Prepare For A Return Of Swine Flu In The Fall, Says Expert

We need to be prepared for a likely return of the H1N1 virus in the fall, says Anthony Fauci, Director at the National Institute of Allergy and Infectious Diseases. As environmental factors such as such as cooler temperatures and a drier climate change in the fall, "there is clearly the possibility, if not the likelihood, that we will see, to a greater or lesser degree, a return of this." (0:40)
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