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A member asked:
How long does a flu shots last?
6 doctors weighed in across 2 answers
1 Year: Influenza vaccines are given once a year. Elderly patients, health care workers, immunocompromised patients, and patients with lung disease should be sure to get the vaccine because they are at greater risk, but it's also recommended that healthy adults get the vaccine yearly.
Answered 12/10/2014
6.3k views
Designed for season: The flu shot is designed to last for a given season during which a given strain of virus, e.g. HxNy, is present.
Answered 6/11/2017
662 views
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