02 Apr CDC Study Finds Pfizer- BioNTech and Moderna Vaccines 90% Effective in Real World Conditions
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The study found the Pfizer-BioNTech and Moderna COVID-19 twodose vaccines to be 90% effective at preventing infections two weeks after the second vaccine dose. Additionally, the study found the vaccines to be 80% effective at preventing infections two weeks after one dose.
The study was conducted on 3,950 health care personnel, first responders and other essential and frontline workers who completed weekly COVID-19 testing for 13 consecutive weeks.