Johnson & Johnson’s Vaccine Offers Strong Protection but Fuels Concern About Variants

Health
By BY CARL ZIMMER, NOAH WEILAND AND SHARON LAFRANIERE from NYT Health https://ift.tt/3thE4U2
via IFTTT Clinical Trials, Vaccination and Immunization, Coronavirus (2019-nCoV), your-feed-healthcare 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.

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