Delegates from European Parliament Express Support for Rapid Development of New TB Vaccine

Comments expressed during tour of South African clinical trial site where Emergent’s TB vaccine candidate is expected to complete enrollment in April for its Phase IIb efficacy study

ROCKVILLE, Md., Feb 25, 2011 (BUSINESS WIRE) — Emergent BioSolutions Inc. (NYSE:EBS) announced that a joint delegation of Members of the European Parliament (MEPs) and representatives from the Oxford-Emergent Tuberculosis Consortium (OETC) today visited the trial site where MVA85A, the world’s most clinically advanced tuberculosis (TB) vaccine candidate in development, is being studied in a Phase IIb infant efficacy clinical trial. This clinical trial in Worcester, South Africa is being conducted by the University of Cape Town’s South African Tuberculosis Vaccine Initiative (SATVI), in partnership with OETC and Aeras.

“I am very anxious to see a new TB vaccine licensed and I am delighted that this trial of this promising new vaccine candidate is taking place,” said MEP Michael Cashman, Chairman of the South Africa Delegation of the European Parliament. “It is vital for South Africa that a new vaccine is developed as soon as possible, especially for infants and those with HIV. If this trial is successful, South Africa will benefit and so will the rest of the world. Too many lives are lost to tuberculosis and I am pleased to see so many public and private bodies coming together to deliver what could be the first new TB vaccine in 90 years.”

“Emergent BioSolutions is proud to be part of OETC, a joint venture established with the University of Oxford in 2008, to further develop the most clinically advanced investigational TB vaccine,” said Allen Shofe, OETC Board Member and Senior Vice President Corporate Affairs of Emergent BioSolutions. “This collaboration is an integral part of a multi-pronged approach to alleviating the global burden of tuberculosis. Through our involvement in OETC, Emergent is given an opportunity to touch the lives of many in fulfillment of our company mission – to protect life.”

The MEPs learned firsthand about the TB vaccine candidate and progress of the clinical trial from lead scientist and developer Dr. Helen McShane from the University of Oxford. “We are extremely pleased with the progress of the trial,” said Dr. McShane. “We anticipate that the trial, which involves administering MVA85A as a booster to the BCG vaccine, will reach the enrollment target of 2,784 infants by the end of April 2011. The follow-up period and study results are expected to be completed in 2012.”

The delegation also observed the vaccination of infants as part of the trial and visited the hospital facilities with Dr. Hassan Mahomed, SATVI’s Principal Investigator on the study.

About Emergent BioSolutions Inc.

Emergent BioSolutions, led by Chairman and CEO Fuad El-Hibri, protects and enhances life by developing and manufacturing vaccines and therapeutics that are supplied to healthcare providers and purchasers for use in preventing and treating disease. Emergent’s marketed and investigational products target infectious diseases, oncology and autoimmune disorders. Additional information about the company 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, 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 actual results of the Consortium or Emergent to differ materially from those indicated by such forward-looking statements, including the timing of, and the potential for successful outcomes resulting from, future product development efforts; the ability of the Consortium or Emergent to obtain additional funding for product development efforts; plans of the Consortium and Emergent to expand manufacturing facilities and capabilities; the rate and degree of market acceptance and clinical utility of products; and other factors identified in Emergent’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 and subsequent reports filed with the SEC. The Consortium and Emergent disclaim any intention or obligation to update any forward-looking statements as a result of developments occurring after the date of this press release.

SOURCE: Emergent BioSolutions Inc.

Emergent BioSolutions Announces Initiation of Phase Ib/II Study of TRU-016 in Combination with Bendamustine for Chronic Lymphocytic Leukemia

ROCKVILLE, Md., Jan 25, 2011 (BUSINESS WIRE) — Emergent BioSolutions Inc. (NYSE: EBS) today announced the initiation of a Phase Ib/II study (16201) of TRU-016 for chronic lymphocytic leukemia (CLL). TRU-016 is a CD37-directed Small Modular ImmunoPharmaceutical (SMIP(TM)) protein therapeutic in development for the treatment of B-cell malignancies. TRU-016 is being developed in collaboration with Abbott.

