Individuals who get the flu vaccine lose their immunity to the H1N1 influenza virus in about two years, according to a new analysis.
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Immunity from H1N1 flu vaccine wears off rapidly
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Author Clint Nielsen
Clint is a dad and husband trying to stay in shape. He's also a highly opinionated fitness enthusiast and author of Reveal The Steel. Follow him on: Instagram, Twitter, Facebook and Google+