As we've been reporting, Governor Gavin Newsom announced that all state employees and all health care workers in California's public and private must submit proof of vaccination against COVID-19. Those who don't will have to wear masks indoors and get tested weekly to curb the spread of the Delta variant.

For more, KCBS Radio Political Reporter Doug Sovern spoke with Dr. Bob Wachter, professor and share of the department of medicine at UCSF.