the earliest requested
                Delivery Date.

        5.4     CONFIRMATION; ORDERS GREATER THAN FORECAST. Within fifteen (15)
                days of receipt of any purchase order, PCI shall confirm in
                writing such order and the Delivery Date therefor. PCI shall use
                reasonable commercial efforts to supply the quantity of Product
                ordered, regardless of the quantity forecast by Aviron, subject
                to the capacity limitations of the Aviron and PCI Production
                Equipment. In the event that PCI is unable to fill any order,
                PCI shall so notify Aviron in its written confirmation.

        5.5     AMENDMENT OF PURCHASE ORDERS. PCI will use best efforts to
                accommodate a request to amend a purchase order to increase or
                decrease the quantity of Product to be delivered.

        5.6     CANCELLATIONS. Aviron may cancel any purchase order by providing
                PCI written notice at least ninety (90) days prior to the
                confirmed Delivery Date. In the event that Aviron cancels any
                order for Product, Aviron shall reimburse PCI for non-
                cancellable direct costs reasonably incurred by PCI in
                connection with performance of such purchase order up to the
                time of receipt of such notice.

        5.7     SUPPLY COMMITMENTS. Subject to the limitations set forth in
                Section 5.4, PCI represents and warrants that it has the ability
                to, and hereby covenants that it will, supply the quantity of
                Product ordered by Aviron.

        5.8     LIMITED WARRANTY. PCI WARRANTS THAT PRODUCT DELIVERED HEREUNDER
                WILL (i) BE MANUFACTURED BY PCI IN ACCORDANCE WITH cGMP AND
                OTHER APPLICABLE FEDERAL, STATE AND LOCAL LAWS AND REGULATIONS,
                INCLUDING BUT NOT LIMITED TO FDA REGULATIONS, (ii) BE
                MANUFACTURED IN ACCORDANCE WITH THE SPECIFICATIONS AND 

                                       5.
<PAGE>
 
                (iii) CONFORM TO THE APPLICABLE SPECIFICATIONS, AS THEN IN
                EFFECT, AS OF THE DELIVERY DATE. EXCEPT AS SET FORTH HEREIN, PCI
                MAKES NO WARRANTIES, EXPRESS OR IMPLIED, CONCERNING THE
                PRODUCTS, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
                FOR ANY PARTICULAR PURPOSE.

6.      SUPPLY AND PROCESSING OF VACCINE, SYRINGES, HOLDERS AND MATERIALS
        -----------------------------------------------------------------

        6.1     LICENSE; INVENTIONS. (a) Aviron hereby grants to PCI, during the
                term of this Agreement, a non-exclusive, non-transferable,
                royalty-free license during the term of this Agreement to use
                the data, information and technology provided by Aviron related
                to the Vaccine for the limited purpose of assisting PCI in
                carrying out its obligations set forth in this Agreement. (b)
                PCI agrees that any and all ideas, improvements, inventions and
                works of authorship conceived, written or first reduced to
                practice in the performance of this Agreement whether by PCI's
                employees alone or in conjunction with Aviron, that are related
                to the Vaccine or [ * ] Production (the "Aviron Inventions")
                shall be the sole and exclusive property of Aviron and PCI
                hereby assigns to Aviron all right, title and interest in and to
                any and all such Aviron Inventions. (c) Aviron agrees that any
                and all ideas, improvements, inventions and works of authorship
                conceived, written or first reduced to practice in the
                performance of this Agreement that are related to [ * ]
                Production (the "PCI Inventions") shall be the sole and
                exclusive property of PCI and Aviron assigns all right, title
                and interest in and to any and all such PCI Inventions. PCI
                hereby grants to Aviron a non-exclusive, worldwide, royalty-free
                license to use and practice such PCI Inventions for the
                manufacture, by or for Aviron of any of Aviron's products. Such
                license shall survive the termination or expiration of this
                Agreement.

        6.2     SUPPLY OF VACCINE AND SYRINGES. Aviron shall, at Aviron's
                expense, deliver or cause to be delivered, sufficient quantities
                of Vaccine and Syringes meeting the Specifications to the
                Facility such that PCI can fill purchase orders for the
                Manufacture of the Product submitted pursuant to Section 5.3.

        6.3     RISK OF LOSS OF VACCINE AND SYRINGE. PCI shall bear all risk of
                loss for Vaccine and Syringes delivered to PCI under Section 6.2
                which results from PCI's failure to comply with the
                Specifications or from the negligence or intentional misconduct
                of PCI or its employees. If, for any purpose under this
                Agreement, PCI is required to obtain Vaccine or Syringes from
                Aviron at PCI's expense, Aviron's charges to PCI for such
                Vaccine or Syringes will be equal to Aviron's direct costs to
                deliver such Vaccine or Syringes to PCI.

        6.4     SUPPLY OF MATERIALS. Unless otherwise notified by Aviron, PCI
                shall purchase all Materials, including but not limited to those
                set forth in the Specifications, required to complete the
                [ * ] Production of the Product. PCI shall provide Aviron
                with a monthly inventory of all Vaccine, Syringes and Materials.
                Detailed Material usage reports will be provided to Aviron by
                PCI each month. In the event Aviron desires to obtain the
                Materials from sources other than PCI, it shall have the right
                to do so, at its own expense, provided Aviron notifies PCI
                ninety 

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                (90) days in advance. In the event Aviron purchases such
                Materials itself, the price for Product shall be adjusted as set
                forth in Section 13.

        6.5     LABELS AND [ * ] PRODUCTION.

                (a)     Thirty (30) days prior to the intended date of
                        commencement of commercial production, Aviron shall
                        provide PCI with: (i) any particular Specifications it
                        may have with respect to labels and packaging materials
                        and (ii) camera-ready artwork for reproduction on the
                        labels, package inserts and packaging materials. Such
                        information shall include, but need not be limited to,
                        the quality, weight and color of the packaging materials
                        and labels, the type and colors of ink to be used in
                        printing the labels or packaging materials and any
                        special requirements for the labels or packaging for the
                        Product to be delivered to specific countries. The
                        method to assign lot numbers will be set forth in the
                        Specifications.

                (b)     PCI shall reproduce the artwork on the labels, packages
                        inserts and packaging materials and imprint the
                        appropriate lot number on each individual unit and each
                        carton of Product in accordance with the lot numbers
                        designated on the applicable purchase order. PCI shall
                        conduct all [ * ] Production in accordance with the
                        Specifications and the applicable purchase order (to the
                        extent not inconsistent with the Specifications).

