The Fuad El-Hibri Organization

ROCKVILLE, Md., May 31, 2011 (BUSINESS WIRE) — Emergent BioSolutions Inc. (NYSE:EBS) announced today that eight lots of BioThrax^(R) (Anthrax Vaccine Adsorbed) have received regulatory release for delivery to the U.S. government under the company’s contract (200-2009-30162) originally written to supply 14.5 million doses of BioThrax to the Strategic National Stockpile. This marks the largest single-week regulatory release of product for delivery in the company’s history. The company expects to complete delivery of the 14.5 million doses as early as June, approximately three months ahead of the schedule originally set forth in the contract. BioThrax is the only vaccine licensed by the U.S. Food and Drug Administration (FDA) to protect against anthrax infection.

“Emergent is pleased with its progress towards early completion of its original procurement contract to supply 14.5 million doses of BioThrax,” said Daniel J. Abdun-Nabi, president and chief operating officer of Emergent BioSolutions. “Upon completion of this delivery, anticipated to occur as early as June, the company will focus on delivering the additional 3.42 million doses under the modified procurement contract. With the recent request for proposal issued by the U.S. government, Emergent is also advancing discussions to supply 44.75 million doses of BioThrax over the next five years.”

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.

About BioThrax

BioThrax is the only 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. To date, Emergent has delivered over 42 million doses of BioThrax to the U.S. government and continues to deliver additional doses under active procurement contracts. Since 1998, over 10 million doses have been administered to more than 2.5 million military personnel.

For full prescribing information , please visit www.biothrax.com/prescribinginformation_biothrax_us.pdf

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 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 appropriations for BioThrax^(R) procurement; our ability to obtain new BioThrax^(R) sales contracts or modifications to existing contracts; our plans to pursue label expansions and improvements for BioThrax^(R); our plans to expand our manufacturing facilities and capabilities; the rate and degree of market acceptance of our products; the success of preclinical studies and clinical trials of our product candidates and post-approval clinical utility of our products; and other factors identified in the company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011 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.

Company anticipates total revenues of $275 to $300 million and net income of $40 to $50 million

ROCKVILLE, MD, July 20, 2010 – Emergent BioSolutions Inc. (NYSE:EBS) announced today that it is revising upwards its 2010 annual guidance to now reflect anticipated total revenues of $275 to $300 million and net income of $40 to $50 million.  Of the anticipated total revenues of $275 to $300 million, $165 to $190 million is expected to be recognized in the second half of 2010.  This revised forecast does not reflect or incorporate any revenue impact from a possible development contract for the company’s rPA vaccine candidate.

The revision to the 2010 financial forecast is supported primarily by the recent modification to the company’s current BioThrax^® procurement contract with the US Centers for Disease Control and Prevention (CDC).  This contract modification increased the number of doses of BioThrax that the company can deliver into the Strategic National Stockpile (SNS) during calendar 2010.  This increased volume of available doses of BioThrax is due to consistently high production yields throughout 2010.

“This modification by the CDC to our existing BioThrax procurement contract reinforces, yet again, the US government’s commitment to BioThrax as a critical component of the Strategic National Stockpile and to our nation’s defense against bioterrorism,” said Fuad El-Hibri, chairman and chief executive officer of Emergent.  “This is another example of how we continue to work with our US government partners in establishing BioThrax as the backbone of our readiness against the threat of anthrax and to building a stockpile as rapidly as possible.”

Daniel J. Abdun-Nabi, president and chief operating officer of Emergent, also commented, “The production yields we have been experiencing are a direct result of our commitment to driving innovation in our manufacturing process and to a multi-year initiative focused on process optimization of the existing Building 12 production facility.  We are extremely pleased with the results of our continuous process improvement program for BioThrax and expect this program to drive the maintenance of positive production metrics going forward.”

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.

About BioThrax^®

BioThrax is the only 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 45 million doses of BioThrax.  During that time period, more than 9.6 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.

