nprnews_____ = ||| lubuntu at wor3 89S7|||AstraZeneca Vaccine Is Effective Against COVID-19, Phase III Study Says||| kickerpage = |||no kicker pagenpr for NPRNEWS||| summarynpr = |||Results of the trial, which involved more than 32, 000 volunteers, showed two doses of the vaccine administered four weeks apart had an efficacy of 79% at preventing symptoms of COVID-19.

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Results from a Phase III trial show the Oxford AstraZeneca COVID-19 vaccine can be 79% effective at preventing symptoms of COVID-19.



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Finnbarr Webster/Getty Images

The Coronavirus Crisis

AstraZeneca Vaccine Is Effective Against COVID-19, Phase III Study Says

Results of the trial, which involved more than 32,000 volunteers, showed two doses of the vaccine administered four weeks apart had an efficacy of 79% at preventing symptoms of COVID-19.