Smartphone App Warns If You've Been Exposed to COVID-19

April 28, 2020 06:59 AM
This program will begin at
This program has ended and is being processed for playback.

Communities in the United States and around the world are talking about when and how to ease lockdown measures as they grapple with the COVID-19 pandemic. This disease and how it spreads presents some unique challenges. People without symptoms can infect others, and for some, it can be deadly. What if a smartphone app could let you know if you have been exposed? Michelle Quinn reports.