The open-label, multi-center, active-controlled study is expected to enroll up to 114 bendamustine-naïve patients with a confirmed diagnosis of relapsed CLL and who have failed up to three previous treatments. The Phase Ib portion of the study will determine a safe and tolerable dose of TRU-016 in combination with bendamustine in up to 14 patients with relapsed CLL. The primary endpoint for the Phase Ib portion is the incidence of dose-limiting toxicities.

The Phase II portion of the study will evaluate the safety and efficacy of TRU-016 in combination with bendamustine compared with standalone bendamustine treatment in a total of 100 randomized patients. The primary endpoint for the Phase II portion of the study is an overall response rate as defined by 2008 International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria. Secondary endpoints include complete and partial response rates as defined by the 1996 National Cancer Institute (NCI) criteria, progression-free survival, duration of response, and improvement in quality of life and disease symptoms.

The pharmacokinetics and pharmacodynamics of TRU-016 will be studied in both phases of the study.

“Given the strong TRU-016 preclinical combination data, and the positive clinical results from the single agent dose escalation study, we believe human clinical evaluation of TRU-016 in combination with bendamustine could yield meaningful results,” said Dr. W. James Jackson, chief scientific officer at Emergent BioSolutions. “The dose escalation study in CLL continues to demonstrate that TRU-016 is well tolerated and clinically active and we look forward to Phase I combination data from this study, as well as the planned Phase I combination study for follicular Non-Hodgkin’s Lymphoma.”

Additional information about this Phase Ib/II clinical study can be found on www.clinicaltrials.gov (protocol 16201).

In December 2010, data were presented at the 52^nd Annual Meeting of the American Society of Hematology (ASH) from a Phase I TRU-016 monotherapy, dose escalation trial involving 57 patients who have had a median of four previous therapies and a median of two prior anti-CD20 therapies. Of the 57 patients, 46% received their last treatment for CLL less than 6 months before entering the study. Genomic data were available for 53 patients, the majority of which (n=35) had high-risk genomic features for CLL, including del(17p) and/or del(11q).

Pharmacokinetic data demonstrated rapid clearance of TRU-016 in the lower dose cohorts. Accumulation was seen in the 3mg/kg TIW and 6mg/kg weekly and higher cohorts. Patients in the 3 mg/kg TIW cohort (n=8) generally maintained serum concentrations of 10 g/ml during treatment. Partial response was observed in seven patients, including two patients with the del(17p) genomic risk factor. The median reduction in absolute lymphocyte count was 73% in those patients with lymphocytosis at baseline. The responses, all partial responses, were observed in patients who had received 1 – 2 prior therapies (n=16) for an overall response rate of 44% (n=7) with a median reduction in lymphocytes of 80% in this population. No responses were observed in patients who had received prior treatment with three or more therapies (n=41), although a median reduction in lymphocytes of 54% was observed in these patients. The median reduction in lymphocytes regardless of baseline lymphocyte count or the number of prior therapies was 60%.

The most commonly reported adverse events were nausea, fatigue, diarrhea, chills, pyrexia, and neutropenia. Serious adverse events occurring in more than one patient were pneumonia, febrile neutropenia, infusion reaction, pyrexia and dyspnea. A maximum tolerated dose has not yet been reached. Additional data from all TRU-016 ASH presentations can be found at: www.truemergent.com.

About CLL

According to the Leukemia & Lymphoma Society, there are approximately 85,710 people in the U.S. living with CLL, and more than 15,000 new cases are diagnosed each year. Existing treatments for CLL have shown significant efficacy in treating indolent B-cell cancers. However, research suggests that many patients do not achieve an initial response and most eventually relapse, which suggests an acute need for differentiated treatments.

About TRU-016

TRU-016 uses a different mechanism of action than currently marketed CD20-directed therapies. As a result, TRU-016 may provide patients with improved therapeutic options and enhance efficacy when used alone or in combination with chemotherapy and/or other CD20-directed therapeutics.

