Emergent BioSolutions Announces Dr. Stephen Lockhart Joins Company to Lead Commercial Product Development Subsidiary.

Dr. Lockhart Brings Top-Tier Pharma Leadership to Development of Company's Commercial Product Portfolio

ROCKVILLE, Md. -- Emergent BioSolutions Inc. (NYSE: EBS) announced today that Dr. Stephen Lockhart has been appointed President, Emergent Product Development UK. Dr. Lockhart will be based at the company's office located in Wokingham, England, and his responsibilities will include providing oversight, leadership, direction and execution of development programs in both the United Kingdom and Germany. These programs include, among others, the following product candidates: a single-dose oral typhoid vaccine that recently completed a Phase II clinical trial; a drinkable Hepatitis B therapeutic vaccine in a Phase II clinical trial; and a group B streptococcal vaccine candidate that completed a Phase I clinical study and for which further clinical studies are being planned in collaboration with the National Institute of Allergy and Infectious Diseases.

"It is with great pleasure that I welcome Dr. Lockhart to the company," said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions. "We are very fortunate to have someone at the helm of our commercial product development efforts with such broad and varied expertise in vaccinology, as well as an intimate understanding of the critical elements involved in the biopharmaceutical industry. His experience in bringing vaccines through clinical development and regulatory approval makes him ideally suited to lead our commercial product development programs."

Dr. Lockhart has over fifteen years of experience in vaccine development and most recently was Assistant Vice President and Global Head of Bacterial Vaccine Clinical R&D at Wyeth. Prior to joining Wyeth in 1990, Dr. Lockhart served as a Medical Adviser with Janssen Pharmaceutical from 1986-1989.

"I am pleased to be joining Emergent BioSolutions and am particularly excited about leading product development for such a diverse portfolio," said Dr. Lockhart. "The success of our efforts will potentially help millions of people and I am eager to apply my years of experience towards this exciting portfolio and the mission of the company," he continued.

Dr. Lockhart is an internationally recognized leader in vaccine-related product development and has been the recipient of multiple awards. He accepted the Prix Galien, a renowned award given for excellence in pharmaceutical innovation, on behalf of Wyeth in both 2000 and 2005 and received the Wyeth Research President's Award in 2000 for leading the development of Meningitec, a meningitis C vaccine.

Dr. Lockhart has an MA from Cambridge University and received his advanced medical and research degrees from Oxford University. In 1983 he became a Member of the Royal College of Physicians and in 1988 received his Diploma in Pharmaceutical Medicine. After becoming a Member for the Faculty of Pharmaceutical Medicine in 1991, Dr. Lockhart was inducted as a Fellow of the Faculty of Pharmaceutical Medicine in 2003.

About Emergent BioSolutions Inc.

Emergent BioSolutions Inc. is a biopharmaceutical company dedicated to one simple mission -- to protect life. We develop, manufacture and commercialize immunobiotics, consisting of vaccines and therapeutics that assist the body's immune system to prevent or treat disease. Our biodefense business focuses on immunobiotics for use against biological agents that are potential weapons of bioterrorism and biowarfare. Our marketed product, BioThrax[R] (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S. Food and Drug Administration for the prevention of anthrax infection. Our commercial business focuses on immunobiotics for use against infectious diseases and other medical conditions that have resulted in significant unmet or underserved public health needs. More information on the company is available 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 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 the execution of our strategy by our executive team; our plans to expand our manufacturing facilities and capabilities; the rate and degree of market acceptance and clinical utility of our products; our ongoing and planned development programs, preclinical studies and clinical trials; our ability to identify and acquire or in license products and product candidates that satisfy our selection criteria; the potential benefits of our existing collaboration agreements and our ability to enter into selective additional collaboration arrangements; the timing of and our ability to obtain and maintain regulatory approvals for our product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our intellectual property portfolio; and other factors identified in the company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2007 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.