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>After a vaccine was fully approved and shown to be unequivocally safe and effective

Nothing developed 15 months ago can be shown to be "unequivocally safe". No matter what your position on COVID vaccines, its simply a matter of fact that there's no way to know the long term effects of something that hasn't been around for long.

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There's not really a mechanism of action for an mRNA vaccine to have side effects that manifest after 15 months with nothing in between; any side effects would manifest themselves quite quickly.

But that's a fair point, "unequivocally" is a strong word. Would you be okay with "safe and unequivocally effective"?

> There's not really a mechanism of action for an mRNA vaccine to have side effects that manifest after 15 months with nothing in between; any side effects would manifest themselves quite quickly.

Unless, the vaccine causes a "reprogramming" of the immune system, like some viruses do.

Have you considered this vector in your analysis?

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