Anti-vaxxers are posting that vaccines don't block spread or catching Covid. That is utterly false.
—Vaccines markedly prevent symptomatic infections; for mRNAs efficacy = 95%, maintained w/ 3rd shot at ≥ 6 months
—Vaccines markedly reduce spread, ≥ 50% https://twitter.com/erictopol/status/1453753424483258368…
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