ImmuneRegen BioSciences to test efficacy of Homspera against H5N1 Avian Influenza (News-Medical-Net) ImmuneRegen BioSciences, Inc.®, a wholly owned subsidiary of IR Biosciences Holdings, Inc. (OTCBB: IRBS), today announced that its lead anti-influenza drug, Homspera, will be tested for efficacy against highly lethal H5N1 Avian Influenza in the laboratories of a widely respected University scientist. Additionally, testing at an independent facility will further define the adjuvant efficacy of ... [News Source]