Updated at 6:15 p.m.: Revised to include additional details.

Eight residents of a long-term care facility in McKinney have died after testing positive for COVID-19.

The eight, who lived in memory care at The Oxford Grand, had underlying health conditions, according to a spokeswoman. They were among 13 residents who have tested positive for the virus.

No COVID-19 cases have been reported among assisted-living residents, who are separated from memory care residents.

The facility has been battling the coronavirus since late March, said Coryanne Graham, the vice president of marketing and brand for Oxford Senior Living. She said the eight residents died between April 5 and Tuesday night.

Five employees have tested positive for the virus.

Graham said in a written statement that The Oxford Grand was screening employees for symptoms of the virus when they arrive at the building, and residents are screened three times a day. Staff members are wearing protective equipment and are frequently sanitizing surfaces at the facility, among other precautions.

No visitors have been allowed at the facility since mid-March, though the staff has set up a protocol for relatives to visit in end-of-life situations.

“Families have been extremely supportive of the precautions we are taking and the staff who are caring for their loved ones each day,” Graham said in an email.

In Collin County, health officials had reported 14 deaths related to COVID-19 as of Wednesday.

It’s unclear whether the eight deaths at Oxford are included in that total. Of the 14 deaths in Collin County, seven are reported in the same ZIP code as the McKinney facility, 75072, according to data posted on Collin County Judge Chris Hill’s website.

A total of 584 coronavirus cases have been reported in the county.

A Collin County spokesman said Wednesday afternoon that he didn’t have information about how many and which long-term care facilities in Collin County had reported coronavirus cases or deaths.

Clusters of coronavirus cases have been reported across the state in long-term care facilities, where residents can be especially vulnerable.

The number of COVID-19 deaths statewide in long-term care facilities surpassed 200 on Wednesday and jumped to 38% of the total known COVID-19 known deaths statewide.

Staff writer Lauren McGaughy contributed to this report.