More than 98% of US residents now live in an area where there is a “high” or “su…
More than 98% of US residents now live in an area where there is a “high” or “substantial” risk of Covid-19 community transmission, up from 19% of residents only a month ago. This sharp turn has been driven in large part by the highly infectious Delta variant and low vaccination rates in many regions.
The US Centers for Disease Control and Prevention measures community transmission using two metrics — the number of cases per 100,000 people and the test positivity rate, both measured over the previous seven days.
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