The largest active outbreak is at the Snake River Correctional Institution in Ontario.
In addition to the Snake River Correctional Institution outbreak, 296 COVID-19 cases are connected to the Eastern Oregon Correctional Institution in Umatilla County.
RELATED: Active workplace outbreaks with five or more confirmed COVID-19 cases.
Seven of the 10 largest active COVID-19 workplace outbreaks are associated with businesses in Eastern Oregon's Umatilla County, which is home to a population of just over 78,000.