About Emergent BioSolutions Inc.

Emergent BioSolutions Inc., led by Chairman and CEO Fuad El-Hibri, is a global 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 and investigational products target infectious diseases, oncology, and autoimmune disorders. Additional information about the company 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, estimates of results for 2010, expected revenue growth and net earnings for 2011, 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 our ability to obtain additional development funding for our product candidates; 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; the timing of and our ability to obtain and maintain regulatory approvals for our other product candidates; our ability to obtain sales contracts for products; our commercialization, marketing and manufacturing capabilities and strategy; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2010 and subsequent reports filed with the SEC.

SOURCE: Emergent BioSolutions Inc.

Emergent BioSolutions Starts Phase I Clinical Trial for Third Generation Anthrax Vaccine

ROCKVILLE, Md., Dec 27, 2010 (BUSINESS WIRE) — Emergent BioSolutions Inc. (NYSE:EBS) today announced the initiation of a Phase I clinical trial for NuThrax^TM (Anthrax Vaccine Adsorbed with CPG 7909 Adjuvant), also known as AV7909, with the dosing of the first subject. The product candidate, a third generation vaccine being developed as part of Emergent’s anthrax franchise, consists of BioThrax^(R) (Anthrax Vaccine Adsorbed) in combination with a novel immunostimulatory compound, CPG 7909.

“Emergent is pleased to commence this clinical trial in support of the U.S. government’s multiple product strategy to strengthen the nation’s biodefense capabilities,” said Daniel J. Abdun-Nabi, president and chief operating officer of Emergent BioSolutions. “We believe this third generation anthrax vaccine has the potential to exhibit advanced characteristics such as requiring fewer doses, generating an enhanced immune response, and having a favorable shelf life. If successful, this could be an attractive candidate for the government’s growing arsenal of medical countermeasures.”

The Phase I clinical trial, a parallel arm dose-ranging study, is designed to evaluate the safety, tolerability, and immunogenicity of the vaccine candidate. The study is being conducted in multiple sites within the U.S. and involves 105 healthy volunteers. Preliminary data from this study is expected to be available in the third quarter of 2011.

This Phase I trial is being conducted with support from a development contract that is jointly administered under contract number HHSN272200800051C by the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health (NIH), and the Office of the Biomedical Advanced Research and Development Authority (BARDA) of the Department of Health and Human Services (HHS).

About Emergent BioSolutions Inc.

Emergent BioSolutions Inc., led by Chairman and CEO Fuad El-Hibri, is a global 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 and investigational products target infectious diseases, oncology, and autoimmune disorders. Additional information about the company 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 the success of our ongoing and planned preclinical studies and clinical trials; our plans to pursue label expansions and improvements for BioThrax^(R); the rate and degree of market acceptance and clinical utility of our products; the success of our ongoing and planned development programs; the timing of and our ability to obtain and maintain regulatory approvals for our other product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 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.

SOURCE: Emergent BioSolutions Inc.

Emergent BioSolutions Awarded HHS Contract Valued at up to $186.6 Million to Develop rPA Anthrax Vaccine

ROCKVILLE, MD, September 17, 2010 – Emergent BioSolutions Inc. (NYSE:EBS) announced today that it has signed a contract, valued at up to $186.6 million, with the Biomedical Advanced Research and Development Authority (BARDA) of the Department of Health and Human Services (HHS), for the development of a recombinant protective antigen (rPA) anthrax vaccine. This five year cost plus fixed fee development contract consists of a two-year base period of performance valued at approximately $51 million, three successive one-year option periods valued at approximately $126 million and funding for optional non-clinical studies valued at approximately $9 million.

“We applaud the U.S. Government’s commitment to the biodefense industry and to the development of additional medical countermeasures using multiple technologies and additional sites to address the acknowledged anthrax threat,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions. “This award solidifies Emergent’s anthrax franchise and reaffirms our position as a leading supplier to, and developer for, the U.S. government of anthrax biomedical countermeasures. We are enthusiastic about the role we serve in addressing this need and in creating jobs and expanding economies within the local communities where we operate.”

