Coronavirus contact tracing apps are coming to your phone. Here's how they work.
Apple and Google have launched a contact tracing system called Exposure Notification, which could allow their smartphone users and overwhelmed health officials to detect when a person has been exposed to the coronavirus. Read more: https://wapo.st/2AnKCcC. SPECIAL OFFER: To thank you for your support, here’s a deal on a Washington Post digital subscription: $29 for one year http://washingtonpost.com/youtubeoffer.
Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK