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        Part of NOVA scienceNow
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        NOVA scienceNOW | Genetically Engineering the Avian Flu

        Examine the threat of a virus being spread from birds to humans, and then from humans to humans, in this video segment adapted from NOVA scienceNOW. It details the mechanisms viruses use to infect cells, and explores how mutations in a virus may change its virulence and how it can spread. It also looks at work being done with a re-created flu virus—from the deadly 1918 strain—that may help prevent future flu pandemics.

        Visit the program page here.

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