Emergent BioSolutions to Release Third Quarter 2010 Financial Results and Conduct a Conference Call on November 4, 2010

ROCKVILLE, Md., Oct 13, 2010 — Emergent BioSolutions Inc. (NYSE: EBS) announced today it will report financial results for third quarter 2010 on Thursday November 4, 2010, after market close. Company management will host a conference call at 5:00 pm Eastern on November 4, 2010 to discuss the financial results for the third quarter and first nine months of 2010, recent business developments and the forecast for 2010. The conference call will be accessible by dialing 888/713-4211 or 617/213-4864 (international) and providing passcode 50859780. A webcast of the conference call will be accessible from the Company’s website at www.emergentbiosolutions.com, under “Investors”.

Emergent BioSolutions is offering call participants a pre-registration option that expedites access to the call and minimizes hold times. Pre-registrants will be issued a pin number to be used when dialing into the live call which will provide quick access to the conference call by bypassing the operator upon connection. Pre-registration, while not mandatory, can be accessed using the following website: https://www.theconferencingservice.com/prereg/key.process?key=PNP49E4W7.

A replay of the conference call will be accessible, approximately one hour following the conclusion of the call, by dialing 888/286-8010 or 617/801-6888 and using the passcode 97521313. The replay will be available through November 18. The webcast will be archived on the company’s website, www.emergentbiosolutions.com, under “Investors”.

About Emergent BioSolutions Inc.

Emergent BioSolutions Inc., led by Chairman and CEO, Fuad El-Hibri, 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^(R) (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S. Food and Drug Administration for the prevention of anthrax disease. 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.

Fuad El-Hibri and The National Health Museum

The National Health Museum (NHM) is a science-based institution devoted to educating and inspiring Americans to live healthier lives. With an on site museum planned in Atlanta, and a web-based cyber museum, NHM is committed to bringing health science to life with exhibits, programs, and teaching strategies for educators. The web-based cyber museum is a global online network and digital information hub, consisting of an interactive online exhibit of cutting-edge science. Its global conference center and forum will stimulate dialogue between scientists, policy makers, and consumers concerning medical breakthroughs. Along with other leaders in business, science, public service, and medicine, Fuad El-Hibri serves on the NHM Board of Trustees.

NHM’s on-site museum, called The Experience Museum, is expected to be located at Atlanta Centennial Olympic Park. The facility will consist of self-guided multi-dimensional immersive presentations of life, health, and the human body, designed by BRC Imagination Arts. Renowned architect Moshe Safdie is designing the facility.