A Company spokesperson indicates the information was taken out of context and did not reflect the present condition of SIGA. In addition, the news contained a factual inaccuracy. Further, the spokesperson recommends the report, filed with the SEC on Form 10-QSB on May 15, 2003, should be read in its entirety along with the company's other filings and reports to the SEC which are readily available. About SIGA Technologies, Inc.

SIGA Technologies is applying bacterial genomics in the design and development of novel products for the prevention and treatment of serious infectious diseases, with an emphasis on products for biological warfare defense. With broad technology platforms in both vaccines and anti-infectives, SIGA's product development programs emphasize the increasingly serious problem of drug resistant bacteria. SIGA's vaccine and drugs and anti-infective platforms are based on its pioneering research into the structure, function and processing of bacterial surface proteins. SIGA is leveraging these platforms through multiple strategic partners, including Wyeth-Ayerst Laboratories (the pharmaceutical division of American Home Products) and the National Institutes of Health.

This news release contains certain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements, including statements regarding the efficacy and intended utilization of SIGA's technologies under development and to be acquired, are not guarantees of future performance. Actual results may differ materially from the expectations contained in the forward-looking statements. Factors which may cause such differences include the risk that potential products that appeared promising in early research or clinical trials to SIGA or its collaborators do not demonstrate efficacy or safety in subsequent pre-clinical or clinical trials, and the risk that SIGA or its collaborators will not obtain appropriate or necessary governmental approvals to market products tested in such trials.

More detailed information about SIGA and the factors discussed above is set forth in SIGA's filings with the Securities and Exchange Commission, including SIGA's Annual Report on Form 10-K for the fiscal year ended December 31, 2002, and in other documents that SIGA has filed with the U.S. Securities and Exchange Commission. Investors and security holders are urged to read those documents free of charge at the Commission's Web site at www.sec.gov . SIGA does not undertake to publicly update or revise its forward-looking statements as a result of new information, future events or otherwise.