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September 8, 2005

MedImmune Expands Executive Ranks With Four New Vice Presidents

GAITHERSBURG, Md., Sept. 8 /PRNewswire-FirstCall/ -- MedImmune, Inc. (Nasdaq: MEDI) announced today that it has filled three newly established leadership roles within its growing organization with senior industry experts, and has promoted Kevin Rooney to vice president, oncology sales and marketing. Those joining MedImmune in new roles include Kevin McNelly as vice president, supply chain operations, James Miller as vice president, international, business analysis and new products, and Mauricio Vargas-Cortes, Ph.D. as vice president, project management.

"Bolstering our senior leadership with seasoned industry professionals from within and outside of MedImmune directly supports our ability to successfully deliver on our long-term plans for the business," said David M. Mott, chief executive officer and president. "These individuals have the skills and talent to complement our existing management team as we provide commercial and product development support to assure continued growth of our leading products, seek to bring to market new and improved products, elevate science within the company, and address our additional five-year strategic priorities."

Kevin McNelly was appointed vice president, supply chain operations in July 2005. In this role, he leads MedImmune's supply chain activities, and is responsible for the department's overall strategic direction, emphasizing continued operational integration and development of scalable, customer- focused solutions. Mr. McNelly has more than 17 years of experience in global operations management including manufacturing, logistics and distribution, purchasing, information technology and supply chain management across multiple industries. Immediately prior to joining MedImmune, Mr. McNelly was vice president, solution management for Manugistics. He began his career at The Clorox Company and went on to hold increasingly responsible positions at Smith & Nephew, Avon and Barr Laboratories. Mr. McNelly holds a bachelor's degree in mechanical engineering from the Rose-Hulman Institute of Technology in Indiana.

As vice president of international, business analysis and new products, James Miller will be responsible for setting the strategic direction for MedImmune in international markets, supporting the commercialization efforts of current and future products through business analyses, as well as leading the commercial development of new products from research to launch. Mr. Miller recently joined MedImmune from KTM Consulting where he served as executive director, international management and strategic planning. Prior to joining KTM, he worked for Abbott Laboratories for 12 years in several positions of increased responsibility including vice president, international marketing and business development, vice president/regional director, Europe, and general manager, Abbott Korea. Mr. Miller holds a bachelor's degree in accounting from Hillsdale College in Michigan, and he is a certified public accountant.

Dr. Mauricio Vargas-Cortes joined MedImmune as vice president, project management in August 2005. In this position, he is responsible for the company's project planning and alliance management efforts, as well as guiding the organization's ongoing development and implementation of project management processes. Prior to joining MedImmune, Dr. Vargas-Cortes held a number of project management and clinical development positions with Eli Lilly and Company, and worked at GlaxoSmithKline for eight years, holding positions of increasing responsibility. His background includes research positions at the Immunobiology Research Institute and the University of Massachusetts. Dr. Vargas-Cortes received bachelor of science degrees in microbiology and biology from the University of Los Andes in Bogota, Colombia and his Ph.D. in immunology from the University of Stockholm in Sweden.

Kevin Rooney, newly named vice president, oncology sales and marketing served as MedImmune's senior director of marketing for Synagis prior to his promotion in July 2005. In his new position, he will be responsible for strategic oversight of the sales and marketing organization for MedImmune's marketed oncology product, Ethyol. Prior to joining MedImmune in July 2003, Mr. Rooney worked for Bristol-Myers Squibb Company, where he held a number of increasingly responsible positions in both sales and marketing management. He also had held various positions at Glaxo Wellcome Inc., Burroughs Wellcome Company and The Upjohn Company. Mr. Rooney received his master's degree in management from Northwestern University and his bachelor's degree from the University of Virginia.

About MedImmune

MedImmune strives to provide better medicines to patients, new medical options for physicians, rewarding careers to employees, and increased value to shareholders. Dedicated to advancing science and medicine to help people live better lives, the company is focused on the areas of infectious diseases, cancer and inflammatory diseases. With approximately 2,000 employees worldwide, MedImmune is headquartered in Maryland. For more information, visit the company's website at http://www.medimmune.com.

This announcement may contain, in addition to historical information, certain forward-looking statements that involve risks and uncertainties. Such statements reflect management's current views and are based on certain assumptions. Actual results could differ materially from those currently anticipated as a result of a number of factors, including risks and uncertainties discussed in MedImmune's filings with the U.S. Securities and Exchange Commission. The company is developing several products for potential future marketing. There can be no assurance that such development efforts will succeed, that such products will receive required regulatory clearance or that, even if such regulatory clearance were received, such products would ultimately achieve commercial success.

SOURCE MedImmune, Inc.

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