Coronavirus

Mass. Town-by-Town COVID Map Changes Again, Leaving Far Fewer Communities in Red

Just 16 Massachusetts communities will be in the red category that signifies high risk for COVID-19 transmission, after 121 were last week

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Massachusetts changed which communities it considered at high risk of coronavirus transmission, which dropped the number from 121 to 16 on Friday. Officials said the change allows more schools to hold in-person classes.

CORRECTION (Nov. 6, 2020, 5:15 p.m.): An earlier version of this story gave the incorrect number of communities in the red in Friday's report. There are 16.

The data that goes into Massachusetts' town-by-town coronavirus risk map was Friday.

The new data accounts for population size, putting just 16 Massachusetts communities in the red category that signifies high risk for COVID-19 transmission, officials said. In last week's report, there were 121 communities in the red, which is more than one-third of all the state's cities and towns.

This week, there will also be 91 communities in yellow, 79 green and 165 in the lowest-risk grey category. See the town-by-town data here.

It's the third time the map has changed in as many weeks. Its release was pushed back to Friday on Thursday afternoon, hours before it was supposed to be released.

To qualify for the red category under the new metrics, communities with populations under 10,000 must have more than 25 cases. For mid-size communities of between 10,000 and 50,000 people, they must have an average of more than 10 cases per 100,000 people and a positive test rate of more than 5%. And for larger communities of greater than 50,000 people, they must have more than 10 cases per 100,000 people and a positive test rate of more than 4%.

Mass. Department of Health
Massachusetts' new metrics for high risk of coronavirus transmission, effective Friday, Nov. 6, 2020.

Under the old metrics, communities with more than 8 cases per 100,000 translated to being high risk and having a red shading on the map.

Friday's change better accounts for communities that test at higher rates, officials said.

"The new metric is informed by data used around the country, including other states in the northeast and mid-Atlantic region," Secretary of Health and Human Services Marylou Sudders said at a news conference Friday.

Mass. Gov. Charlie Baker addresses 252 new COVID-19 cases among schools, outlines the new coronavirus rules put into effect on Friday in an effort to reduce statewide infection numbers.

She and other officials tied the change to keeping students in school. Schools are expected to go remote only if their community is in red, though control is ultimately left up to local officials.

"This is another example, based on a growing body of evidence, that says that schools are not spreaders," Gov. Charlie Baker said.

The number of cities in the red on the coronavirus risk map had been rising rapidly in the last month. Last week's 121 communities was a 57% rise from the 77 the week before.

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