                (c)     In the event that Aviron desires to change any label,
                        packaging insert or packaging Material for all or any
                        portion of the Product, Aviron shall supply PCI with new
                        camera-ready artwork and work with PCI to promptly
                        coordinate the use of such new artwork into [ * ]
                        Production process. In such event, Aviron shall purchase
                        from PCI, at a price equal to PCI's cost, all Materials
                        in PCI's inventory made obsolete by such changes.

        6.6     [ * ] PRODUCTION OF PRODUCT.

                (a)     PCI shall conduct [ * ] Production of the Vaccine in 
                        accordance with the Specifications and applicable 
                        federal, state and local laws and regulations
                        including, without limitation, cGMP. PCI shall notify
                        Aviron of any difficulty in meeting Specifications or
                        any deviation therefrom as soon as reasonably possible.
                        PCI shall not conduct [ * ] Production nor Store 
                        Materials or Product at any other location other than
                        the Facility without the prior written approval of
                        Aviron. Before, during and after [ * ] Production of 
                        each batch of Vaccine, PCI shall monitor the
                        Manufacturing environment and keep such records as all
                        of the foregoing are required by the Specifications and
                        cGMP. Both Parties shall promptly notify the other of
                        any new instructions or specifications required by the
                        FDA or the United States Federal Food, Drug and Cosmetic
                        Act, and of other applicable rules and regulations, and
                        shall confer with each other with respect to the best

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                                       7.
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                        means to comply with such requirements and shall [ * ]
                        of implementing such changes on an [ * ]

                (b)     The Parties agree that it is their intention to identify
                        ways in which to enhance efficiencies in the [ * ]
                        Production and the [ * ] Production and so reduce
                        production costs ("Cost Reduction Measures") In the
                        event PCI expends amounts in undertaking Cost Reduction
                        Measures, including, for example, the purchasing of
                        additional production equipment and provided such costs
                        are agreed upon in advance by the parties in writing,
                        Aviron shall reimburse PCI for such amounts. Any
                        additional equipment paid for by Aviron under this
                        Section 6.6(b) shall be deemed Aviron Equipment.

        6.7     PRODUCT SPECIFICATIONS; TESTING.

                (a)     The Parties agree and acknowledge that the
                        Specifications will be developed and defined by Aviron
                        after the Effective Date and following validation and
                        qualification, subject to input, review and approval by
                        PCI. Each Party agrees to act in good faith in defining
                        and finalizing the Specifications. Once finalized, the
                        Specifications will be appended to this Agreement as
                        Appendix 3. The Parties further agree and acknowledge
                        that the final piece price to be charged Aviron for the
                        Product under Section 13.1. can be determined only after
                        the final Specifications have been agreed upon. The
                        Parties acknowledge that, once agreed upon, the
                        Specifications set forth in Appendix 3 may need to be
                        refined and modified as the Parties gain experience with
                        [ * ] Production, testing and use of Product. 
                        Accordingly, the Parties agree to negotiate in good
                        faith to modify Appendix 3 from time to time as the
                        Parties' experience with Primary and Secondary
                        Production, testing and use of Product warrant; and PCI
                        further agrees that it will facilitate changes to
                        Appendix 3 that are necessary or appropriate in light of
                        FDA or other regulatory requirements. The Parties agree
                        to allocate on an equitable basis any special costs of
                        developing and implementing revised procedures.

                (b)     Product supplied hereunder will conform to the
                        Specifications, and such conformance will be verified in
                        accordance with the testing standards and procedures
                        specified therein. PCI will forward a sample of each
                        batch of Product to Aviron for testing and supply Aviron
                        with a certificate of analysis ("Certificate of
                        Analysis") confirming that such Product meets the
                        Specifications.

        6.8     FDA AND REGULATORY SUPPORT.

                (a)     PCI agrees to establish and maintain a Drug Master File
                        ("DMF") in accordance with the requirements of the FDA,
                        as well as any comparable files required by other
                        Agencies, and to provide Aviron with letters of access
                        to the DMF, any other comparable files and documents
                        regarding its [ * ] Production. Aviron shall have sole 

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                                       8.
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                        responsibility for obtaining from any
                        Agency all permits and/or licenses necessary or required
                        for the sale, marketing or commercialization of Product.
                        Aviron shall be responsible for all other filings
                        necessary for approval and import of Product into
                        countries outside the United States. PCI further agrees
                        to use reasonable commercial efforts to assist Aviron in
                        obtaining any government or Agency approval which may be
                        required for the marketing of Product in any country.
                        Aviron shall provide PCI with written notice of any
                        additional regulatory requirements of countries other
                        than the United States that relate to [ * ] Production 
                        of Product. PCI shall use its reasonable commercial
                        efforts to comply with such additional requirements and
                        shall provide Aviron with prompt written notice of
                        whether it is able to do so. PCI will provide Aviron
                        copies of all supporting documentation in PCI's
                        possession required for FDA licensing of the Product.
                        Aviron will hold the FDA and any other Agency license(s)
                        for the Product.

                (b)     Upon request, PCI shall allow the Aviron Area and the
                        Facility to be inspected by FDA or other Agency
                        officials. In the event that the Aviron Area is audited
                        or inspected by an Agency, PCI will provide Aviron with
                        prompt written notice of such audit. PCI will also
                        promptly provide Aviron with copies of any
                        correspondence or reports relating to such audit or
                        inspection.
    
        6.9     cGMP COMPLIANCE AND QA AUDITS. Within ten days of Aviron's
                written request, PCI shall supply Aviron with copies of PCI's
                manufacturing records, including its batch records, for the
                purposes of assuring product quality and compliance with the
                Specifications. Any found discrepancies, other than
                discrepancies resulting from directions received from Aviron or
                its representatives, will be reported to PCI and PCI will within
                30 days correct said discrepancies to Aviron's reasonable
                satisfaction. Failure to do so will give Aviron the right to
                terminate the Agreement pursuant to Section 10.5. Aviron's
                failure to exercise its right to audit PCI's Facility will not
                represent a waiver of any future exercise of this right or of
                any other rights under this Agreement, nor does it represent
                acceptance of any conditions past or present that might exist or
                result from such conditions at the Facility. Aviron acknowledges
                that all copies of PCI's manufacturing records shall be subject
                to the confidentiality provisions of Article 12.      

