Johnson & Johnson’s Vaccine Offers Strong Protection but Fuels Concern About Variants by BY CARL ZIMMER, NOAH WEILAND AND SHARON LAFRANIERE

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The vaccine’s efficacy rate dropped from 72 percent in the United States to just 57 percent in South Africa, where a highly contagious variant is driving most cases.

Published: January 29, 2021 at 02:00PM

from NYT Health https://ift.tt/3thE4U2