(NPR) Vaccine Refusal May Put Herd Immunity At Risk, Researchers Warn

Vaccine Refusal May Put Herd Immunity At Risk, Researchers Warn



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Vaccine Refusal May Put Herd Immunity At Risk, Researchers Warn







Nearly a third of adults in the U.S. have gotten at least one shot of the COVID-19 vaccine so far, but researchers warn that vaccine refusal may keep the country from reaching herd immunity.



John Tlumacki/The Boston Globe via Getty Images


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John Tlumacki/The Boston Globe via Getty Images











Vaccine Refusal May Put Herd Immunity At Risk, Researchers Warn






One in four Americans say they won't get a coronavirus vaccine. Researchers say it could keep the nation from reaching a critical tipping point.