Nirav Shah, director of the Maine Center for Disease Control and Prevention, speaks at a news conference in Augusta in this April 28, 2020, file photo. Credit: Robert F. Bukaty | AP

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Another 18 cases of the new coronavirus have been detected in Maine, health officials reported Monday.

There have now been 2,588 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 2,570 on Sunday.

Of those, 2,305 have been confirmed positive, while 283 are likely positive, according to the Maine CDC.

[Our COVID-19 tracker contains the most recent information on Maine cases by county]

No new deaths were reported Monday, leaving the statewide death toll at 99.

So far, 301 Mainers have been hospitalized at some point with COVID-19, the illness caused by the coronavirus. Of those, 37 people are currently hospitalized, with 12 in critical care and seven on ventilators.

Meanwhile, 1,891 people have fully recovered from the virus, meaning there are 598 active and likely cases in the state, according to the Maine CDC. That’s down from 607 on Sunday.

About half of the cases have been in Mainers over age 50, while more cases have been reported in women than men, according to the Maine CDC.

As of Monday, there have been 63,790 negative test results out of 67,290 overall. About 5 percent of all tests have come back positive, Maine CDC data show.

The coronavirus has hit hardest in Cumberland County, where 1,311 cases have been confirmed and where the bulk of virus deaths — 56 — have been concentrated. It is one of four counties — the others are Androscoggin, Penobscot and York, with 376, 101 and 428 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 (10), Franklin (36), Hancock (12), Kennebec (131), Knox (21), Lincoln (20), Oxford (31), Piscataquis (1), Sagadahoc (30), Somerset (24) Waldo (53) and Washington (1) counties. Information about where another two cases were detected wasn’t immediately available Monday.

As of Monday morning, the coronavirus has sickened 1,946,555 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 116,933 deaths, according to Johns Hopkins University of Medicine.

Watch: What Maine is doing to expand contact tracing

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