"One recent study among healthcare workers in Israel estimated that the Pfizer-BioNTech vaccine is 97% effective against symptomatic infection and 86% effective against asymptomatic infection." [1]
1. CDC Says It's Time To Relax Guidance On Masks --- Social distancing no longer urged in most cases for those who are fully vaccinated
Abbott, Brianna. Wall Street Journal, Eastern edition; New York, N.Y. [New York, N.Y]14 May 2021: A.1.
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