New data offer glimpse of efficacy of Oxford-AstraZeneca Covid-19 vaccine

New data offer glimpse of efficacy of Oxford-AstraZeneca Covid-19 vaccine

Studies provide glimpse at efficacy of Covid-19 vaccines from Oxford-AstraZeneca and CanSino

By MATTHEW HERPER AND DAMIAN GARDE AND HELEN BRANSWELL

THIBAULT SAVARY/AFP VIA GETTY IMAGES

The vaccine generated an immune response in a study of roughly 1,000 patients, and all of the side effects were deemed mild or moderate.

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