Re:What the Omicron wave is revealing about human immunity
by Izkata on Friday February 04, 2022 @09:59AM
(#30207530)
No, they were very effective at preventing symptomatic covid. This can mean either preventing infection or not preventing infection but just stopping symptoms. The trials that came up with that 94% efficacy never tested for which of these two outcomes it was, and it turns out it was mostly the second one, which allows for asymptomatic spreading.
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Re:What the Omicron wave is revealing about human immunity
by jmckib on Friday February 04, 2022 @02:38PM
(#30211842)
No, the vaccines were very effective at preventing any infection, both symptomatic and asymptomatic. There were studies done by giving the participants regular covid tests, usually once a week, so they would catch asympomatic cases as well.
Here are the conclusions from a meta-study from July 2021:
> In fully vaccinated individuals, VE against symptomatic and asymptomatic infections was 80–90% in nearly all studies.