PHILADELPHIA, Sept. 23, 2009 (GLOBE NEWSWIRE) -- Hemispherx Biopharma, Inc. (NYSE Amex:HEB) (the "Company"), today announced that the Company will participate in the Maxim Group 3rd Annual Growth Conference to be held on Tuesday, September 29, 2009 at the Grand Hyatt Hotel in New York City. Dr. William A. Carter, Hemispherx's Chairman & CEO, is scheduled to present at 11:30 AM Eastern time.