Experts Say Efficacy of Smartphone COVID-19 Tracing App Will Depend on Participation
While the vaccine may be months away for many in the country, there’s another tool on its way that can go in the hands of everyone in Wisconsin as soon as next week. The State announced the WI Exposure Notification, a voluntary and free smartphone app that uses Bluetooth to alert users if they’ve been in close contact with another user who has tested positive for COVID-19. Whenever someone tests positive for COVID-19, they’ll be sent a code that can be entered into the app, which is used to anonymously send an alert to users with whom they’ve shared a Bluetooth signal.