Dr. Ellen Smith from North Decatur Family Medicine answers a reader’s question about the flu.
Q: Why did I get the flu even though I got vaccinated this season?
A: You can still get the flu despite being vaccinated if you were infected prior to the vaccination, since symptoms start one to four days after the flu virus enters the body. Chances are you become infected during the two weeks it took for the vaccination to be fully effective. Another possibility is a different flu strain than the one used to create the vaccine infected you, though the vaccine still offers some protection in this case. The flu shot and hand hygiene are still the best ways to prevent you from contracting the flu.
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