rpc2zpyv82 rpc2zpyv82

14-04-2021
Biology

contestada

Why do you think that some vaccines, such as the flu vaccine, need to be given every year?

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TheReptiPro TheReptiPro

14-04-2021

Answer:

Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.

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hannahMb46 hannahMb46

14-04-2021

Answer:

Because the virus/sickness would evolve and that vaccine might not protect you.

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