Tip - What Causes the Flu?

Published  | Submitted by Glenn Ford
What Causes the Flu?

WebMD explains the flu virus, including types, why it's more prevalent in the winter, and what to do to avoid catching it.
Tags: flu, influenza, causes, treatment, virus, contagious, epidemic, pandemic, spread, type A, winter, type B, type C, winter

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Posted: 9 years, 5 month(s) ago

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