VaxGen Provides Updates and Encourages Stockholders to Vote In Favor of Proposed Merger ...( Only 7 Days Remain to Vo...),Health

Only 7 Days Remain to Vote on the Proposed Merger

SOUTH SAN FRANCISCO, Calif., March 20 /PRNewswire-FirstCall/ -- VaxGen Inc. (OTC Bulletin Board: VXGN)

Dear VaxGen Stockholder,

March 28th marks the date of the Special Stockholder meeting and the conclusion of the VaxGen stockholder vote on the proposed VaxGen-Raven merger. Your vote is important. An affirmative vote of the holders of a majority of the votes cast in person or by proxy at the VaxGen special meeting is required for approval of the merger. Even if you plan to attend the meeting in person, we request that you sign and return your proxy card as soon as possible to ensure that your shares will be represented at the special meeting if you are unable to attend.

(Logo: http://www.newscom.com/cgi-bin/prnh/19991112/VAXGENLOGO)

The Board and Management of VaxGen are enthusiastic about the potential of the combined company and the opportunity to enhance shareholder value, and we strongly encourage stockholders to approve the merger.

Nearly 15 months ago we announced a goal to rebuild shareholder value by addressing compliance, accounting, re-listing and strategic issues in light of the termination of the anthrax vaccine contracts. We have directed our energies and resources on behalf of our stockholders to accomplish these stated goals and believe we have made clear progress on all fronts.

VaxGen has addressed all outstanding accounting issues and became current with its financial reporting as of November 2007. Quotation of VaxGen stock on the OTC Bulletin Board was initiated on March 14th, which is expected to provide improved liquidity for stockholders as well as satisfying a closing condition for the merger. On March 18th, VaxGen filed its current Form 10-K, making available its audited financial statements for the year ending December 31, 2007. Most importantly,
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