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A 46-year-old female asked:

Will a flu shot last a full 5 months? i thought about getting it now ( oct) but want to make sure it will last till end of march when flu season ends.

1 doctor answer • 3 doctors weighed in
Dr. James Ferguson
Dr. James Fergusonanswered
Pediatrics 48 years experience
Yes: The antibodies generated by seasonal flu vaccine will last for years against the strains in the vaccine.People get confused about protection, because in a given season, the vaccine can only cover 3-4 strains, while there may be a new strain emerg that is not in the vaccine.Waiting until late in the fall only increases your risk you will be unprotected against an early exposure.
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Dr. Holly Maes
Dr. Timothy Silver
Dr. Holly Maes and another doctor agree2 doctors agree

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Last updated Nov 13, 2014

Found in:

Flu (influenza)

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