Why you should get a flu shot each year

Posted at 8:50 AM, Oct 13, 2015
and last updated 2015-10-13 12:44:26-04

Researchers are working to develop a single shot that can block every strain of flu, and possibly even one that lasts longer than a year.

But until that happens, people should get annual flu shots to prevent getting the virus. Watch the video to find out why this is necessary.




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