JereneMeOpanglezlu JereneMeOpanglezlu
  • 02-03-2017
  • Health
contestada

Why must a person receive a different flu vaccine each year to be protected against the flu?

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hiimruma
hiimruma hiimruma
  • 02-03-2017
OK so basically the flu shot is a virus itself and we need a different one each time so that we do not become immune.
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