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EMERGENT BIOSOLUTIONS ANNOUNCES THE APPOINTMENT OF DENISE LANDRY AS SENIOR VICE PRESIDENT, QUALITY

ROCKVILLE, MD, October 9, 2007—Emergent BioSolutions Inc. (NYSE: EBS) announced today that Ms. Denise Landry has joined the company as Senior Vice President, Quality with responsibility for managing and overseeing all Quality activities company-wide.  Ms. Landry has broad-based quality experience for pharmaceutical and biologics operations, including activities relating to all phases of product development, regulatory submissions, and compliance programs.  In addition, Mrs. Landry has extensive experience interacting with regulatory authorities including the U.S. Food and Drug Administration (FDA), the European Medicines Agency (EMEA) and the Medicines and Healthcare Product Regulatory Agency (MHRA) in the United Kingdom.

Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions stated “I am pleased to welcome Ms. Denise Landry to Emergent BioSolutions as Senior Vice-President, Quality.  Her two decades of experience in the Quality programs will be a critical asset to our team.  Denise’s first-hand experience and breadth of knowledge make her uniquely qualified for such an important role in our company.”

Ms. Landry joins the company from MGI Pharma Inc. and its predecessor Guilford Pharmaceuticals, where she served as Vice President, Corporate Quality.  Prior to her 13 year tenure there, Ms. Landry was the Director Quality Assurance for Pharmaceutical Systems, Inc. and Quality Assurance Director for Smith & Nephew Solopak.  She began her career in the quality control field as a Service Quality Manager for Baxter Healthcare Corporation.

“I am very pleased to be joining the management team at Emergent BioSolutions, and I share their commitment to maintaining the highest quality standards in manufacturing and product development,” said Ms. Denise Landry.  “I have dedicated my career to this industry and look forward to leading and promoting continuous quality improvement throughout the company as it develops and manufactures products to protect life.”

Mrs. Landry holds a BA in Biology from Fisk University in Tennessee.  She is a member of the American Society of Quality Control and the Parenteral Drug Association.

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® (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S. Food and Drug Administration for the prevention of anthrax disease.  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.