MALIK99 MALIK99

25-05-2016
Biology

contestada

the flu vaccine last a short time because the flu virus

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Tallie2006 Tallie2006

31-05-2016

The flu virus mutates is why the flu vaccine lasts a short time.

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Ricesaurus Ricesaurus

22-11-2020

Answer:Normally because the flu virus doesn't last very long because your body is very used to the flu.

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