Uploaded: 2012-10-09T04:00:00-07:00
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Description: Dr. Joseph Bresee, M.D. of the Centers for Disease Control and Prevention explains the difference between the H1N1 virus and the newest strain of swine flu, the H3N2 variant virus.

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Dr. Joseph Bresee, M.D. of the Centers for Disease Control and Prevention explains the difference between the H1N1 virus and the newest strain of swine flu, the H3N2 variant virus.

New Strain of Swine Flu