November 18, 2022 9:05 pm Is It Time to Mask Up Again? NBC Bay Area’s Raj Mathai spoke to UCSF’s Dr. Peter Chin-Hong for some insight on the rise of COVID, the flu and RSV. US & World Videos 2:01 San Francisco welcomes Bay Area's WNBA expansion team: the Golden State Valkyries 2:52 Cinthia's forecast: Cool coast, mild inland 2:31 Santa Clara County proposed budget cuts include 20 detectives from DA's office 2:25 Bay to Breakers returns to San Francisco this Sunday 2:03 Steph Curry buys San Francisco building for $8.5 million