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; 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 other product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our manufacturing success rates; 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 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.

by Nick Rees on December 8, 2009

Fuad El-Hibri

The Office of the Biomedical Advanced Research and Development Authority has advised Emergent BioSolutions that while BARDA’s Request for Proposal has been canceled, Emergent is encouraged to submit a proposal for the office’s Broad Agency Announcement.

BARDA canceled the RFP for the procurement for rPA vaccines after a technical evaluation panel determined that no proposals submitted by vaccine developers could meet the ProjectBioShield statutory requirement of having the product ready for licensure within eight years.

An amendment issued by BARDA to BAA 09-34 at the same time, however, enable companies to submit proposals to obtain development funding for rPA vaccine candidates, which Emergent has been strongly encouraged to do by BARDA.

Emergent plans to submit its proposal to the BAA by the end of this year, in front of the due date of February 1, 2010 for the proposals.

This announcement also does not impact Emergent’s $400 million procurement with the Centers for Disease Control and Prevention to manufacture and deliver 14.5 million doses of BioThrax for the Strategic National Stockpile.

“With this action, BioThrax remains a critical and long-term countermeasure for the US government,” Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions, said. “In addition, based upon encouragement by the USG, we believe our rPA vaccine is well-positioned to obtain a development contract under this BAA.  Our anthrax franchise solidifies Emergent as a leader in the development and supply of anthrax medical countermeasures.”

BioThrax is currently being delivered under this contract with an expected completion of deliveries by September 2011. BioThrax is the only FDA licensed vaccine for the prevention of anthrax diseases.

“We believe that BioThrax will remain a premier product based on its recent enhancements, such as four-year dating, a reduced vaccination schedule and intramuscular route of administration, together with the potential for a further reduction in the vaccination schedule to a 3-dose primary series with a 3-year boost,” Daniel J.Abdun-Nabi, president and chief operating officer of Emergent BioSolutions, said. “BioThrax continues to be the product of choice for the USG and other customers seeking to address the anthrax threat.”

BARDA and Emergent are also in separate talks for a contract that would see BARDAA fund scale-up and related activities to obtain FDA licensure for large-scale production of BioThrax at Emergent’s new 50,000-square-foot Lansing, Mich., manufacturing facility.

“I am proud that Lansing remains home to America’s first line of defense against what experts say is the single biggest bioterror threat, anthrax,” U.S. Rep. Mike Rogers, MI-08, said. “The good news about the cancellation of this particular proposal is HHS recommitted itself to the Lansing-made anthrax vaccine and has opened a new proposal for a next-generation anthrax vaccine for which Emergent has indicated it will compete.

“Rest assured, I will continue working to strengthen our nation’s existing bioterror preparedness measures and protect national security jobs in Lansing.”

ROCKVILLE, MD, September 26, 2007—Emergent BioSolutions Inc. (NYSE:EBS), announced today that it has signed a three year contract with the U.S. Department of Health and Human Services (HHS), with a total value of up to $448 million.  Components of the contract include:

1. $400 million firm fixed-price for delivery of 18.75 million doses of BioThrax® (Anthrax Vaccine Adsorbed) for inclusion in the strategic national stockpile (SNS);
2. $34 million for receipt of regulatory approval of 4-year expiry dating for BioThrax payable through a combination of a lump-sum payment reflecting a price per dose increase for certain doses delivered prior to approval and an increase in the per dose price to be paid for doses delivered following approval;
3. up to $11.5 million in milestone payments in connection with advancement towards a post-exposure prophylaxis (PEP) indication for BioThrax ,
4. $2.2 million for logistics services and other related support.

The Company anticipates making deliveries for approximately 6 million doses under this contract by year-end 2007.  As a result, the company reaffirms its expectation for full year total revenue growth of 10 to 15 percent, with a bias toward the upper end of the range, and full year positive net earnings.

Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions, stated, “We are honored to continue our longstanding relationship with HHS to provide BioThrax as a critical component of our nation’s biodefense stockpile.  I applaud the dedication and professionalism of the senior leadership within HHS and Biomedical Advanced Research and Development Authority in completing this important step towards enhancing our domestic biodefense infrastructure.  Emergent BioSolutions remains dedicated to working with various government agencies in their commitment to procure medical countermeasures as a primary element of establishing the highest possible levels of biopreparedness.”

