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Why this season's flu is so virulent
This year's predominant flu strain is influenza A, H3N2, an especially nasty virus. Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, explains how it makes you sick and how you can avoid it. (January 17, 2013) From: ReutersTV Views: 1449 7 ratings Time: 02:02 More in News & Politics