Moderna and Pfizer vaccines 'highly effective' at preventing infections in CDC study

(Image credit: RADEK MICA/AFP via Getty Images)

published 29 March 2021

Moderna's and Pfizer's COVID-19 vaccines have been found to be "highly effective" under real-world conditions in a new CDC study.

Centers for Disease Control and Prevention researchers in a study found that two COVID-19 vaccine doses prevented 90 percent of infections by two weeks after the second dose, while one dose also prevented 80 percent of infections after two weeks, The New York Times reports.

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"The authorized mRNA COVID-19 vaccines provided early, substantial real-world protection against infection for our nation’s health care personnel, first responders, and other frontline essential workers," CDC director Rochelle Walensky said, adding that the findings "should offer hope to the millions of Americans receiving COVID-19 vaccines each day and to those who will have the opportunity to roll up their sleeves and get vaccinated in the weeks ahead."

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Brendan worked as a culture writer at The Week from 2018 to 2023, covering the entertainment industry, including film reviews, television recaps, awards season, the box office, major movie franchises and Hollywood gossip. He has written about film and television for outlets including Bloody Disgusting, Showbiz Cheat Sheet, Heavy and The Celebrity Cafe.

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