coronavirus July 16, 2020 11:51 pm Labs Race to Find More Efficient COVID-19 Tests As COVID-19 cases climb around the country, there is a race – not only for more tests, but for ones that are more comfortable. Ian Cull 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