TORONTO -- (MARKET WIRE) -- April 16, 2007 -- Generex Biotechnology Corporation (NASDAQ: GNBT) announced today that presentations will be made this morning at the 2007 Annual Meeting of the American Association for Cancer Research (AACR) in Los Angeles (www.aacr.org) regarding two vaccine development programs initiated by its wholly owned Antigen Express subsidiary. One presentation will report on the immunological response in patients to its AE37 breast cancer vaccine while the second presentation puts forward preclinical data on a cell-based vaccine for patients with acute myelogenous leukemia (AML).