2 doctors weighed in:

When does the flu shot wear off? How often do you need to get one?

2 doctors weighed in
Dr. Heidi Fowler
Psychiatry
1 doctor agrees

In brief: Influenza

vaccine is recommended annually.
There may still be some protective value the second year - but annual is still recommended.

In brief: Influenza

vaccine is recommended annually.
There may still be some protective value the second year - but annual is still recommended.
Dr. Heidi Fowler
Dr. Heidi Fowler
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