It's in the article.
Posted on: May 13, 2021 at 13:26:34 CT
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In justifying the move, agency officials pointed to several recent studies showing that vaccines are more than 90 percent effective at preventing mild and severe disease, hospitalizations and deaths from Covid-19 in real world settings.
Among them was a study of 6,710 health care workers in Israel, including 5,517 fully vaccinated workers, that found the Pfizer vaccine was 97 percent effective at preventing symptomatic infections among the fully vaccinated, and 86 percent effective at preventing asymptomatic infections among them. (Vaccination rates in Israel are far higher than in the United States, however.)