Under the contract, the base value will fund activities related to process characterization and assay validation, as well as formulation and stability studies. Milestone-based options include completion of a Phase II clinical study and non-clinical efficacy studies, process validation, as well as consistency lot manufacture. Emergent has developed this comprehensive plan as a foundation to advance its rPA anthrax vaccine candidate in preparation for pivotal studies that would potentially lead to licensure application with the U.S. Food and Drug Administration.

The company anticipates recognizing revenues from this award in the fourth quarter of 2010 of approximately $2 million with no major impact on pretax earnings.

Emergent’s rPA anthrax vaccine candidate is a purified recombinant protective antigen protein formulated with an alum adjuvant and is designed to induce antibodies that neutralize anthrax toxins. It is based on the pioneering work of the U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID) and has been the subject of two research and development grants totaling approximately $100 million by the National Institute of Allergy and Infectious Diseases (NIAID).

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 our ability to win a procurement contract with the U.S. government for our recombinant protective antigen anthrax vaccine candidate; 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; the timing of and our ability to obtain and maintain regulatory approvals for our product candidates; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 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.

EMERGENT BIOSOLUTIONS ANNOUNCES MANAGEMENT CHANGES

ROCKVILLE, MD, May 16, 2007—Emergent BioSolutions Inc. (NYSE: EBS) announced today the consolidation of the president and chief operating officer position. With this change, Daniel J. Abdun-Nabi, the company’s president, will also take on the role of chief operating officer. In this combined role, Mr. Abdun-Nabi will oversee all of the company’s product development, manufacturing and corporate affairs activities. Mr. Abdun-Nabi will continue to report to Fuad El-Hibri, chairman and chief executive officer of the company.

Specifics of other management changes, which are also effective immediately, include:

• R. Don Elsey is being promoted to the position of senior vice president finance and administration. Mr. Elsey was formerly vice president finance and administration. Mr. Elsey will continue to retain his responsibilities as chief financial officer for the company and will now assume additional responsibility for investor relations and human resource activities. Mr. Elsey will continue to report to Mr. El-Hibri, cha Business, Chief executive officer, Form 10-K, Private Securities Litigation Reform Act, U.S. Securities and Exchange Commission, US Food and Drug Administrationirman and chief executive officer.
• Kyle W. Keese is being appointed to the position of senior vice president corporate affairs with responsibility for public affairs, marketing and sales and corporate development. Mr. Keese was formerly senior vice president marketing and communications.
• Thomas K. Zink, M.D. is assuming the responsibility for clinical development in addition to medical affairs. Dr. Zink, formerly senior vice president medical affairs, is now senior vice president medical and clinical development. Dr. Zink will continue to retain his responsibilities as chief medical officer for the company and, in that capacity, will continue to report to Mr. El-Hibri, chairman and chief executive officer.
• Edward J. Arcuri, Ph.D., is resigning his position as chief operating officer. The resignation is effective immediately.

“Today’s senior management consolidation and associated changes within our corporate organization are designed to strengthen the integration of our development and manufacturing organizations and to enhance the company’s positioning and capabilities in both the biodefense and commercial immunobiotic markets,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions Inc.

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 or 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 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 our expected revenue growth and net earnings for 2007, 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 our performance under BioThrax® sales contracts with the U.S. government, including the timing of deliveries under these contracts; our ability to obtain new BioThrax sales contracts with the U.S. government; our plans for future sales of BioThrax; 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; 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; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the company’s Annual Report on Form 10-K for the year ended December 31, 2006 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.

VIVALIS AND OXFORD-EMERGENT TUBERCULOSIS CONSORTIUM SIGN COMMERCIAL LICENSE AGREEMENT

OXFORD, UK and ROCKVILLE, MD and NANTES, FRANCE–(Marketwire – May 6, 2009) – Oxford- Emergent Tuberculosis Consortium signs commercial license agreement with vivalis to eXPLORE production of MVA85A tb vaccine candidate USING EB66® CELL LINE

MVA85A is the most clinically advanced of a new generation of TB vaccines under development

OXFORD, UK; ROCKVILLE, MD, USA; NANTES, FRANCE – May 5, 2009 – The Oxford- Emergent Tuberculosis Consortium Ltd., a joint venture between the University of Oxford and Emergent BioSolutions Inc. (NYSE: EBS), announced today the signing of a commercial license agreement with Vivalis (NYSE- EuroNext:VLS) to evaluate large scale commercial production capabilities for MVA85A, the Consortium’s promising new TB vaccine candidate.

