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Rosen Law Firm Reminds Hemispherx Biopharma, Inc. Investors of Important February 22, 2013 Deadline -- HEB

NEW YORK, Feb. 1, 2013 (GLOBE NEWSWIRE) -- The Rosen Law Firm reminds investors of the important February 22, 2013 lead plaintiff deadline in the class action filed on behalf of investors who purchased the securities of Hemispherx Biopharma, Inc., (NYSE:HEB) during the period from March 19, 2012 through December 17, 2012.

To join the Hemispherx class action, visit the firm's website at http://rosenlegal.com, or call Phillip Kim, Esq., toll-free, at 866-767-3653; you may also email pkim@rosenlegal.com for information on the class action.

The Complaint asserts violations of the federal securities laws against Hemispherx and its officers and directors for issuing false and misleading information about its lead drug candidate Ampligen. Specifically, that Hemispherx misstated the safety and efficacy of Ampligen, and touted purportedly positive results from Ampligen's clinical trials.

On December 18, 2012, the FDA published a staff report concluding that the Company's studies were "ill-defined and invalid" with signals of efficacy that were inconsistent between clinical trials, and based on the limited quality of the data, "it is difficult to draw conclusions regarding potential safety signals," but the "review identified nine potential safety concerns associated with Ampligen." The Complaint alleges that as a result of this adverse information, Hemispherx stock price dropped and investors have been damaged.

If you wish to serve as lead plaintiff, you must move the Court no later than February 22, 2013. A lead plaintiff is a representative party acting on behalf of other class members in directing the litigation. If you wish to join the litigation, or to discuss your rights or interests regarding this class action, please contact Phillip Kim, Esq. of The Rosen Law Firm, toll-free, at 866-767-3653, or via e-mail at pkim@rosenlegal.com. You may also visit the firm's website at http://www.rosenlegal.com.

The Rosen Law Firm represents investors throughout the globe, concentrating its practice in securities class actions and shareholder derivative litigation.

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CONTACT: Laurence Rosen, Esq. Phillip Kim, Esq. The Rosen Law Firm P.A. 275 Madison Avenue 34th Floor New York, New York 10016 Tel: (212) 686-1060 Weekends Tel: (917) 562-8616 Toll Free: 1-866-767-3653 Fax: (212) 202-3827 lrosen@rosenlegal.com pkim@rosenlegal.com szhang@rosenlegal.com www.rosenlegal.comSource: The Rosen Law Firm PA PC