        6.10    COMPLIANCE WITH LAWS. PCI shall comply with all applicable
                present and future orders, regulations, requirements and laws of
                any and all applicable, federal, state, and local authorities
                and Agencies, including without limitation all laws and
                regulations of applicable to the transportation, storage, use,
                handling and disposal of hazardous materials. PCI represents and
                warrants to Aviron that it has and will maintain during the term
                of this Agreement all government permits, including without
                limitation health, safety and environmental permits, necessary
                for the conduct of the actions and procedures that it undertakes
                pursuant to this Agreement.

        6.11    DOCUMENTATION. PCI shall keep, for a period of [ * ], complete,
                accurate and authentic accounts, notes, data and records of the
                work performed 

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                                       9.
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                under this Agreement. Each Party shall maintain complete and
                adequate records pertaining to the methods and Facility used for
                [ * ] Production, testing, and distribution of Product in 
                accordance with the Specifications, cGMP, Michigan Agreement and
                other applicable laws and regulations.

        6.12    REWORK. PCI shall not rework any batch of Product without
                Aviron's prior written consent, which consent shall not be
                unreasonably withheld.

        6.13    SAMPLES. PCI shall retain quantities of samples of Product in
                accordance with cGMP. Within ten (10) days following Aviron's
                written request, PCI shall provide Aviron, at Aviron's expense,
                with up to one-half the original amount of the retained samples.

        6.14    STORAGE AND HANDLING. PCI shall Store and handle Materials,
                Syringes, Vaccine and Product as required by the Specifications.

        6.15    CORRECTIVE ACTION. In the event any Agency shall request or
                order, or if Aviron shall determine to undertake, any corrective
                action with respect to Products supplied hereunder, including
                any Product recall, customer notice, restriction, change,
                corrective action or market action, and the cause or basis for
                such corrective action results from the material breach by PCI
                of Section 5.8, then PCI shall replace and reship only the
                lot(s) of Products which are subject to such corrective action.
                PCI shall pay all costs incurred in replacing such Product,
                including the Vaccine, Syringes, Materials and shipping costs,
                subject to the limitations set forth in Section 9.2. Any costs
                resulting from corrective actions for any other cause, including
                but not limited to the Specifications or product tampering after
                the Products have been shipped from PCI's Facility, shall be the
                sole responsibility of Aviron. Aviron shall promptly notify PCI
                in writing upon the occurrence of any such corrective action
                (or, to the extent practicable, not less than ten days prior
                thereto).

7.      DELIVERY AND ACCEPTANCE OF FINISHED PRODUCT
        -------------------------------------------

        7.1     QUALITY CONTROL SAMPLE OF PRODUCT. Prior to the delivery of any
                batch of Product, PCI shall provide Aviron with (i) a quality
                control sample of such batch for the purpose of confirming that
                such batch meets the Specifications, (ii) a copy of the batch
                records for such batch, together with written confirmation that
                such batch records have been reviewed and approved by PCI's
                quality assurance unit and (iii) a Certificate of Analysis. The
                quality control sample shall consist of the number of individual
                Product units specified in the relevant purchase order delivered
                pursuant to Section 5.3 above. No delivery of Product shall be
                deemed to have been made until Aviron accepts or is deemed to
                have accepted the quality-control sample and associated
                documentation in accordance with the Specifications and Section
                7.3.

        7.2     DELIVERY OF PRODUCT. All deliveries shall be shipped [ * ],
                unless otherwise agreed upon by PCI and Aviron in a particular
                purchase order. [ * ] 

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                                      10.

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                shall be responsible for [ * ] and [ * ] and shall [ * ] of 
                [ *] of the Product [ * ] of [ * ] to [ * ].

        7.3     ACCEPTANCE AND REJECTION OF PRODUCT.

                (a)     Aviron may reject any quality control sample or batch
                        delivery which does not conform with the Specifications
                        or with applicable documentation or other requirements.
                        Any such notice of rejection shall be in writing and
                        shall indicate the reasons for such rejection.

                (b)     In order to reject or put on hold delivery of Product
                        based on testing of a quality control sample, Aviron
                        must give written notice to PCI of Aviron's rejection of
                        any delivery within (i) [ * ], or (ii) [ * ] after
                        receipt of the applicable quality control sample,
                        whichever is later (the "Acceptance Period"). If no such
                        notice of rejection/hold is received during such time
                        period, Aviron shall be deemed to have accepted such
                        quality control sample upon the expiration of the
                        Acceptance Period, and PCI shall be authorized to make
                        delivery of the Product.

                (c)     After notice of rejection/hold is given, Aviron shall
                        cooperate with PCI in determining whether rejection is
                        necessary or justified and, in situations in which the
                        type of damage so warrants, provide PCI with the
                        allegedly non-conforming Product for PCI evaluation. PCI
                        will evaluate the cause for such non-compliance. PCI
                        shall notify Aviron as promptly as reasonably possible
                        whether it accepts Aviron's basis for any rejection. If
                        PCI disagrees with Aviron's determination that certain
                        Product does not meet the Specifications, [ * ]. Whether
                        or not PCI accepts Aviron's basis for rejection,
                        promptly on receipt of a notice of rejection/hold of
                        Product, PCI shall use reasonable commercial efforts at
                        Aviron's request to replace such rejected Product. [ * ]
                        shall bear the expenses of such replacement. If [ * ],
                        Aviron guarantees to purchase that Product and any
                        replacement Product which PCI has delivered to Aviron at
                        the price set forth in Section 13.1. [ * ].

        7.4     DESTRUCTION OF PRODUCT. Neither Party may destroy any Product
                alleged not to meet Specifications until [ * ]. Thereafter, upon
                Aviron's written request, PCI shall return to Aviron or promptly
                destroy any rejected Product. The Party determined [ * ] 

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                                      11.
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                [ * ] shall bear all costs for such return or destruction. In
                the event PCI destroys such Product, PCI shall provide Aviron
                with certification of such destruction.

        7.5     REPLACEMENT PRODUCT. In the event that PCI bears responsibility
                for the failure of Product, promptly following the rejection of
                any Product, Aviron shall, at PCI's expense, deliver sufficient
                quantities of Vaccine and Syringes to the Facility in order for
                PCI to comply with Section 7.3(c). In accordance with the terms
                of Section 6.6 and 6.7, PCI shall Manufacture enough Product to
                deliver to Aviron the amount of Product originally ordered for
                the rejected delivery and shall do so as promptly as technically
                feasible.