Under the commercial agreement, the Consortium will explore production of MVA85A using the Vivalis proprietary EB66® cell line, which is derived from duck embryonic stem cells. This cell line possesses unique industrial and regulatory characteristics such as long term genetic stability and immortality, growth in serum free medium, and proliferation at high cell densities in suspension.

“We are pleased that the Oxford-Emergent Tuberculosis Consortium was able to enter into this agreement with Vivalis to support the production of MVA85A, the most clinically advanced TB vaccine candidate targeting one of the world’s deadliest diseases,” said Fuad El-Hibri , chairman and chief executive officer of Emergent BioSolutions. “This license is a further step towards addressing an unmet medical need and supportive of our company mission – to protect life.”

“Vivalis is proud to be selected by the Oxford-Emergent Tuberculosis Consortium to advance their MVA-based vaccine” said Franck Grimaud, chief executive officer of Vivalis. “Our EB66® cell line is recognized by a large majority of vaccine developers and this agreement adds the Consortium to our growing list of customers proving our cell line is a serious contender for biologics production.”

The Consortium recently announced the commencement of a Phase IIb clinical trial to evaluate MVA85A in approximately 2,784 children less than one year of age in South Africa. It is expected that the trial will generate important safety, immunogenicity and preliminary efficacy data about the vaccine candidate.

The commercial license includes an upfront payment to Vivalis as well as development milestone payments and royalties on future sales of the TB candidate.

The Oxford-Emergent Tuberculosis Consortium Ltd. (OETC) is a joint venture between the University of Oxford and Emergent Product Development UK Ltd. OETC was formed with the aim of developing the MVA85A TB vaccine to meet both developed and developing country health needs. The vaccine was licensed by Isis Innovation, Oxford’s technology transfer company, to the Consortium in July 2008.

Vivalis (NYSE-Euronext: VLS) is a biopharmaceutical company that provides innovative cell-based solutions to the pharmaceutical industry for the manufacture of vaccines and proteins, and develops drugs for the prevention and treatment of viral diseases. Vivalis expertise and intellectual property are exploited in three main areas:

1. The development and manufacturing of vaccines. Vivalis offers research and commercial licenses for its EB66® cell line, derived from duck embryonic stem cells, to pharmaceutical and biotechnology companies for the production of viral vaccines. Vivalis receives up front, milestones, and royalties on its licensee’s net sales.

2. The development of production systems for recombinant proteins and monoclonal antibodies. Vivalis licenses its EB66® cell line for the production of recombinant proteins to biotechnology and pharmaceutical companies. Vivalis receives up front, milestones, and royalties on its licensees’ net sales.

3. The construction of a portfolio of proprietary products in the area of vaccines and anti-viral molecules (hepatitis C).

Based in Nantes (France), Vivalis was founded in 1999 by the Grimaud group (1,450 employees), the second largest group worldwide in animal genetic selection. Vivalis has established more than 25 partnerships with world leaders in this sector. Vivalis is a member of the French ATLANTIC BIOTHERAPIES bio-cluster.

Learn more about Vivalis at www.vivalis.com

Emergent BioSolutions Inc. is a biopharmaceutical company focused on the development, manufacture and commercialization of vaccines and therapeutics that assist the body’s immune system to prevent or treat disease. Emergent’s marketed product, BioThrax® (Anthrax Vaccine Adsorbed), is the only vaccine licensed by the U.S. Food and Drug Administration for the prevention of anthrax. Emergent’s development pipeline includes programs focused on anthrax, botulism, tuberculosis, typhoid, hepatitis B and chlamydia. Additional information may be found at www.emergentbiosolutions.com.

