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Title: HPA - Infections | Topics AZ | Influenza
Description: Influenza. Influenza or 'flu' is a respiratory illness associated with infection by influenza virus. The influenza virus was first identified in 1933.
Date Added: 2/18/2004 10:28:12 AM
URL: http://www.hpa.org.uk/infections/topics_az/influenza/flu.htm
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