Last week, the number of cities and towns flagged as high risk was 110, which was down from 153 the week before.
Risk designations — which are colored, grey, green, yellow and red based on infection levels — are determined using several new metrics for three population categories: communities with a population of less than 10,000; between 10,000 and 50,000; and greater than 50,000For communities with fewer than 10,000 residents, “grey†will be assigned if there are 10 total cases or fewer; “green†if there are up 15 cases; “yellow†if there are up to 25 cases; and “red†if there are more than 25 casesFor communities with between 10,000 and 50,000 residents, “grey†will be assigned if there are 10 total cases or fewer; “green†if there are less than 10 average cases per 100,000 residents and more than 10 cases; “yellow†if there are 10 or more cases per 100,000 residents or a test positivity rate of 5% or more; and “red†if there are 10 or more cases per 100,000 residents and a test positivity rate of 5% or moreAnd for communities with more than 50,000 residents, “grey†will be assigned if there are 15 total cases or fewer; “green†if there are less than 10 average cases per 100,000 residents and more than 15 cases; “yellow†if there are 10 or more cases per 100,000 residents or a test positivity rate of 4% or more; and “red†if there are 10 or more cases per 100,000 residents and a test positivity rate of 4% or more