coronavirus October 19, 2021 7:47 am FDA to Allow People to Mix and Match COVID-19 Booster Shots The FDA might allow people to mix and match COVID-19 booster shots as early as Wednesday. Bob Redell reports. US & World Videos 2:19 San Francisco barbershop struggles to stay open after pandemic 0:51 Alameda County using dogs to detect COVID 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:27 Marking 4 years since COVID-19 shut down the Bay Area 2:09 CDC updates COVID isolation guidelines