The risk of getting the flu rises about 16% every 28 days after vaccination, according to a study by Kaiser Permanente Northern California ...

Will Your Flu Shot Weaken as Flu Season Drags On?

By HAMADI February 27, 2019
gloved hand with syringe of flu vaccine

The risk of getting the flu rises about 16% every 28 days after vaccination, according to a study by Kaiser Permanente Northern California researchers.



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