How long did the WHO chief scientist suggest that social distancing measures should stay in place?
WHO Scientist Says Herd Immunity Won't Be Achieved This Year
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The World Health Organization's chief scientist highlights that achieving worldwide herd immunity against COVID-19 may require more than just vaccination efforts. In 2021, maintaining social distancing and other safety measures remains crucial. Experts suggest a 70% vaccination rate is necessary for herd immunity, but the high transmission rate of COVID-19 might demand an even higher rate.
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Why might a higher vaccination rate be required for COVID-19 compared to other diseases?
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