From the Background: "COVID-19 [coronavirus disease 2019] is a respiratory illness caused by a novel virus that has been spreading worldwide. Community-acquired cases have now been confirmed in California. We are gaining more understanding of COVID-19's epidemiology, clinical course, immunogenicity, and other factors as time progresses, and the situation is changing daily. CDPH is in the process of monitoring COVID-19, conducting testing with local and federal partners, and providing guidance and resources to prevent, detect and respond to the occurrence of COVID-19 cases in California. At this time, community transmission of COVID-19 has occurred in California. Educational institutions should prepare for possible impacts of COVID-19 and take precautions to prevent the spread of COVID-19, as well as other infectious diseases, including influenza and gastroenteritis."
California Department of Public Health
California Department of Public Health: https://www.cdph.ca.gov/