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All posts tagged "I knew that the Covid-19 vaccine was working. Now we know more. -Coronavirus facts and fiction-CNN"

Health4 years ago

I knew that the Covid-19 vaccine was working. Now we know more. -Coronavirus facts and fiction

Twenty-one days after the first vaccination, the chances of a new Covid-19 infection were reduced by 65%, according to the results of a COVID-19 infection survey...