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Want COVID-19 herd immunity? Get 40% of population vaccinated, says ex-FDA chief Gottlieb

Former FDA Commissioner Scott Gottlieb has a rough estimate for the number of vaccinated people to reach herd immunity for COVID-19. Because about 20% of people may have already been infected by the time a COVID-19 vaccine is launched, “we’d need to get perhaps 40% utilization to achieve herd immunity,” he tweeted Tuesday. How does… Read More »