https://techcrunch.com/2020/05/28/join-us-june-3-for-a-contact-tracing-and-exposure-notification-app-development-and-deployment-forum/

Exposure notification and contact tracing are two related but distinct measures many public health authorities are either considering or already implementing.

Contact tracing is a practice almost as old as epidemiology itself, but today’s technology means the way that we go about tracking the spread of a contagious illness within and between communities is changing very quickly. This presents an opportunity for learning more about the opportunities and challenges presented in extending contact tracing and exposure notification via digital means.