coronavirus March 16, 2020 2:25 pm Dr. Birx: ‘Millennials Are the Key' to Stopping Coronavirus State Department health official Dr. Deborah L. Birx explains why millennials may be the key to stopping the spread of coronavirus. 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