A key to staying safe from COVID-19 is contact tracing — breaking the chain of transmission from person to person.
Kelly Driscoll, head of the Community Tracing Collaborative in Massachusetts, explains how contact tracing works and what it can do to block the spread of the virus. See omnystudio.com/listener for privacy information.
Science Rules! with Bill Nye
Bill Nye is on a mission to change the world — one voicemail at a time.