Transcript
LE5HPvwNHGw • Why Doesn’t the Flu Vaccine Always Work?
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Kind: captions
Language: en
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the flu is very serious um it can kill
you
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this is currently what allows influenza
to escape immunity the point is to give
us the best protection possible to what
circulating the whu-oh meets twice a
year to decide on which strains will be
included and then Valenza vaccine once
these strains are chosen they're then
grown in chicken eggs
the first brew is well in eggs and so
this allows us to harvest a lot of virus
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so that meant that the vaccine had less
protection that it could have AG
adaptations have been a problem for a
long long time the good news is now the
first time we have a lot of vaccines
available that are grown using an
entirely different process
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