VaxGen Reports Financial Update(for more information aboutRaven biotechn...)

Note: This press release contains "forward-looking statements" within the meaning of the federal securities laws. These forward-looking statements include, without limitation, the benefits of the proposed merger, the business potential of the combined company as well as any potential non-cash impairment charge related to VaxGen's facility. These statements are subject to risks and uncertainties that could cause actual results and events to differ materially from those anticipated. Additional information concerning these and other risk factors is contained in VaxGen's Annual Report on Form 10-K for the year ended December 31, 2006, the most recently filed Quarterly Report on Form10-Q and the Form S-4 filed on February 6, 2008. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date of this release. VaxGen and Raven undertake no obligation to update publicly any forward-looking statements to reflect new information, events, or circumstances after the date of this release except as required by law.

Additional Information and Where to Find It

VaxGen has filed a registration statement on Form S-4, and a related proxy statement/prospectus, in connection with the merger. Investors and security holders are urged to read the registration statement on Form S-4 and the related proxy statement/prospectus because they will contain important information about the merger transaction. Investors and security holders may obtain free copies of these documents (when they are available) and other documents filed with the SEC at the SEC's web site at http://www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by contacting VaxGen Investor Relations at the email address: ir@vaxgen.com.

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