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The US Centers for Disease Control and Prevention says transmission of COVID-19 is at high levels in Hancock, Penobscot, Piscataquis and Washington counties.

BAR HARBOR, Maine – Rising COVID-19 cases in Hancock County prompted the National Park Service to reinstate the mask requirement in all indoor spaces in Acadia National Park effective Oct. 15.

The United States Centers for Disease Control and Prevention lists Hancock County as having “high” transmission at the community level.

Three other counties in Maine, Penobscot, Piscataquis and Washington, were also listed as “elevated”. In Monday.

Department of the Interior policy requires county parks with high community levels to require all people in indoor spaces to wear high-quality masks.

The level of COVID-19 transmission in other Maine counties is as follows:

  • Androscoggin
  • franklin
  • Kennebec
  • Oxford
  • Somerset
  • Waldo
  • Aroostook
  • cumberland
  • Knox
  • lincoln
  • sagadahoc
  • york


In August, the US CDC relaxed COVID-19 guidelines, eliminating the requirement for people to quarantine if they encounter someone infected with COVID-19.

Students returned to school in September largely without a mask requirement. But health officials predicted that the return of cold weather and more indoor activity would likely increase transmission of the virus.

But in early October, the number of people in Maine hospitals with COVID-19 reached levels not seen since May.

Nirav Shah, director of the Maine Center for Disease Control, warned that virus rates were rising in the northeast, including Maine, and some people who caught it were going to the hospital.

RELATED: Everything you need to know about COVID-19 and the vaccine in Maine

On Friday, October 17, the Maine CDC reported 1,547 new cases since Tuesday. As of Friday, 214 people were hospitalized with COVID-19, including 38 in intensive care and six on ventilators.

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