Learn how Type B Influenza virus has genetic drift, whereas Type A Influenza virus has genetic drift AND shift. Rishi is a pediatric infectious disease physician and works at Khan Academy.
More free lessons at: http://www.khanacademy.org/video?v=tjGGxA7AF9E
These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.
Tagged under: flu,influenza,genetic shift,genetic drift,shift drift,virus,genetic,mutation,pandemic,epidemic
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