NEW YORK, Aug. 3, 2009 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (Nasdaq:SIGA), a company specializing in the development of pharmaceutical agents to fight bio-warfare pathogens, has rescheduled its quarterly update call to 10:30 am EDT on Thursday, August 6, 2009 from 9:30 am EDT on that same day. Dial-in access to the call remains the same.