8.      REPRESENTATIONS AND WARRANTIES
        ------------------------------

        8.1     EXISTENCE AND POWER. Each Party hereby represents and warrants
                to the other Party that such Party (i) is duly organized,
                validly existing and in good standing under the laws of the
                state in which it is organized, (ii) has the power and authority
                and the legal right to own and operate its property and assets,
                and to carry on its business as it is now being conducted, and
                (iii) is in compliance with all requirements of applicable law,
                except to the extent that any noncompliance would not materially
                adversely affect such party's ability to perform its obligations
                under the Agreement.

        8.2     AUTHORIZATION AND ENFORCEMENT OF OBLIGATIONS. Each Party hereby
                represents and warrants to the other Party that such Party (i)
                has the power and authority and the legal right to enter into
                the Agreement and to perform its obligations hereunder and
                thereunder and (ii) has taken all necessary action on its part
                to authorize the execution and delivery of the Agreement and the
                performance of its obligations hereunder. The Agreement has been
                duly executed and delivered on behalf of such Party, and
                constitutes a legal, valid, binding obligation, enforceable
                against such Party in accordance with its terms.

        8.3     NO CONSENTS. Each Party hereby represents and warrants to the
                other Party that all necessary consents, approvals and
                authorizations of all Agencies and other persons required to be
                obtained by such Party in connection with the Agreement have
                been obtained.

        8.4     NO CONFLICT. Each Party hereby represents and warrants to the
                other Party that the execution and delivery of the Agreement and
                the performance of such party's obligations hereunder and
                thereunder (i) does not conflict with or violate any requirement
                of applicable laws or regulations or any material contractual
                obligation of such Party and (ii) does not materially conflict
                with, or constitute a material default or require any consent
                under, any material contractual obligation of such Party.

        8.5     NON-DEBARMENT. PCI represents and warrants that PCI is not and
                does not, to the best of its knowledge, use in any capacity the
                services of any person barred by an applicable Agency
                (including, but not limited to, the FDA) from providing such
                services. PCI covenants it will not in the performance of its
                obligations 

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                                      12.
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                hereunder use in any capacity the services of any person that it
                knows is barred by an applicable Agency and will immediately
                disclose in writing to Aviron promptly, before it becomes aware
                of any person who is performing services hereunder is so barred
                or if any action, suit, claim, investigation or legal or
                administrative proceeding is pending or, to the best of PCI's
                knowledge, threatened, relating to the debarment of PCI or any
                person performing services hereunder by any applicable Agency.

9.      INDEMNIFICATION
        ---------------

        9.1     INDEMNITY. 
    
                (a)     Except to the extent that claims, suits, losses,
                        damages, costs, fees or expenses arise or result from
                        any negligent or wrongful act or omission of PCI or
                        PCI's breach of Section 5.8, Article 8, or Article 15,
                        Aviron agrees to indemnify, hold harmless and defend PCI
                        and PCI's directors, officers, employees and agents, and
                        the directors, officers, employees and agents of any PCI
                        parent, subsidiary or related company (the "PCI
                        Indemnitees") from and against any and all claims,
                        suits, losses, damages, costs, fees and expenses
                        resulting from or arising out of the development,
                        creation, sale, distribution, possession or use of
                        Product by any person, or asserted by or on behalf of
                        [*] against the PCI Indemnitees, including without
                        limiting the generality of the foregoing any damages,
                        losses or liabilities whatsoever with respect to death
                        or injury to person or damage to property.      

                (b)     To the extent that such claims, suits, losses, damages,
                        costs, fees or expenses arise or result from any
                        negligent or wrongful act or omission of PCI or the
                        breach by PCI of Section 5.8, Article 8 or Article 15,
                        PCI agrees to indemnify, hold harmless and defend Aviron
                        and Aviron's directors, officers, employees and agents,
                        and the directors, officers, employees and agents of any
                        Aviron parent, subsidiary or related company (the
                        "Aviron Indemnitees") from and against any and all
                        claims, suits, losses, damages, costs, fees and expenses
                        resulting from or arising out of [ * ], including
                        without limiting the generality of the foregoing any
                        damages, losses or liabilities whatsoever with respect
                        to death or injury to person or damage to property.
    
        9.2     LIMITATION OF LIABILITY.      
    
                (a)     Notwithstanding anything to the contrary in this
                        Agreement, PCI's liability (individually or in the
                        aggregate) under this Agreement or in any manner arising
                        out of this Agreement or its Manufacture, Storage, use
                        or handling of the Product shall be limited as set forth
                        in this Section 9.2(a) and Section 9.2(b). PCI's
                        liability shall not exceed the lesser of (i) the sum of
                        the [*] of this Agreement, plus the [*] during the
                        twelve (12) months immediately preceding the event which
                        resulted in such liability; and (ii) either (A) [*]
                        where the liability results from a claim arising out of
                        or resulting from [*] or a reason other than PCI's
                        negligence in conducting the [*] and (B) [*] where the
                        liability results from a claim arising out of or
                        resulting from PCI's negligence in the conduct of the
                        [*] (including storage of the Product).     

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                                      13.
<PAGE>
 
                                 
    
                (b)     In the case where two claims are made, one based upon
                        the [ * ] Production (or upon other than negligence in
                        PCI's conduct of the [ * ] Production) and another based
                        upon PCI's negligence in the conduct of the [ * ]
                        Production, whether contemporaneously or serially, the
                        limitation on aggregate liability under this Agreement
                        shall be the lesser of (i) the sum of the [*] of this
                        Agreement, plus the [*] during the twelve (12) months
                        immediately preceding each of the two events which
                        resulted in such liability; and (ii) [*].      

                (c)     IN NO EVENT SHALL EITHER AVIRON OR PCI BE LIABLE TO THE
                        OTHER FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL LOSS,
                        DAMAGE, COSTS OR EXPENSES OF ANY NATURE WHATSOEVER,
                        INCLUDING, WITHOUT LIMITATION, LOST REVENUES OR PROFITS.

        9.3     NOTICE AND PAYMENT.

                (a)     Promptly after acquiring knowledge of any damage, loss,
                        deficiency, liability, encumbrances, penalty, cost,
                        expense, action, suit, investigation, proceeding,
                        assessment, audit, judgment, or claim against which
                        Aviron or PCI must indemnify the other pursuant to
                        Section 9.1 (the "Indemnifying Party"), the Indemnified
                        Party shall give to the Indemnifying Party written
                        notice thereof, specifying the nature of the claim for
                        indemnity (the "Claim Notice"); provided, however, that
                        the delay or failure to give a Claim Notice shall not be
                        a bar to indemnification hereunder, except and to the
                        extent that the indemnifying Party is materially
                        prejudiced by the delay or failure to give such Claim
                        Notice.

