Large Study Confirms COVID Vaccines Are Working in the U.S., Reducing Risk of Infection by 90%

Large Study Confirms COVID Vaccines Are Working in the U.S., Reducing Risk of Infection by 90%

People-News·2021-03-30 14:04

Pfizer-BioNTech COVID-19 vaccine

A woman receiving a COVID-19 vaccine

| Credit: FRANK AUGSTEIN/POOL/AFP via Getty

Pfizer and Moderna's vaccines are "highly effective" at reducing the risk of infection from COVID-19, according to the first large study of how Americans who have received a vaccine have fared in the U.S. outside of a clinical trial.

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