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Why this season’s flu is so virulent

Wednesday, January 16, 2013 - 02:01

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)

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Why this season’s flu is so virulent

Wednesday, January 16, 2013 - 02:01