September 02, 2020
Rose
Since health officials started tracking it in 2003, effectiveness of the flu shot has varied from year to year, averaging at 40%.
from WebMD Health https://ift.tt/3lHSFEw
September 02, 2020
Rose
Healthy Living, WebMD Health
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from WebMD Health https://ift.tt/3lHSFEw
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