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Biology, 24.12.2019 18:31 chrisraptorofficial

Why can you get the flu (influenza) multiple times, unlike most other viruses you only get once? a. your body does not form antibodies against the flu. c. the influenza virus mutates each year. b. influenza is not always caused by the same type of virus. d. the flu is not a true virus.

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Why can you get the flu (influenza) multiple times, unlike most other viruses you only get once? a....
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