More counties in California announced new COVID-19 restrictions on Saturday to prevent rising caseloads from spiraling into a hospital crisis. Starting today, San Francisco and San Mateo counties will join a statewide curfew and Silicon Valley will ban all high school, collegiate and professional sports and impose a quarantine for those traveling into the region from more than 150 miles away. The new restrictions come a day after Los Angeles County imposed a lockdown calling for 10 million residents to stay home a as much as possible.a They will be prohibited from gathering with people outside of their household for public or private occasions, except church services and protests.