coronavirus April 13, 2020 6:02 pm Bay Area Labs Offer COVID-19 Immunity Tests The tests are not cheap and are not 100% accurate, but plenty of people are signing up for it. Jodi Hernandez 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