COVID-19 vaccines: What does 95% efficacy actually mean?
COVID-19 vaccines: What does 95% efficacy actually mean?
Feb 11, 2021
livescience.com
The first big real-world study of the Pfizer/BioNTech vaccine to be independently reviewed shows the shot is 94% effective at preventing COVID-19, in a potentially landmark moment for countries desperate to end lockdowns and reopen economies https://reut.rs/3bDTDxd | Reuters
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