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Pancho Pancho is offline
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Default OT: Vaccine causes virus mutations?

On 07/06/2021 17:20, Commander Kinsey wrote:
Doesn't giving a coronavirus vaccine to everyone increase the chances of
the virus mutating to avoid the vaccine?* So we should be using it
sparingly.


That depends...

Mutation pressure depends on how frequently virons try to establish
themselves in a vaccinated host.

The more vaccinated people there are, the more likely that a single
viron will find a vaccinated host. On the other hand vaccinating people
may reduce the prevalence of disease, the total number of virons. So
less virons come into contact with any host. The expected number of
virons trying to infect a vaccinated host will be a function of both.

A consequence of this is that it *may* be a bad idea to vaccinate in the
middle of a surge. That would depend on a lot of factors which I don't
know the answer to. So I'm just a ****wit on the internet, idly pondering.

Maybe epidemiologists know the answer, but I haven't heard many
discussing it.