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Many factors to flu
Dec. 3: Dr. Jeffrey Shaman, Columbia University, tells NBC’s Robert Bazell why flu comes in the winter and if the weather has anything to do with it.
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Nightly News:   Many factors to flu
Season 2012 : Episode 1203
Dec. 3: Dr. Jeffrey Shaman, Columbia University, tells NBC’s Robert Bazell why flu comes in the winter and if the weather has anything to do with it.
Aired: 12-12-03
Views: 428

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