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June 19, 2003

MedImmune Announces 2003 Business Review Meeting With Investors and Analysts

GAITHERSBURG, Md., June 19 /PRNewswire-FirstCall/ -- MedImmune, Inc. (Nasdaq: MEDI) announced today that its senior management will host a Business Review Meeting on June 27, 2003 at the Gaithersburg Marriott Washingtonian Center in Gaithersburg, Maryland. At the meeting, MedImmune's senior executives will review the company's development pipeline and marketed products, including an overview of its launch plans for FluMist(TM) (Influenza Virus Vaccine Live, Intranasal), the first influenza vaccine delivered as a nasal mist available in the United States for healthy people, which was recently approved for marketing by the U.S. Food and Drug Administration.

Investors and the general public may listen to a live webcast of the meeting via the Investor Relations page on MedImmune's website at www.medimmune.com. Windows Media is needed to access the presentation, which can be downloaded prior to the meeting from MedImmune's website. An archive of the meeting will be available until July 11, 2003.

About MedImmune

MedImmune is a leading biotechnology company focused on researching, developing and commercializing products to prevent or treat infectious disease, autoimmune disease and cancer. MedImmune actively markets three products, Synagis(R) (palivizumab), Ethyol(R) (amifostine) and CytoGam(R) (cytomegalovirus immune globulin intravenous (human)), and has additional products in clinical testing. MedImmune employs approximately 1,700 people, is headquartered in Gaithersburg, Maryland, and has additional operations in Frederick, Maryland, as well as Pennsylvania, California, the United Kingdom and the Netherlands. For more information on MedImmune, visit the company's website at www.medimmune.com.

This announcement and the event described in 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 the company'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.
    -0-                             06/19/2003
    /CONTACT:  Investors: William Roberts, +1-301-527-4358, or John Filler,
+1-240-632-4086, or Media: Jamie Lacey, +1-240-632-4035, all of MedImmune,
Inc./
    /Web site:  http://www.medimmune.com/
    (MEDI)

CO:  MedImmune, Inc.
ST:  Maryland
IN:  MTC BIO HEA
SU:  CCA


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0792 06/19/2003 13:00 EDT http://www.prnewswire.com