Under terms of the contract, HHS will purchase from the company an aggregate of 18.75 million doses of BioThrax through September 2010, for a firm, fixed-price of $400 million.  In the event the company receives U.S. Food and Drug Administration (FDA) approval of the company’s pending supplement to its biologics license application (BLA) to extend the shelf life of BioThrax from three years to four years, the company will receive a lump sum payment reflecting a price per dose increase for certain doses delivered prior to approval and an increase in the price per dose to be paid for doses delivered following the date of approval, with a total value of approximately $34 million.  If FDA approval of 4-year expiry dating is not received during the term of the contract, the company will not be entitled to receive any of the $34 million.  The company submitted its supplement for 4-year expiry dating to the FDA in December 2006 and has been providing additional information to the agency in support of its application.

Under the contract, HHS will also provide up to $11.5 million in connection with advancing the company’s program to obtain a PEP indication for BioThrax.  The PEP indication, which would expand the use of BioThrax beyond the current pre-exposure prophylaxis indication, is designed to permit the administration of BioThrax in combination with antibiotics following exposure to anthrax.  These funds are payable upon the company’s achievement of specific program milestones.  The company anticipates that it will receive $8.8 million of this amount in the fourth quarter of 2007.

In addition, under the contract the company has agreed to provide all shipping services related to delivery of doses into the SNS over the contract term, and will receive payment of an additional $2.2 million.

The contract has been funded with Federal funding through the Project BioShieldSpecial Reserve Fund, which was created by an act of Congress in May 2004.

Previously, Emergent BioSolutions has provided 10 million doses of BioThrax to HHS for inclusion in the SNS under a May 2005 supply agreement for 5 million doses valued at $123 million and a May 2006 contract modification for an additional 5 million doses valued at $120 million.

Conference Call & Webcast
Company management will host a conference call at 9:00 am Eastern today, September 26, 2007 to discuss this announcement.  Interested parties may participate in the live teleconference by dialing 866/383-8008 or 617/597-5341 or via a webcast accessible at www.emergentbiosolutions.com, under “Investors”.  A replay of the teleconference will be available on the company website or by dialing 888/286-8010 or 617/801-6888 and using the passcode 61817264, approximately one hour after the teleconference concludes.  The replay will be available through October 10, 2007.

About BioThrax® (Anthrax Vaccine Adsorbed)
BioThrax is the only FDA-approved vaccine for the prevention of anthrax infection.  It is approved by the FDA as a pre-exposure prophylaxis for use in adults who are at high risk of exposure to anthrax spores.  BioThrax is manufactured from a culture filtrate, made from a non-virulent strain of Baccillus anthracis and contains no dead or live bacteria.  BioThrax is administered by subcutaneous injection in three initial doses followed by three additional doses, with an annual booster dose recommended thereafter.  Since 1998, approximately 20 million doses of BioThrax have been procured by the U.S.government.  During that time period, over 6.5 million doses have been administered to over 1.6 million military personnel.  BioThrax cannot cause anthrax infection.

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 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 performance under our contract with HHS and future payments from HHS to us under the contract, 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 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 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.

ROCKVILLE, MD, April 18, 2007—Emergent BioSolutions Inc. (NYSE: EBS) (EBS) today announced that the U.S. Department of Health and Human Services (HHS) and the U.S. Department of Defense (DoD) issued two separate notices of intent to procure up to a combined total of 22.75 million doses of BioThrax® (Anthrax Vaccine Adsorbed).

In a Presolicitation Notice issued today, HHS stated its intent to procure 10.4 million doses of BioThrax for the Strategic National Stockpile (SNS) with options for up to an additional 8.35 million doses.  HHS announced that it intends to enter sole source negotiations with the company to finalize the procurement and to make an award on or about July 24, 2007.

Separately, DoD issued a Special Notice signaling an anticipated sole source contract award to procure a minimum of 4 million doses of BioThrax, over a base period and 3 optional ordering periods.

