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That's not something that's ever been a problem with vaccines before. Even if you have unshakeable faith in this evidence-free perversion of biological theory,

That's not something that's ever been a problem with vaccines before. Even if you have unshakeable faith in this evidence-free perversion of biological theory, nobody was claiming the vaccines will fail without 100% adoption last year when they launched. Their reception would have been rather different if that had been claimed, wouldn't it? So you can either believe this is true, in which case governments and pharma firms deceived people about the nature of the 'vaccine', or you can believe it's false and they didn't. But you can't believe it's true and it's the other people who are deceivers. That makes no logical sense.

samus 5y ago
It's a general issue with every vaccine against an illness that has a reservoir. The reservoir can be other species (birds and various other animals in case of influenza) or it can be human populations that for various reasons have not eliminated the spread of the illness yet (measles in countries that refuse or make it difficult to vaccinate, polio if not completely eradicated yet). In this reservoir the agent has opportunity to mutate, and it can never be excluded that at some point it makes inroads into populations again where it was eradicated before. Global eradication of diseases has been achieved with smallpox and bovine rinderpest precisely because they had no natural reservoir and all vulnerable populations could be vaccinated. With Coronaviruses the situation is not so simple, but it should at least be possible to eradicate the currently relevant variant.