BOSTON (CBS) – Sixteen communities in Massachusetts are now considered high risk for coronavirus infections, after the state began using a new method to assess transmission rates.

This week’s color-coded data, adjusted to better fit a community’s population, also shows 91 yellow communities, 79 green communities, and 165 grey communities.

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CHECK: Town By Town Coronavirus Data

As of Friday, the communities in the high-risk red zone include: Brockton, Chelsea, Everett, Fall River, Fitchburg, Lawrence, Lowell, Lynn, Methuen, New Bedford, Norfolk, Revere, Seekonk, Somerset, Springfield and Westport.

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The change in metrics is aimed at keeping students in schools.

In last week’s report, using different metrics, 121 communities were listed in the red zone.

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Health officials reported 2,038 new confirmed coronavirus cases and 21 additional deaths in Massachusetts on Friday. There were 86,357 total new tests reported.