PHILADELPHIA, March 31, 2011 (GLOBE NEWSWIRE) -- Hemispherx Biopharma, Inc. (NYSE Amex:HEB) (the “Company”) has scheduled a conference call and audio webcast on Wednesday, April 6, 2011 at 10:00 AM Eastern Time. The conference call will discuss its year-end 2010 results of operations and will also focus on new clinical initiatives against the backdrop of recent advances in the cancer immunotherapy sector and new advances in CFS diagnostics. Company executives will conduct a question and answer session following their remarks.