“We were very pleased to learn of HHS and DoD’s intent to procure additional doses of BioThrax,” stated Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions Inc.  “These notices indicate a continued commitment by the U.S. Government to Emergent BioSolutions’ FDA-licensed anthrax vaccine for the protection of military personnel and civilians.  We are committed to working with both HHS and DoD to promptly complete these intended procurements to ensure both federal agencies have continued access to and supply of this critical biodefense countermeasure.”

“We compliment the Government’s leadership in following a strategy of acquiring licensed available countermeasures for the highest threat agents, while pursuing next generation development utilizing new and emerging technologies,” continued Mr. El-Hibri. In support of this strategy the company has a next generation anthrax countermeasure development program which includes both BioThrax and rPA-based candidates. This program is designed to meet the next generation requirements of the Government, including: room temperature storage, extended shelf life, novel adjuvants and novel delivery systems.

Since 1998, the company has delivered 19 million doses of BioThrax under contracts with HHS and DoD.

About Emergent BioSolutions Inc.

Emergent BioSolutions Inc. is a biopharmaceutical company focused on the development, manufacture and commercialization of immunobiotics, such as vaccines and therapeutics that induce or assist the body’s immune system to prevent or treat disease.  The company’s biodefense business is focused on developing and commercializing immunobiotics for use against biological agents that are potential weapons of bioterrorism.  The company’s commercial business is focused on developing immunobiotics for use against infectious diseases which pose 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, 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 company’s actual results to differ materially from those indicated by such forward-looking statements, including our performance under existing 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.

###

New contract extends USG’s commitment to purchase BioThrax through 3Q 2011 and is a follow-on to the existing 2007, $448 million contract

ROCKVILLE, MD, October 1, 2008—Emergent BioSolutions Inc. (NYSE: EBS) announced today that it has signed a new, multi-year, firm fixed price contract with the U.S. Department of Health and Human Services (HHS) to supply an additional 14.5 million doses of BioThrax® (Anthrax Vaccine Adsorbed), its FDA licensed anthrax vaccine, for inclusion in the Strategic National Stockpile (SNS).

The total value of this follow-on contract is between $364 million and $404 million, with the higher amount tied to the delivery of product having four-year expiry dating. First deliveries of BioThrax under this new contract are scheduled to begin in 3Q 2009, immediately following the scheduled completion of deliveries under the company’s current $448 million contract to supply 18.75 million doses of BioThrax to the SNS. Final product deliveries under this new contract are anticipated in 3Q 2011.

“This follow-on contract with HHS is continuing evidence of the government’s steadfast commitment to procure critical countermeasures to protect against the threat of bioterrorism in our country ,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions. “We are encouraged that we were able to secure this new procurement for an additional 14.5 million doses with HHS, because it represents a seamless transition from our current contract for the shipment of 18.75 million doses of BioThrax into the SNS. This clearly demonstrates the U.S. government’s commitment to maintaining a strong, domestic industrial base for biodefense medical countermeasures.”

About BioThrax® (Anthrax Vaccine Adsorbed)
BioThrax is the only FDA-licensed vaccine for the prevention of anthrax infection. It is licensed by the FDA as a pre-exposure prophylaxis for use in adults who are at high risk of exposure to anthrax spores. BioThrax is manufactured from a culture filtrate, made from a non-virulent strain of Baccillus anthracis and contains no dead or live bacteria. BioThrax is administered by subcutaneous injection in three initial doses followed by three additional doses, with an annual booster dose recommended thereafter. Since 1998, the U.S. government has procured nearly 32 million doses of BioThrax. During that time period, nearly 7.9 million doses have been administered to more than two million military personnel. BioThrax cannot cause anthrax infection.

