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how flu virus mutates.

  1. Manmade and Natural Disasters
    This an animated 15 part video series on how a flu virus mutates and spreads under the right conditions. Play the first clip, at the end are the remaining 14 parts. http://www.takepart.com/videos/how-the-flu-virus-mutates/15003 There is some additional info on this website if you are interested.
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