A plea for people to not cut their own hair during self isolation from the coronavirus hangs in the window Guys & Dolls Barber and Beauty Lounge on Main Street in Searsport.

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Maine had 633 cases of the coronavirus as of mid-morning Sunday, an increase of 17 cases over Saturday’s count of 616.

The Maine Center for Disease Control and Prevention reported no additional deaths from COVID-19 as of Sunday at 10:30 a.m. The current death toll is 19.

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

Some 120 patients have been hospitalized at some point during their illness, while 266 patients have recovered from COVID-19.

Fifty-eight Mainers with confirmed cases of COVID-19 are currently hospitalized, the CDC said Sunday, with 22 of them in hospital intensive care units. Of 334 ventilators in the state, 267 are available. There are also 232 alternative ventilators to treat coronavirus patients, according to the CDC.

Some 165 of the state’s 306 ICU beds are available, the CDC said.

Coronavirus cases have been reported in 15 out of 16 counties in Maine. Piscataquis County remains the only one without any confirmed COVID-19 cases.

Community spread of the virus has been found in Cumberland, York and, most recently, Penobscot counties. Community spread means the virus is circulating among people who have not traveled to other places that have seen outbreaks or have not been in regular contact with other people known to be infected.

The virus is also spreading rapidly in congregate living settings across the state, with at least five long-term care facilities reporting outbreaks as of late Saturday. Maine CDC Director Nirav Shah on Friday identified the virus’ spread through long-term care facilities as an area of concern.

Retirement communities and nursing homes have been especially vulnerable to coronavirus outbreaks, with older people at higher risk for complications from the virus living in close quarters.

On Saturday, the Maine CDC reported that three residents and six staff members at the Maine Veterans’ Homes facility in Scarborough had tested positive for the coronavirus. One person who tested positive has died.

Other long-term care facilities and elder communities that have reported cases include Tall Pines Retirement and Healthcare Community in Belfast, with 19 residents and three staff members who had confirmed cases as of Saturday; OceanView at Falmouth, with 11 cases as of Friday; Augusta Center for Health and Rehabilitation, which had four cases on Friday; and The Cedars in Portland, which reported on Friday that a resident had tested positive.