What do you mean by this? Have the vaccines been proven to be very, very effective in preventing COVID? I know natural immunity has been proven to be very, very effective in preventing a reoccurrence, but have the vaccines? I've seen where they are effective at lessening the severity, but not sure I've seen anything recently that shows they are that effective in preventing. That was the promise at the beginning, but I don't think the data has supported that, has it?
Vaccines effective in preventing symptomatic COVID-19 in health care workers
(HealthDay)—COVID-19 vaccines are highly effective under real-world conditions in preventing symptomatic disease in health care personnel, according to a study published online Sept. 22 in the New England Journal of Medicine.
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