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1 shot of Pfizer COVID vaccine cuts infection risk by 70%: Study - Business Insider
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The protection from Pfizer and BioNTech's COVID-19 vaccine increased to 85% after two shots in a study of more than 23,000 UK healthcare workers.
The protection from Pfizer and BioNTech's COVID-19 vaccine increased to 85% after two shots in a study of more than 23,000 UK healthcare workers.