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Animation: Why the Flu Virus Changes and Mutates

January 17, 2018

Flu viruses are quick-change artists. They constantly mutate, and those frequent changes make it hard for our bodies to recognize and fend off the virus. The animation explains why we need a new flu vaccine every year. (Jan. 17)

Flu viruses are quick-change artists. They constantly mutate, and those frequent changes make it hard for our bodies to recognize and fend off the virus. The animation explains why we need a new flu vaccine every year. (Jan. 17)

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