A health worker holds a testing tube after conducing at a drive-through COVID-19 test at KPJ Damansara Specialist Hospital, in Petaling Jaya, Malaysia, Monday, March 30, 2020. Credit: Vincent Thian | AP

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A resident at a Portland assisted living facility has tested positive for the coronavirus, making it the fifth long term care facility in Maine to have at least one resident test positive.

The Cedars, a Portland-based retirement community, announced Friday that a resident of its assisted living facility, the Osher Inn, tested positive for the virus, according to its website. Dozens of other cases have been confirmed at similar facilities in Falmouth, Belfast and Augusta.

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

Across the state, 616 cases of the virus have been confirmed and 19 people have died.

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

This week, the Maine Center for Disease Control announced that there was a particularly concerning outbreak at Tall Pines Retirement and Healthcare Community in Belfast. As of Friday, 19 residents and three employees have tested positive for COVID-19. Two residents have died.

Tall Pines’ Director Matthew Griswold said Saturday that there had not been an increase in the number of confirmed cases at the facility since Friday.

In total, Waldo County currently has 27 confirmed cases of COVID-19.

The number of cases continues to grow at OceanView, the Falmouth retirement community where some of Maine’s earliest coronavirus cases were confirmed. As of Friday, 11 residents have tested positive for the virus.

A spokesperson for OceanView said no update would be released Saturday.

There have also been four cases of the virus detected among residents at the Augusta Center for Health and Rehabilitation, Maine CDC Director Dr. Nirav Shah said. The Augusta facility offers both short-term rehabilitative care and long-term nursing care, according to its website.

Three residents and six staff members at the Maine Veterans’ Home in Scarborough have tested positive for the virus. One person who tested positive has died.

The Maine CDC has sent shipments of personal protective equipment to Tall Pines and the Augusta Center for Health and Rehabilitation.

On Saturday, Maine CDC spokesman Robert Long said he did not have any information on new cases at any of the long-term care facilities.