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Why Do We Need A New Flu Shot Every Year?

4,121 ビュー • 01/17/24
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samer kareem
samer kareem
10 加入者
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New flu vaccines are released every year to keep up with rapidly adapting flu viruses. Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. After vaccination, your immune system produces antibodies that will protect you from the vaccine viruses.

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自動再生

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00:00:00
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1,904 ビュー . 01/17/24 samer kareem
Watch the difference between first time and the recent time getting flu shot of this teenager.
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