An Inside Look at the Flu: Beating the Flu Virus
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It took one week for Holly to beat the flu. Her body has produced T-memory cells that will keep her from getting this identical virus again. If the virus mutates, the T-memory cells will not protect... (more info)

It took one week for Holly to beat the flu. Her body has produced T-memory cells that will keep her from getting this identical virus again. If the virus mutates, the T-memory cells will not protect her.

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