About Emergent BioSolutions Inc.
Emergent BioSolutions Inc. is a leading, fully integrated biopharmaceutical company dedicated to one simple mission—to protect life. Emergent develops, manufactures and commercializes immune-related vaccines and biotherapeutics that assist the body’s immune system to prevent or treat infectious and other life threatening diseases. 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 infection. Emergent’s clinical pipeline includes franchises focused on anthrax and botulism, as well as individual program candidates targeting typhoid, tuberculosis, hepatitis B and chlamydia. 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 company’s actual results to differ materially from those indicated by such forward-looking statements, including appropriations for BioThrax procurement under the new SNS contract; appropriations for BioThrax procurement for the SNS under future contracts; our ability to obtain new BioThrax sales contracts with the U.S. government; our plans for future sales of BioThrax; future appropriations for the procurement of BioThrax for the SNS; future appropriations for the funding of development contracts related to our other anthrax-related programs; 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 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 current report on Form 10-Q for the quarter ended June 30, 2008 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.

The company’s submission provides the U.S. Government with the critical option to select a domestic source to meet planned procurement of 25 million doses of rPA vaccine

ROCKVILLE, MD, JULY 31, 2008— Emergent BioSolutions Inc. (NYSE: EBS) announced today that it has submitted a proposal in response to a request for proposal (RFP) issued by the U.S. Department of Health and Human Services (HHS) for a recombinant protective antigen anthrax vaccine (rPA). Emergent’s rPA vaccine candidate, which has completed one Phase II clinical trial, is a reformulated and more stable form of the rPA 102 vaccine originally developed at USAMRIID and is well positioned to be a leading candidate for an award under this RFP.

This RFP is designed to meet the government’s stated goal to procure 25 million doses of an rPA anthrax vaccine for the Strategic National Stockpile (SNS). This contract would be in addition to the $448 million three-year contract awarded to Emergent in 2007 that includes the supply of 18.75M doses of its FDA licensed anthrax vaccine BioThrax to the SNS. In the event that Emergent receives an award under the rPA RFP, doses of rPA procured by HHS would be in addition to the 18.75 million doses of BioThrax being procured by HHS pursuant to the three-year contract. HHS has indicated that any awards under the rPA RFP would be granted at the end of 2008, at the earliest.

“We are very pleased with our submission in response to this RFP and we are confident that our rPA 102 vaccine is a leading candidate to be selected as an advanced rPA anthrax vaccine. Our company is proud of our proven track record of delivering critical biodefense countermeasures to the U.S. government and we believe our reputation as the premiere domestic biodefense supplier, coupled with our development and manufacturing expertise, uniquely situates Emergent to meet HHS’s stated commitment to procure 25 million doses of a recombinant anthrax vaccine for the Strategic National Stockpile,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions.

“Considerable effort and resource have been directed toward improving the stability of the rPA 102 vaccine. Analytical testing as well as animal immunogenicity and efficacy studies indicate the stability of our recombinant protective antigen vaccine candidate has been significantly improved. We are confident that the new, enhanced vaccine formulation will address any stability concerns HHS may have had in the past. The current formulation, we believe, will meet and most likely exceed BARDA stability requirements for an rPA vaccine,” said Dr. James Jackson, senior vice president and chief scientific officer of Emergent BioSolutions.

The company intends to manufacture this rPA anthrax vaccine, as well as BioThrax, in its recently constructed, large-scale manufacturing facility at its Lansing campus. The continued development of this rPA vaccine candidate further solidifies Emergent’s well established franchise of anthrax countermeasures, which now includes:

BioThrax® (Anthrax Vaccine Adsorbed) is the only FDA-approved vaccine to prevent the infection of anthrax. Nearly 2.0 million men and women of the United States military have received the vaccine, and HHS has procured more than 28 million doses of BioThrax for the SNS;

rPA 102, a recombinant anthrax vaccine candidate, which is composed of a purified protein with an alum adjuvant and is designed to induce antibodies that neutralize anthrax toxins;

AVP-21D9, a human monoclonal antibody product candidate being developed as an intravenous post-exposure treatment for patients who present symptoms of anthrax disease; and

AIG, a polyclonal anthrax immune globulin product candidate being developed as an intravenous post-exposure treatment for patients who present symptoms of anthrax disease, is derived from human plasma from individuals who have been vaccinated with BioThrax.

