Sonoma County health officials late Monday night reported three more virus-related fatalities, to bring the area COVID-19 death toll during the pandemic that began in March to 50 victims.

Cloverdale Healthcare Center, a skilled nursing and rehabilitation facility, also reported on Saturday to state public health officials that at least one resident and one staff member tested positive for the highly contagious virus.

It was unclear Monday if the resident of the Cloverdale center was among the three coronavirus deaths county health officials reported Friday.

Sundari Mase, the county’s health officer, earlier Monday called the additional deaths reported Friday “devastating for the community” and reaffirmed how deadly the virus can be for the county’s most vulnerable residents, particularly nursing home residents.

Senior care homes are required to report deaths and new infections to the California Department of Public Health, but exact numbers of deaths and fresh cases at each nursing home are shielded by the state for patient privacy until the tallies of deaths or infections reach 11 or more.

Meanwhile, county health officials reported 125 new virus infections Saturday — the largest single day of cases reported during the pandemic — and 114 more cases on Sunday — the third-highest daily tally — plus 83 more cases Monday to push the overall infection total to 3,753 countywide.

State public health officials Monday said they have finished working through the backlog of test results and have sent that data to county public health departments statewide for review.