The Times is tracking the COVID-19 outbreak among state prison inmates and staff across the California Department of Corrections and Rehabilitation system. The state releases new inmate figures daily and staff data weekly.
The data do not include federal prisons, immigration detention facilities or local jails.
The statewide trend
The virus thrives in crowded settings such as prisons. Cases began to surge in May 2020 and peaked in December.
Over the past week, the state prisons have averaged 15 new cases and 0 new deaths per day.
Outbreaks among inmates
Cases have been confirmed at all 35 adult institutions in the state prison system.
Learn more about those we've lost by reading Times obituaries of Californians who have died from COVID-19.
Outbreaks among workers
There have been 20,057 cases and 33 deaths linked to employees across the state. This includes staff for adult and youth facilities, training centers and California Correctional Health Care Services, which provides healthcare services to the state’s prison inmate population.