                (b)     With respect to any claim, action, suit, investigation,
                        proceedings, demand, assessment or audit brought by a
                        Third Party ("Third Party Matter"), the Indemnifying
                        Party shall have the right, at its own expense, to
                        contest and defend against or attempt to settle or
                        compromise (subject to the limitations set forth below),
                        such Third Party Matter and any damages, losses,
                        deficiencies, liabilities, encumbrances, penalties,
                        costs, expenses and assessments ("Damages") resulting
                        therefrom. If the Indemnifying Party so elects, such
                        defense shall be instituted promptly and the
                        Indemnifying Party shall receive from the Indemnified
                        Party all necessary and reasonable cooperation in said
                        defense. If the 

[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.


                                      14.
<PAGE>
 
                        Indemnifying Party is successful in respect of any
                        counterclaim asserted by it in defending a Third Party
                        Matter, any sums recovered shall first be applied to
                        reimburse the Indemnifying Party for its reasonable out-
                        of-pocket expenses in connection therewith, and any sums
                        in excess of such amount shall be paid to the
                        Indemnified Party.

                (c)     In the event that an Indemnifying Party, after written
                        notice from the Indemnified Party, elects not to defend
                        the same or fails to so notify the Indemnified Party
                        within thirty (30) days of the giving of the Claim
                        Notice, the Indemnifying Party shall be deemed to have
                        elected not to defend and if the Indemnified Party
                        elects to contest and defend against such claim, it
                        shall have the right to do so with counsel of its own
                        choosing, at the cost and expense of the Indemnifying
                        Party.

                (d)     Neither the Indemnified Party nor the Indemnifying Party
                        shall have the right to settle, compromise or make
                        payment with respect to any claim, demand, or litigation
                        without the written consent of the other party, except
                        that the Indemnified Party shall have the right to
                        settle, compromise or make payment with respect to any
                        claim, demand, or litigation against it without such
                        consent if it has given a Claim Notice to the
                        Indemnifying Party, and (i) the Indemnifying Party has
                        elected, or shall be deemed to have elected, not to
                        defend the same or (ii) the Indemnifying Party fails to
                        promptly attempt to settle or compromise the claim.
    
        9.4     PCI INSURANCE. Throughout the term of this Agreement and for
                five (5) years thereafter, PCI shall maintain the following
                minimum insurance coverage with insurance carriers reasonably
                acceptable to Aviron:      
    
                (a)     Comprehensive General Liability in the amount of at
                        least five million dollars ($5,000,000) combined single
                        limit, including contractual coverage for bodily injury
                        and property damage, which shall name Aviron as an
                        additional insured and may not be canceled by PCI or its
                        insurer without, ten (10) days prior written notice to
                        Aviron; and      

                (b)     Worker's Compensation Insurance to the full extent
                        required by applicable state law.
    
        9.5     AVIRON INSURANCE. Aviron shall purchase and maintain, during the
                term of this Agreement and for a period of five (5) years
                thereafter, at its own cost, liability insurance coverage in an
                amount of at least five million dollars ($5,000,000) and
                worker's compensation insurance coverage in amounts required
                pursuant to applicable state laws, from an insurer reasonably
                acceptable to PCI to cover liabilities which may arise under
                this Agreement, which insurance shall name PCI as an additional
                insured and may not be canceled by Aviron or its insurer without
                ten (10) days prior written notice to PCI.      
        

                                      15.
<PAGE>
 
10.     TERM AND TERMINATION
        --------------------

        10.1    Unless earlier terminated as provided herein, the term of this
                Agreement is seven (7) years and shall begin on October 31, 1997
                and shall continue through October 31, 2004. The term of this
                Agreement may be extended by the mutual written agreement of the
                Parties.
    
        10.2    Aviron may terminate this Agreement at any time upon twelve (12)
                months prior written notice to PCI; provided, however that in
                the event that Aviron terminates because it desires to undertake
                [ * ] at Aviron's own facility, Aviron shall provide PCI with
                twenty-four (24) months prior written notice of termination of
                this Agreement.     
    
        10.3    Any time following September 30, 2002, PCI may deliver to Aviron
                written notice of PCI's intention to terminate this Agreement
                and not to renew, such termination to be effective twenty-four
                (24) months following receipt of such notice.      

        10.4    Either Party shall have the right to immediately terminate this
                Agreement if the other Party files a petition in bankruptcy, or
                enters into an agreement with its creditors, or applies for or
                consents to the appointment of a receiver or trustee, or makes
                an assignment for the benefit of creditors, or suffers or
                permits the entry of an order adjudicating it to be bankrupt or
                insolvent, provided that such bankruptcy is not discharged
                within thirty (30) days.
    
        10.5    If either Party materially breaches any of the provisions of
                this Agreement and such breach is not cured within thirty (30) 
                days after the giving of written notice, the Party claiming the
                breach shall have the right to terminate this Agreement.      

        10.6    Either Party may terminate this Agreement upon ninety (90) days
                written notice and without penalty in the event of failure to
                obtain FDA approval for the Product in the United States or any
                license, permit or certificate required by any governmental or
                regulatory agency is not approved and/or issued by any
                applicable Agency, provided that such other party may no longer
                appeal such decision, reapply or otherwise pursue such permit,
                license or certificate.
    
        10.7    In the event of expiration or termination of this Agreement, (i)
                Aviron shall pay for all completed Product whether or not Aviron
                takes delivery of such Product, (ii) Aviron shall bear no
                responsibility for the payment of any [*] not completed prior to
                termination of this Agreement, (iii) PCI shall promptly, at
                Aviron's request and expense, destroy or return to a location to
                be specified by Aviron, any remaining inventory of Vaccine,
                Syringes, Materials and Product to Aviron, unless such
                termination shall have been as a result of termination or a
                breach of this Agreement by PCI, in which case such Vaccine,
                Syringes and Materials shall be returned or destroyed at PCI's
                expense, and Aviron shall reimburse PCI for the cost of all
                Materials so returned, (iv) each Party shall promptly return all
                Proprietary Information (as described in Article 12) to the
                disclosing Party, and (v) Aviron shall remove the Aviron
                Production Equipment from the Aviron Area in accordance with the
                Facility Reservation Agreement. If Aviron fails to remove the
                Aviron Production Equipment and make such repairs, PCI may do
                so, and Aviron shall, within 10 days after receipt of evidence
                thereof, reimburse PCI in full for all reasonable expenses
                incurred by PCI in connection with such removal and restoration.
     

