San Francisco may be first major US city to hit herd immunity, experts say

Posted by on June 8, 2021 5:26 pm
Categories: Global Stories

City still recording small number of Covid cases per day but they don’t appear to be triggering wider outbreaks

San Francisco may have become the first major American city to hit herd immunity to the coronavirus, experts say.

San Francisco is still recording a small number of coronavirus cases, about 13.7 per day, said Dr George Rutherford, professor of epidemiology at University of California, San Francisco, but they don’t appear to be gaining enough of a foothold in the population to trigger wider outbreaks.

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