Director of the U.S. Department of Homeland Securi

PHILADELPHIA, Aug. 20, 2013 (GLOBE NEWSWIRE) -- Hemispherx Biopharma (NYSE MKT:HEB) announced that one of its advanced stage biological products, Alferon N ^® , will be featured as part of a new experimental program designed to potentially limit the spread and lethality of the pandemic influenza virus designated H7N9. Professor Richt, Director of the U.S. Department of Homeland Security Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), will present his program to potentially reduce the spread of influenza from animals to man. Professor Richt, who is a scientific adviser to Hemispherx Biopharma, will discuss new experiments on the possible inhibition of Tamiflu-resistant H7N9 virus by Alferon N ^® and the potential use of Alferon ^® LDO (a low dose oral formulation of Alferon N ^® ) in animals that are considered "mixing vessels" in that they support potential influenza reassortment and virulence. The conference will take place at the Holiday Inn, Orlando International Airport, on August 21-23.

About Alferon N ^®

Alferon N ^® is the only natural source, multi-species alpha interferon currently approved for sale in the U.S. for the intralesional (within lesions) treatment of refractory (resistant to other treatment) or recurring external genital warts (human papilloma virus "HPV") in patients 18 years of age or older.

About Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), Kansas State University

CEEZAD, Center of Excellence for Emerging and Zoonotic Animal Diseases, was officially inaugurated in June 2010, with its first annual conference, held in Manhattan, Kansas, home of Kansas State University. CEEZAD was formed to enhance the capability of the US Department of Homeland Security (DHS) by developing "state of the art" countermeasures for high priority emerging and zoonotic animal diseases.

The College of Veterinary Medicine at Kansas State University was established in 1905. Since then more than 5,000 men and women have been granted the Doctor of Veterinary Medicine degree. Departments within the College of Veterinary Medicine are anatomy and physiology, clinical sciences, diagnostic medicine/pathobiology.

About Hemispherx Biopharma

Hemispherx Biopharma, Inc. is an advanced specialty pharmaceutical company engaged in the manufacture and clinical development of new drug entities for treatment of seriously debilitating disorders. Hemispherx's flagship products include Alferon N Injection® and the experimental therapeutics Ampligen® and Alferon® LDO. Ampligen® is an experimental RNA nucleic acid being developed for globally important debilitating diseases and disorders of the immune system, including Chronic Fatigue Syndrome. Hemispherx's platform technology includes components for potential treatment of various severely debilitating and life threatening diseases. Because both Ampligen® and Alferon® LDO are experimental in nature, they are not designated safe and effective by a regulatory authority for general use and are legally available only through clinical trials. Hemispherx has patents comprising its core intellectual property estate and a fully commercialized product (Alferon N Injection®), approved for sale in the U.S. and Argentina. The Company's Alferon N approval in Argentina includes the use of Alferon N Injection (under the brand name "Naturaferon") for use in any patients who fail, or become intolerant to recombinant interferon, including patients with chronic active hepatitis C infection. The Company wholly owns and exclusively operates a GMP certified manufacturing facility in the United States for commercial products. For more information please visit www.hemispherx.net .

Forward-Looking Statements

To the extent that statements in this press release are not strictly historical, all such statements are forward-looking, and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Words such as "potential," "potentially," "possible,"   and similar expressions are intended to identify forward-looking statements. The inclusion of forward-looking statements should not be regarded as a representation by Hemispherx that any of its plans will be achieved. These forward-looking statements are neither promises nor guarantees of future performance, and are subject to a variety of risks and uncertainties, many of which are beyond Hemispherx's control, which could cause actual results to differ materially from those contemplated in these forward-looking statements. Examples of such risks and uncertainties include those set forth in the Disclosure Notice, above, as well as the risks described in Hemispherx's filings with the Securities and Exchange Commission, including the most recent reports on Forms 10-K, 10-Q and 8-K. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Hemispherx undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise revise or update this release to reflect events or circumstances after the date hereof.

Company/Investor Contact: Dianne Will Hemispherx Biopharma, Inc. 518-398-6222