Questions tagged [herd-immunity]

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How close is the U.S. to herd immunity, assuming long-term immunity?

Assuming: infection always results in death or immunity (unproven, but no evidence of repeat infections yet) official COVID-19-related death counts are accurate (142k at the time of this question) ...
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Herd immunity without vaccines? (corona question)

Obviously there is herd immunity against many viruses such as measles because of vaccines. Can we say that there is herd immunity against any particular virus even though people are not getting ...