[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS. 


                                      16.
<PAGE>

          
        10.8    Termination of this Agreement shall not affect any rights or
                claims of either Party that accrued prior to the date of such
                termination. The rights and obligations of each of the Parties
                under the provisions of Sections 6.8, 6.9, 6.11, 6.13, 6.15,
                10.7, 10.8, 13.3, and Articles 9, 11 and 12 shall survive the
                termination or expiration of this Agreement for any reason.

        10.9    Upon termination of this Agreement, the Facility Reservation
                Agreement shall terminate, and the consequences of such
                termination shall be as set forth in Section 10 of that
                agreement.

11.     DISPUTE RESOLUTION
        ------------------

        11.1    Any controversy, claim, or dispute (the "Dispute") between the
                Parties arising out of or relating to this Agreement, or the
                breach thereof, shall be submitted to the chief executive
                officer of PCI and the Chief Executive Officer of Aviron for
                twenty (20) days for resolution. If the Dispute has not been
                resolved in such period, the Dispute shall be resolved through
                arbitration before three (3) arbitrators. Such arbitration shall
                take place in Philadelphia and shall proceed in accordance with
                the Commercial Arbitration Rules of the American Arbitration
                Association (Commercial Rules) and the laws of Pennsylvania
                without regard to the provisions thereof concerning conflict of
                laws. Within thirty (30) calendar days of either Party making a
                demand for arbitration, Aviron and PCI shall each select one (1)
                arbitrator. A third arbitrator shall be selected by the
                arbitrators selected by the Parties within ninety (90) days of
                the demand for arbitration. In the event that either Party shall
                fail to appoint its arbitrator, or the two arbitrators selected
                by the Parties fail to appoint the third arbitrator, in either
                case within the prescribed time period, then either Party may
                apply to the American Arbitration Association for the
                appointment of such arbitrator. The determination of a majority
                of the panel of arbitrators shall be the decision of the
                arbitrators and shall be binding regardless of whether one of
                the Parties fails or refuses to participate in the arbitration;
                said determination shall be enforceable by any court of
                competent jurisdiction. Each Party shall [ * ] for the
                arbitrator it selects with the cost of the third arbitrator
                being divided equally between the Parties. All other costs
                related to the arbitration shall be borne by the Party incurring
                such costs, unless otherwise agreed to by the Parties.
 
12.     CONFIDENTIALITY
        ---------------

        12.1    DEFINITION. As used in this Agreement, the term "Proprietary
                Information" shall mean any information, either enabling or
                disabling, including the terms of this Agreement, any batch
                record, any purchase order or other commercial relationship
                between the Parties, know-how, trade secrets, research, data,
                process, technique, algorithm, program, design, drawing,
                formula, experimental design or test data relating to any
                research project, work in process, future development,
                scientific, manufacturing, marketing, business plan, financial
                or 

[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.


                                      17.
<PAGE>
 
                personnel matter relating to the disclosing Party (the
                "Disclosing Party"), its present or future products, sales,
                suppliers, customers, employees, investors or business, whether
                in oral, written, graphic or electronic form and whether
                received from the Disclosing Party or a third party. The term
                "Proprietary Information" shall include, without limitation, (i)
                any cost information related to the manufacture of Product, and
                (iii) the Specifications for Product, each of which has
                previously been disclosed to PCI.

        12.2    OBLIGATION. During the term of this Agreement and for a period
                of [ * ] thereafter, the receiving Party (the "Receiving Party")
                shall maintain in confidence all Proprietary Information, as
                defined in Section 12.1 above, and shall not use, disclose or
                grant use of such Proprietary Information except as expressly
                authorized by this Agreement. The Receiving Party may disclose
                Proprietary Information, as authorized hereunder, only to those
                employees, agents or consultants of the Receiving Party
                reasonably requiring access. The Receiving Party shall use the
                standard of care which is practical to ensure that such
                employees do not disclose or make any unauthorized use of
                Proprietary Information. The Receiving Party shall promptly
                notify the Disclosing Party upon discovery of any unauthorized
                use of disclosure of Proprietary Information.

        12.3    EXCLUSIONS. The term "Proprietary Information" shall not be
                deemed to include information which the Receiving Party can
                demonstrate by competent written proof (i) is now, or hereafter
                becomes, through no act or failure to act on the part of the
                Receiving Party, generally known or available, (ii) is known by
                the Receiving Party at the time of receiving such information as
                evidenced by its records, (iii) is hereafter furnished to the
                Receiving Party by a third party, as a matter of right and
                without restriction on disclosure, or (iv) is the subject of a
                written permission to disclose provided by the Disclosing Party.
                Further, the obligations of confidentiality under this Article
                12 shall not apply to the extent that the Receiving Party is
                required to disclose Proprietary Information in support of
                applying for, obtaining or maintaining a product approval or
                other filings with, by an order or regulation of, an Agency or
                in the course of litigation or other legal or administrative
                proceedings, provided that in all cases the Receiving Party
                shall to the extent permitted give the other Party prompt notice
                of the pending disclosure and shall cooperate in such other
                party's attempts, at such other party's sole expense, to seek an
                order maintaining the confidentiality of the Proprietary
                Information.

13.     FEES & PAYMENT TERMS
        --------------------

        13.1    PRODUCT PRICING.

                (a)     The definitive piece price per unit of Product shall be
                        comprised of the following components: (i) [ * ]; (ii)
                        [ * ] and (iii) [ * ]

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                                      18.
<PAGE>
 
                        [ * ]. An example of the pricing for 20 million units of
                        Product, incorporating the price components set forth
                        above, is set forth on Appendix 5. In the event Aviron
                        purchases itself any Materials, the Materials Unit Cost
                        attributable to such Materials shall be deducted from
                        the price per unit charged by PCI. The Parties agree
                        that where the number of units manufactured in a twelve
                        (12) month period is less than 5 million, the [ * ]
                        shall be at a rate mutually agreed upon by the Parties
                        at such time.

