ROCKVILLE, MD,  June 24, 2010 – Emergent  BioSolutions  Inc. (NYSE:EBS) led by CEO Fuad  El-Hibri,announced today that it has  completed separate international sales and deliveries of  BioThrax®  (Anthrax Vaccine Adsorbed) to governments of several allied nations.    The company’s international sales efforts have resulted in  these sales of an undisclosed  number of BioThrax doses for aggregate  revenue of approximately $2.3 million in  the second quarter.
 “Emergent recognizes that governments play a key role in protecting  citizens  against the growing threat of bioterrorism,” said Allen Shofe,  senior vice president public affairs of Emergent BioSolutions.  “As the  maker of the only U.S. FDA-licensed anthrax vaccine, and in line with  our corporate  mission to protect life, we are honored to support such  biopreparedness efforts of  allied international governments.”
 About BioThrax
 BioThrax is the only U.S. FDA-licensed vaccine for the prevention of  anthrax infection.  It is indicated for the active immunization of  adults who  are at high risk of exposure to anthrax.  BioThrax is  manufactured from a culture filtrate, made from a non-virulent strain of  Bacillus anthracis. Since 1998,  the U.S. government has  procured over 42 million doses of BioThrax.  During that time period,  more than 9.5 million doses have been administered to nearly 2.4 million  military personnel.  For full prescribing information, please visit www.biothrax.com/prescribinginformation_biothrax_us.pdf.
 Important Safety Information  for BioThrax®
 The most  common (>10%) local (injection-site) adverse reactions  observed in clinical  studies were tenderness, pain, erythema and arm  motion limitation. The most  common (>5%) systemic adverse reactions  were muscle aches, fatigue and  headache. Serious allergic reactions,  including anaphylactic shock, have been  observed during post-marketing  surveillance in individuals receiving BioThrax.
 Pregnant  women should not be vaccinated unless the potential  benefits of vaccination have been determined to outweigh the potential  risk to the fetus. If BioThrax is  used during pregnancy, or if the  patient becomes pregnant during the  immunization series, the patient  should be apprised of the potential hazard to the  fetus. This product  should be administered with caution to persons with a  possible history  of latex sensitivity since the vial stopper contains dry natural rubber.
 Vaccination with BioThrax should  be avoided by individuals with a  history of anaphylactic or  anaphylactic-like reaction following a  previous dose of BioThrax.
 About Emergent BioSolutions  Inc.
 Emergent BioSolutions Inc. is a biopharmaceutical company focused on  the  development, manufacture and commercialization of vaccines and  antibody therapies  that assist the body’s immune system to prevent or  treat disease.  Emergent’s marketed product, BioThrax®  (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S.  Food and Drug Administration for the prevention of anthrax infection.   Emergent’s product pipeline targets infectious diseases and includes  programs  focused on anthrax, tuberculosis, typhoid, flu and chlamydia.   Additional  information may be found at www.emergentbiosolutions.com.
  
 Safe Harbor Statement
 This press release includes forward-looking statements within the  meaning of  the Private Securities Litigation Reform Act of 1995. Any  statements, other  than statements of historical fact, including  statements regarding our  strategy, future operations, future financial  position, future revenues, projected  costs, prospects, plans and  objectives of management, including any potential  future securities  offering, our expected revenue growth and net earnings for  2010, and  any other statements containing the words “believes”, “expects”,  “anticipates”, “plans”, “estimates” and similar expressions, are  forward-looking statements. There are a number of important factors that  could cause the company’s actual results to differ materially from  those indicated by such forward-looking statements, including  appropriations for BioThrax® procurement; our ability to  obtain new BioThrax® sales contracts; our plans to pursue  label expansions and improvements for  BioThrax®; our plans  to expand our manufacturing facilities and capabilities; the  rate and  degree of market acceptance and clinical utility of our products; the   success of our ongoing and planned development programs, preclinical  studies and clinical trials; and other factors identified in the  company’s Quarterly Report on Form 10-Q for the quarter ended March 31,  2010 and subsequent  reports filed with the SEC. The company disclaims  any intention or obligation to  update any forward-looking statements as  a result of developments occurring  after the date of this press  release.