I’m laying here with a nasty cold and am curious… I don’t know where our immunity information is stored in our bodies, but why can’t we draw that immunity out of one person and inject it into someone else, and save them from getting sick from many versions of the rhinovirus?
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Common colds and flus change so often that the reality is the vaccines don’t proove to be effective that long. For example you get a new flu vaccine every year because the virus mutates to make previous vaccines less effective.
The second point is your body will ‘forget’ over time you will generally forget about the immunity you have. Just look at the 2 doses and booster COVID-19 vaccines.
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