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Another eight cases of the new coronavirus have been detected in Maine, health officials said Monday. It’s the smallest daily increase in coronavirus cases recorded over the past month.

There have now been 3,423 cases across all of Maine’s counties since the outbreak began here in March, according to the Maine Center for Disease Control and Prevention. That’s up from 3,415 on Sunday.

Of those, 3,034 have been confirmed positive, while 389 are likely positive, according to the Maine CDC.

New cases were tallied in Cumberland (5), Hancock (1), Penobscot (2) and Waldo (2) counties. The change in county-level data may vary new case reports as the Maine CDC continues to investigate cases.

No new deaths were reported Monday, leaving the statewide death toll at 109. Nearly all deaths have been in Mainers over age 60.

So far, 359 Mainers have been hospitalized at some point with COVID-19, the illness caused by the coronavirus. Of those, 21 people are currently hospitalized, with nine in critical care and four on ventilators.

Meanwhile, 15 more people have recovered from the coronavirus, bringing total recoveries to 2,787. That means there are 527 active and likely cases in the state, down from 539 on Sunday.

A majority of the cases — 1,805 — have been in Mainers under age 50, while more cases have been reported in women than men, according to the Maine CDC.

As of Monday, there have been 112,180 negative test results out of 116,891 overall. Just over 3.5 percent of all tests have come back positive, Maine CDC data show.

The coronavirus has hit hardest in Cumberland County, where 1,810 cases have been confirmed and where the bulk of virus deaths — 64 — have been concentrated. It is one of four counties — the others are Androscoggin, Penobscot and York, with 495, 118 and 549 cases, respectively — where “community transmission” has been confirmed, according to the Maine CDC.

There are two criteria for establishing community transmission: at least 10 confirmed cases and that at least 25 percent of those are not connected to either known cases or travel. That second condition has not yet been “satisfied” in other counties.

Other cases have been detected in Aroostook (24), Franklin (40), Hancock (18), Kennebec (145), Knox (25), Lincoln (25), Oxford (42), Piscataquis (4), Sagadahoc (34), Somerset (30), Waldo (58) and Washington (3) counties. Information about where another two cases were detected wasn’t immediately available Monday morning.

As of Monday morning, the coronavirus has sickened 2,897,613 people in all 50 states, the District of Columbia, Puerto Rico, Guam, the Northern Mariana Islands and the U.S. Virgin Islands, as well as caused 130,007 deaths, according to Johns Hopkins University of Medicine.

Correction: An earlier version of the story misstate the number of confirmed positive and likely positive cases.