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Marina86 [1]
3 years ago
7

Why does a person have to get a flu shot every year? Why isn't one flu shot for life enough?

Biology
2 answers:
AURORKA [14]3 years ago
6 0

Answer:

because every year there is a new strain of flu

Explanation:

Furkat [3]3 years ago
3 0

Answer:

Because you’ll get sick

Explanation:

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