                (b)     The Parties agree and acknowledge that the [ * ] Rate,
                        the [ * ] and the [ * ] shall remain in effect with
                        respect to all Product ordered and shipped prior to 
                        [ * ]. After such date such cost factors are subject to
                        annual upward or downward adjustment in accordance with
                        the Product Price Index for Pharmaceutical preparations,
                        S.I.C. Code Number 2834.

                (c)     The price for Product shall be invoiced to Aviron within
                        [ * ] after completion of the [ * ] of such Product, net
                        [ * ]. In the event Aviron rejects Product pursuant to
                        Section 7.3, any such amount paid by Aviron for such
                        rejected Product shall be credited to Aviron's account
                        immediately.

        13.2    All amounts due hereunder shall be paid to PCI in U.S. dollars
                by check or wire transfer per PCI's instructions. Failure by
                Aviron to make a payment when due shall be deemed to be a
                material breach for purposes of Section 10.5.

        13.3    PCI shall keep accurate records in sufficient detail to permit
                the determination of all invoices and fees payable, credits due,
                and units of Product packaged hereunder and, within ten (10)
                days following a request by Aviron shall permit either Aviron or
                its agents, to examine during ordinary business hours such
                records for the purpose of verifying the correctness of any such
                invoices, fees, credits and units.

        13.4    The cost of employee training on the Parties' Production
                Equipment, as defined and determined by [ * ], during the
                validation phase will be charged to [ * ] at a rate of $[ * ]
                per hour up to a total number of hours to be agreed upon by the
                Parties. After [ * ] begins, on-going employee training will be
                at [ * ] expense.

14.     GENERAL
        -------

        14.1    INTERPRETATION. The construction, validity, and performance of
                this Agreement shall be governed in all respects by the laws of
                Pennsylvania, exclusive of its conflict-of-law provisions. This
                Agreement was negotiated by sophisticated parties at arms'
                length and neither party shall be construed as the drafting
                party against which the Agreement could be construed.

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                                      19.
<PAGE>
 
        14.2    FORCE MAJEURE. Failure or omission by either Party hereto in the
                performance of any obligation of this Agreement (other than
                obligations to pay amounts due hereunder) shall not be deemed a
                breach of this Agreement and shall not create any liability if
                the same shall arise from any cause or causes beyond the
                reasonable control of such Party, including, but not limited to,
                (other than the failure or refusal of the FDA to approve the
                Product for sale), fire, storm, flood, earthquake, accident,
                acts of the public enemy, war, rebellion, insurrection, riot,
                and invasion. In the event of Force Majeure, the Party affected
                shall promptly notify the other Party, and shall use reasonable
                commercial efforts to eliminate, cure or overcome such event and
                to resume performance of its obligation hereunder.
                Notwithstanding the foregoing, should any event of force majeure
                as defined above prevent the Parties from performing the
                Agreement for a period exceeding three (3) months, the non-
                affected Party shall have the right to terminate this Agreement
                without further notice. It is expressly agreed by the Parties
                that strikes, lockouts and other labor problems shall not be
                deemed incidences of Force Majeure.

        14.3    NOTICES. Any notice or consent required to be given by either
                Party shall be given in writing addressed to the Party for whom
                it is intended at the address set forth in the preamble to this
                Agreement, or such other address as such Party may designate in
                writing, and sent by overnight courier or certified mail, return
                receipt requested, or confirmed facsimile. Such facsimile to be
                sent to (215) 281-9190 in the case of PCI and (650) 919-6610 in
                the case of Aviron.

        14.4    WAIVER. The failure on the part of any Party to exercise or
                enforce any rights conferred upon it hereunder shall not be
                deemed to be a waiver of any such rights nor operate to bar the
                exercise or enforcement thereof at any time or times thereafter.

        14.5    ASSIGNABILITY. Neither Party may assign this Agreement or any
                rights granted hereunder in whole or in part (other than a
                transaction involving or between PCI and Cardinal Health, Inc.
                or other subsidiaries or divisions of Cardinal Health, Inc.,
                provided such assignee is an Affiliate of Cardinal Health, Inc.)
                without the prior written consent of the other Party, except
                either Party may assign this Agreement in whole or in part to
                one of its Affiliates or to the successor(s) to or assignee(s)
                of all or substantially all of the part of its business to which
                this Agreement relates. The Parties agree that any change of
                ownership or control of either Aviron or PCI shall not affect
                the Parties' rights and obligations under this Agreement.
 
        14.6    ENTIRE AGREEMENT. This Agreement and the Schedules, Exhibits and
                Appendices hereto, constitute the entire agreement between the
                Parties concerning the subject matter hereof and supersede all
                prior agreements or understandings whether written or oral
                between the Parties with respect to the subject matter hereof.

        14.7    TITLES. The headings appearing at the beginning of the numbered
                Articles hereof have been inserted for convenience only and do
                not constitute any part of this Agreement.


                                      20.



<PAGE>
 
        14.8    PUBLICITY AND PRESS RELEASES. Except to the extent necessary
                under applicable laws, each Party agrees that no press releases
                or other publicity relating to the existence or substance of the
                matters contained herein will be made without the other Party's
                prior written approval; provided, however, that any press
                release containing information released in a prior release
                approved of by the Parties shall require no additional consent.

        14.9    RELATIONSHIP OF THE PARTIES. Notwithstanding any provision
                hereof, for all purposes of this Agreement each Party shall be
                and act as an independent contractor and not as partner, joint
                venture, or agent of the other and shall not bind nor attempt to
                bind the other to any contract.

        14.10   MODIFICATIONS. No changes or modifications or waivers are to be
                made to this Agreement unless evidenced in writing and signed
                for and on behalf of both Parties.

        14.11   SEVERABILITY. In the event that any provision of this Agreement
                shall be determined to be illegal or unenforceable, that
                provision will be limited or eliminated to the minimum extent
                necessary so that this Agreement shall otherwise remain in full
                force and effect and enforceable.

15.     MICHIGAN LICENSE
        ----------------
        
        15.1    PCI accepts:

                (a)     The Vaccine may be used only for the Manufacture of 
                        Product; and

                (b)     Except as set forth in this Agreement, PCI shall not
                        provide any Vaccine or derivatives thereof to any third
                        party. PCI shall limit access to the Vaccine supplied by
                        Aviron to those employees reasonably requiring such
                        access for [*], which employees are governed by PCI's
                        customary confidentiality obligations.

