coronavirus January 24, 2022 5:41 pm UCSF Expert Discusses New Omicron Subvariant Discovered UCSF infectious disease expert Dr. Peter Chin-Hong discusses the new omicron subvariant that has been discovered in the U.K. 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
