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TexasBushwhacker

(20,792 posts)
13. And no vaccine is 100% effective against viruses that have variants
Wed Apr 14, 2021, 10:07 AM
Apr 2021

That's why the annual flu shot is generally only 50 to 80% effective. All they can do is see what variants of flu are making their way around the world that year and make a vaccine for that/those strains. It DOESN'T mean that getting the flu vaccine is pointless.

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