Flu vaccine not very effective for seniors
Seniors were one of the main groups urged to get a flu shot this season but for many of them, the vaccine didn't work.
http://www.ksdk.com/video/2182975955001/48340612001/Flu-vaccine-not-very-effective-for-seniors
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Flu vaccine not very effective for seniors
Seniors were one of the main groups urged to get a flu shot this season but for many of them, the vaccine didn't work.
effectivenessHealthflu vaccineKSDK
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