Did Pa s exposure notification apps help curb the spread of COVID-19? wesa.fm - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wesa.fm Daily Mail and Mail on Sunday newspapers.
The COVID-19 exposure alerts system, which notified you when you had been in contact with someone that tested positive, has now been shut down in the majority of U.S. states.