The University of Oxford’s Medical Sciences Division is one of the largest biomedical research centers in Europe. It represents almost one-third of Oxford University’s income and expenditure, and two-thirds of its external research income. Oxford’s world-renowned global health program is a leader in the fight against infectious diseases (such as malaria, HIV/AIDS, tuberculosis and avian flu) and other prevalent diseases (such as cancer, stroke, heart disease and diabetes).

Key to its success is a long-standing network of dedicated Wellcome Trust- funded research units in Asia (Thailand, Laos and Vietnam) and Kenya, and work at the MRC Unit in The Gambia. Long-term studies of patients around the world are supported by basic science at Oxford and have led to many exciting developments, including potential vaccines for tuberculosis, malaria and HIV, which are in clinical trials. www.medsci.ox.ac.uk

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 strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, 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 actual results of the Consortium or Emergent to differ materially from those indicated by such forward-looking statements, including the timing of, and the potential for successful outcomes resulting from, future product development efforts; the ability of the Consortium or Emergent to obtain additional funding for product development efforts; plans of the Consortium and Emergent to expand manufacturing facilities and capabilities; the rate and degree of market acceptance and clinical utility of products; and other factors identified in Emergent’s annual report on Form 10-K for the year ended December 31, 2008 and subsequent reports filed with the SEC. The Consortium and Emergent disclaim any intention or obligation to update any forward-looking statements as a result of developments occurring after the date of this press release.

Emergent BioSolutions Celebrates Initial Public Offering; CEO To Ring Opening Bell on the NYSE

21 November, 2006 GAITHERSBURG, Md.–(BUSINESS WIRE)–Nov. 21, 2006–Emergent BioSolutions Inc. (NYSE:EBS), a biopharmaceutical company that develops vaccines and therapeutics for biodefense and commercial applications and manufactures the only anthrax vaccine approved by the U.S. Food and Drug Administration (FDA), today announced it will be celebrating the Company’s recently completed initial public offering with the ringing of the opening bell of the New York Stock Exchange by Fuad El-Hibri, chairman and chief executive officer, on Wednesday November 22, 2006. “Throughout the Company’s history, our people, science and technology have contributed significantly to safeguarding millions of military personnel and the general population through the delivery of a safe and effective countermeasure against the threat of anthrax infection,” said Mr. El-Hibri. “Tomorrow’s ringing of the opening bell is an opportunity to celebrate our Company and our achievements thus far, while acknowledging the commitment and support of our employees, customers and, now, investors who continue to drive our success.” Emergent BioSolutions’ common stock began trading on November 15, 2006 under the symbol EBS. Emergent is a biopharmaceutical company focused on the development, manufacture and commercialization of immunobiotics, such as vaccines and immune globulins, that induce or assist the body’s immune system to prevent or treat disease. The Company operates in two business segments: biodefense and commercial. In its biodefense business, the Company develops and commercializes immunobiotics for use against biological agents that are potential weapons of bioterrorism. In its commercial business, the Company develops immunobiotics for use against infectious diseases with significant unmet or underserved medical needs. The Company’s marketed product, BioThrax(R) (Anthrax Vaccine Adsorbed), is the only vaccine approved by the FDA for the prevention of anthrax infection. For more information about BioThrax, please review the package insert located on the Company’s website www.emergentbiosolutions.com. In addition to BioThrax(R), the Company’s biodefense product portfolio includes three biodefense product candidates in preclinical development and a next generation anthrax vaccine program with product candidates in preclinical and Phase I clinical development. The Company’s commercial product portfolio includes a typhoid vaccine candidate and a hepatitis B therapeutic vaccine candidate, both of which are in Phase II clinical development, one vaccine candidate in Phase I clinical development and two vaccine candidates in preclinical development. 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 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 Emergent’s actual results to differ materially from those indicated by such forward-looking statements, including our plans for future sales of BioThrax; 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; 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 our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the Company’s Registration Statement on Form S-1 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. www.emergentbiosolutions.com