Maine CDC Director Nirav Shah speaks during a press briefing inside the Maine Emergency Management Agency in Augusta in this March 23, 2020, file photo. Credit: Troy R. Bennett / BDN

Another 20 coronavirus cases have been reported in Maine, health officials said Monday.

Monday’s report brings the total coronavirus cases in Maine to 4,356. Of those, 3,910 have been confirmed positive, while 446 were classified as “probable cases,” according to the Maine Center for Disease Control and Prevention.

The agency revised Sunday’s cumulative total to 4,336, up from 4,335, meaning there was an increase of 21 over the previous day’s report, state data show. As the Maine CDC continues to investigate previously reported cases, some are determined to have not been the coronavirus, or coronavirus cases not involving Mainers. Those are removed from the state’s cumulative total.

New cases were reported in Androscoggin (3), Cumberland (1), Kennebec (2), Knox (1), Penobscot (5) and York (9) counties, state data show.

No new deaths were reported Monday, leaving the statewide death toll at 131. Nearly all deaths have been in Mainers over age 60.

So far, 409 Mainers have been hospitalized at some point with COVID-19, the illness caused by the coronavirus. Of those, six people are currently hospitalized, with five in critical care and one on a ventilator.

Meanwhile, 28 more people have recovered from the coronavirus, bringing total recoveries to 3,762. That means there are 463 active and “probable” cases in the state, which is down from 470 on Sunday.

A majority of the cases — 2,453 — 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 237,644 negative test results out of 243,819 overall. Just under 2.2 percent of all tests have come back positive, Maine CDC data show.

The coronavirus has hit hardest in Cumberland County, where 2,161 cases have been reported and where the bulk of virus deaths — 70 — have been concentrated. It is one of four counties — the others are Androscoggin, Penobscot and York, with 594, 220 and 750 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 reported in Aroostook (37), Franklin (48), Hancock (46), Kennebec (181), Knox (29), Lincoln (35), Oxford (59), Piscataquis (7), Sagadahoc (59), Somerset (46), Waldo (69) and Washington (15) counties.

As of Monday evening, the coronavirus has sickened 5,734,075 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 177,118 deaths, according to Johns Hopkins University of Medicine.