https://techcrunch.com/2020/03/16/bay-area-counties-announce-lockdown-through-april-7/

Six Bay Area counties — San Francisco, Santa Clara, San Mateo, Marin, Contra Costa and Alameda — announced a “shelter in place” order. The lockdown, unveiled at a press conference earlier, starts at 12:01 AM Tuesday. It’s not a full lockdown, but it’s quite sweeping and strict nonetheless, as Northern California attempts to curb the exponential spread of COVID-19.

“There is no need to panic,” San Francisco Mayor London Breed said in a press conference today, continuing a plea for cooler heads amid the pandemic.