About rPA 102
The vaccine candidate, rPA 102, is based on a recombinant form of the protective antigen protein. This vaccine contains a purified protein (rPA) formulated with an alum adjuvant and is designed to induce antibodies that neutralize anthrax toxins. The vaccine candidate does not cause anthrax infection and is based on the pioneering work of the U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID). rPA 102 has been the subject of two research and development grants totaling approximately $100 million from the National Institute for Allergy and Infectious Diseases (NIAID).

About Emergent BioSolutions Inc.
Emergent BioSolutions Inc. is a leading, multinational biopharmaceutical company dedicated to one simple mission — to protect life. Emergent develops, manufactures and commercializes immunobiotics, consisting of vaccines and therapeutics that assist the body’s immune system to prevent or treat disease. Emergent’s products target infectious diseases and other medical conditions that have resulted in significant unmet or underserved public health needs. The company’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 infection. 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 2008, 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 sales contracts for BioThrax®, rPA 102, AVP-21D9 and AIG with the U.S. government; our plans for future sales of BioThrax, rPA 102, AVP-21D9 and AIG; 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; 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 Quarterly Report on Form 10-Q for the quarter ended March 31, 2008 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.

Acquisition represents important addition to company’s portfolio of anthrax countermeasures

ROCKVILLE, MD., March 6, 2008—Emergent BioSolutions Inc. (NYSE: EBS) announced that today it completed the acquisition of a group of anthrax monoclonal antibodies from AVANIR Pharmaceuticals (NASDAQ:AVNR), including Avanir’s lead product candidate, AVP-21D9.

AVP-21D9 is a human monoclonal antibody product candidate that is being developed as an intravenous treatment for patients who present with symptoms of anthrax disease following exposure to Bacillus anthracis. In non-clinical studies, this candidate demonstrated an ability to protect animals challenged with a lethal dose of inhaled anthrax spores. AVP-21D9 is being developed with funding support from the National Institute of Allergy and Infectious Diseases of the National Institutes of Health (NIAID), including a grant to establish a cGMP manufacturing process and to test efficacy in additional inhalation studies.

“The acquisition of Avanir’s monoclonal anthrax antibodies rounds out our anthrax countermeasure program nicely. In addition to our FDA-approved product, BioThrax? (Anthrax Vaccine Adsorbed), which is indicated for pre-exposure prevention of anthrax in individuals at high risk of exposure to anthrax spores, we are developing a polyclonal anthrax immune globulin therapeutic, which is a human plasma-derived product candidate. Now, as a result of this acquisition, we have another anthrax therapeutic in our product portfolio – a new monoclonal anthrax antibody product candidate that has performed well in proof-of-concept studies,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions. “This transaction reflects our ongoing commitment to develop a full portfolio of countermeasures to strengthen our country’s preparedness in the event of future anthrax attacks.”

The U.S. government is funding the development of, and seeking to procure, two types of treatments for inhalational anthrax disease: polyclonal antibody products, also known as immune globulins, and monoclonal antibody products. Emergent BioSolutions currently is developing a polyclonal anthrax immune globulin (AIG) product, which is being manufactured by Talecris Biotherapeutics, Inc., at its FDA-approved production facilities. Two full-scale lots of this product candidate have been manufactured under current good manufacturing practices at Talecris, and we plan to conduct pivotal human and animal studies in 2008 and 2009, which could position us for a procurement contract as early as next year. NIAID has provided us grant funding of up to $13.4 million for a combination of initiatives relating to our AIG product candidate, including non-clinical efficacy studies and a human safety and pharmacokinetics study.

We intend to pursue additional NIAID development funding for both of our anthrax therapeutic product candidates, and we believe that both therapeutics would be eligible to be procured by the U.S. Department of Health and Human Service for inclusion in the SNS prior to receiving marketing approval, provided that they are deemed to be licensable under Project BioShield.

About Emergent BioSolutions Inc.
Emergent BioSolutions Inc. is a profitable, multinational 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 products target infectious diseases and other medical conditions that have resulted in significant unmet or underserved public health needs. 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. 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, prospects, plans and objectives of management, including clinical trial results and development plans, 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 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 Quarterly Report on Form 10-Q for the quarter ended September 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.