BOSTON (CBS) – Fifteen communities in Massachusetts are now considered high risk for coronavirus infections. The state released an updated color-coded map and data on Wednesday based on average positive test rates.

CHECK: Town By Town Coronavirus Data | Data Map

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Towns and cities are colored red, yellow, green, or gray based on the number of cases.

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Communities in red have the highest risk level. As of Wednesday, they include Chelsea, Everett, Framingham, Holliston, Lawrence, Lynn, Marlboro, Nantucket, New Bedford, Revere, Saugus, Tyngsboro, Winthrop, Worcester, Wrentham.

Coronavirus rates in Mass as of 9/23/20 (Image credit DPH)

Red indicates municipalities with more than eight cases of COVID per 100,000 people, yellow indicates municipalities between four and eight cases per 100,000, which is considered a moderate risk level, green indicates municipalities with less than four cases per 100,000, gray indicates less than five total cases of COVID-19 reported in the most recent 14-day period.

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Last week Dedham, Lynnfield, Monson and Plainville were listed in the red zone.