Re: Coronavirus
The fact that the question arises with each new variant of not working with current vaccines, should be concerning, in that it highlights the possibility of a new variant that dodges current immunity from whatever mechanism, in the same way seasonal flu does.
Until Covid and it's variants are eradicated, that risk will always be there.
A new variant might even affect the young and strong to a greater extent, in the same way "Spanish flu", affected those younger and stronger.
Scary, but possible scenarios, and ones that have previously occurred.
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