        15.2    Aviron shall:

                (a)     use every reasonable effort to honor and observe its
                        obligations under the Michigan Agreement and shall not
                        act or fail to act in any way which might jeopardize or
                        cause to be terminated the Michigan Agreement; and,

                (b)     promptly notify PCI of any amendment to the Michigan
                        Agreement that affects PCI's performance under this
                        Agreement; and, 

                (c)     make every reasonable effort to notify PCI in writing of
                        the expiration or termination of the Michigan Agreement
                        at least six weeks prior to either event.

        15.3    PCI will use every reasonable effort to conduct [*] and to Store
                the Vaccine and Product in accordance with all applicable
                government laws and regulations.

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THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
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                                      21.
<PAGE>
 
        15.4    Aviron, on Michigan's behalf, may request from PCI at reasonable
                times and in reasonable quantities at a cost equal to PCI's cost
                for production of Product as it may desire, provided that PCI
                shall be under no obligation under this sub-clause or otherwise
                to produce extra batches of Product solely or substantially to
                meet Michigan's requirements. Any requirements of Michigan shall
                be supplied from Product being produced for Aviron with Aviron
                being solely responsible for apportioning such part thereof to
                Michigan as Aviron sees fit. Aviron shall promptly pay to PCI
                the difference between the cost of Product supplied to Michigan
                hereunder and the price of Product as set forth in Section 13.1.

        15.5    PCI acknowledges Michigan's warranty disclaimer and limitation
                of liability contained in the Michigan Agreement but makes no
                assessment or admission of its validity or reasonableness.
                Notwithstanding such, PCI will not make any statements,
                representations or warranties inconsistent with such warranty
                disclaimer or limitation of liability other than in pursuance or
                prosecution of its own rights and remedies.

        15.6    PCI will indemnify Michigan, its fellows, officers, employees
                and agents for and against any and all claims, damages, losses
                and expenses of any nature resulting from, but not limited to,
                death, personal injury, illness or property damage, arising
                directly and solely as a result of;

                (a)     any Manufacture, use or other disposition by PCI of the
                        Vaccine or Product; 

                (b)     the use by PCI, its agents or employees of Vaccine or
                        Product made or used by PCI;

                (c)     the use, handling, storage or disposal of Vaccine, any
                        derivatives or Product by PCI; or

                (d)     the unauthorized and negligent use by PCI of any know-
                        how, or technical data sub-licensed to Aviron from
                        Michigan (and of which know-how and technical data
                        Aviron has expressly notified PCI as being sub-licensed
                        to Aviron by Michigan) or developed by PCI pursuant to
                        the Manufacture, where but only where such claims,
                        damages, losses and expenses are a direct consequence of
                        the negligence of PCI, its agents or employees.
 
        15.7    PCI shall not use the name of Michigan in publicity or
                advertising concerning the Product or the Vaccine without the
                prior written consent of Michigan, such consent not to be
                unreasonably or arbitrarily withheld nor delayed. Reports in
                scientific literature and presentations of joint research and
                development work are not considered publicity for the purpose of
                this clause.


                                      22.
<PAGE>
 
                IN WITNESS WHEREOF, the Parties hereto have caused this
Agreement to be executed by their respective duly authorized officers or
representatives as of the day and year first above written.

PACKAGING COORDINATORS, INC.            AVIRON


By: /s/ Dan Gerner                      By:  /s/ J. Leighton Read, M.D.
   -------------------------------         --------------------------------

    
Name:   Dan Gerner                      Name:   J. Leighton Read, M.D.     
     -----------------------------           -------------------------------

                                                Chairman and
Title:  President                       Title:  Chief Executive Officer
      ----------------------------            -------------------------------
 


                                      23.
<PAGE>
 
                                  APPENDIX 1
                                  ----------

                          Aviron Production Equipment
                          ---------------------------


                             Master Equipment List

                      ID #       Equipment        Vendor

                 [    *     ]  [    *     ]    [    *     ]

                                      
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THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.



 

                                      24.
<PAGE>
 
                                  APPENDIX 2
                                  ----------

                           PCI Production Equipment
                           ------------------------

             ====================================================
             Function                                Manufacturer
             ----------------------------------------------------
                   *                                      *
             [___________]                          [___________]
             ====================================================

      *
[___________]


[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY 
WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO 
THE OMITTED PORTIONS.

 

                                      25.
<PAGE>
 
                                  APPENDIX 3
                                  ----------

                                Specifications
                                --------------

                             (INTENTIONALLY BLANK)

 

                                      26.
<PAGE>
 
                                  APPENDIX 4
                                  ----------

                        Facility Reservation Agreement
                        ------------------------------

                               See Exhibit 10.17



                                      27.

<PAGE>
 
                                  APPENDIX 5
                                  ----------


                            AVIRON PROJECT PRICING
                                  APPENDIX 5

All prices shown are per syringe when packaged two (2) syringes per carton.
All production rates are based on an average of [*] syringes per hour.

[*] Production------------------

[*] Production labor rate of [*]. PCI and Aviron
will develop a [*] labor reporting system. [*] costs will be billed upon [*].

[*] 
- -------------------
<TABLE> 
<CAPTION> 
====================================================================================================================================
                                                                           Target Price                 
                                           Reduction                           [*]                         Increase
                                           Potential                         Syringes                      Potential
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                   <C>                                                      <C>    <C> 
[*]                   Subtract [*] for each [*] decrease in material cost      [*]    Add [*] for each [*] increase in material cost

[*]                   Subtract [*] for each [*] decrease in material cost      [*]    Add [*] for each [*] increase in material cost

[*]                   Subtract [*] for each [*] decrease in material cost      [*]    Add [*] for each [*] increase in material cost

[*]                   Subtract [*] for each [*] decrease in material cost      [*]    Add [*] for each [*] increase in material cost

[*]                   Subtract [*] for each [*] decrease in material cost      [*]    Add [*] for each [*] increase in material cost

Shift crew size       Subtract [*] for each person less than [*]               [*]    Add [*] for each additional person over [*] 
for [*] is
[*] people 
- ------------------------------------------------------------------------------------------------------------------------------------
   Secondary Total:   [*]                                                      [*]    [*]
====================================================================================================================================


NOTE: REDUCTION/INCREASE POTENTIAL FOR [*] TOTALS SHOW EFFECT OF ALL ITEMS
CHANGING. THE LIKELIHOOD OF THIS HAPPENING IS REMOTE. FINAL PRICE IS LIKELY TO
BE A BLENDED COMBINATION.
</TABLE> 

[*]= CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY
WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO
THE OMITTED PORTIONS.

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