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Let's put data on why vaccines reduce transmission all in 1 place: Beyond sheer biological plausibility that vaccine-mediated immune responses block viral replication in nose, through which you are most likely to spread the virus, as effectively as blocks elsewhere, data here:
Lancet preprint showed that health-care workers in UK swabbed every two weeks after vaccination had an 86% reduction in asymptomatic infection compared with unvaccinated individuals: papers.ssrn.com/sol3/papers.cf…
Other data in Lancet - health care workers vaccinated had 85% reduction in infection (asymptomatic & symptomatic) 15-28 days after 2nd dose
thelancet.com/journals/lance…
thelancet.com/journals/lance…
