The Bluetooth-based design would depend not only on voluntary download of the apps by users around the world but also require express consent from users to report a positive diagnosis for COVID-19 ...

To safely reopen without risking new COVID-19 outbreaks, states need staff to do the crucial work of contact tracing. Public health agencies report they have aggressive plans to grow their workforce.

Apple and Google on Wednesday released the first phase of a template that would allow software developers to build apps to assist public health authorities in tracking the spread of COVID-19.