Tag: Mayo Clinic

NC COVID-19 Threat-Free Index for the week ending March 29, plus a discussion of herd immunity

By Jon Sanders Raleigh, NC – Here is the NC Threat-Free Index for the week ending March 29: As of March 29, there were 876,108 North Carolinians presumed to be recovered from COVID-19 Active cases comprised just 2.5% of NC’s…

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