Maine CDC Director Nirav Shah speaks during a press briefing at the Maine Emergency Management Agency in Augusta in this March 23, 2020, file photo.

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Another 65 cases of the new coronavirus have been confirmed in Maine, the largest single-day increase the state has seen so far.

There are now 698 cases spread across 15 of Maine’s counties, Maine Center for Disease Control and Prevention Director Nirav Shah said at a Monday press conference. That’s up from 633 cases on Sunday.

Of those, 124 Maine residents have been hospitalized at some point with COVID-19, the illness caused by the coronavirus, including 61 patients who are currently hospitalized throughout the state, Shah said. Of those 61 patients, 22 are in intensive care unit beds and nine are on ventilators.

Meanwhile, 273 Mainers have fully recovered from the virus.

The statewide death toll stands at 19, according to the Maine CDC. The latest deaths, involving a man in his 80s from York County and a woman in her 70s from Cumberland County, were confirmed Saturday.

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

Of the 65 new cases confirmed on Monday, 48 are related to long term care facilities, Shah said. Thirteen of those patients are health care workers and 35 are residents of those facilities.

“As soon as we detect even the faintest light of an outbreak at a long term care facility, we recommend universal testing across all staff and residents,” Shah said. He added that many of the cases associated with long term care facilities are patients who do not have symptoms.

That includes Tall Pines Retirement and Healthcare Community in Belfast, where 23 individuals affiliated with the facility have tested positive for COVID-19, including 19 residents and four staff members. Two individuals affiliated with the facility have died, Shah said.

At Maine Veterans’ Homes facility in Scarborough, 26 residents and six staffers affiliated with the facility have tested positive, Shah said.

Fifty-five residents of the Augusta Center for Health and Rehabilitation have also tested positive, including 41 residents and 14 staff members.

In total, 110 health care workers in the state have tested positive for COVID-19 as of Monday. Shah said it was difficult to know if those health care workers contracted the disease in a facility or in the community.

Watch: 283 ventilators are not being used yet in Maine

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Of the 314 ICU beds in the state, 158 were available as of Monday, Shah said. Of the 328 total ventilators, 283 are available. There are also 234 alternative ventilators available in the state.

A majority of the cases have been in Maine residents over age 50, while they are evenly split between women and men, according to the Maine CDC.

So far, the coronavirus has hit hardest in Cumberland County, where 299 cases have been confirmed and the bulk of the state’s deaths from the virus have been concentrated. It is one of only three counties — the others are Penobscot and York, with 34 and 151 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 Androscoggin (28), Aroostook (2), Franklin (8), Hancock (5), Kennebec (78), Knox (12), Lincoln (10), Oxford (13), Sagadahoc (15), Somerset (8), Waldo (29) and Washington (1) counties. Information about where another five cases were detected was not immediately available Monday morning.

The only county without a confirmed case is Piscataquis.

As of Monday afternoon, the coronavirus has sickened 572,169 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 23,070 deaths, according to Johns Hopkins University of Medicine.

Watch: Nirav Shah on tracing the origins of coronavirus cases in Maine

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