Apple and Google are building coronavirus tracking into iOS and Android

Apple and Google are jointly building software into iPhone and Android devices to help track the spread of coronavirus by telling users if they contacted an infected person and are potentially sick themselves. The new project is slated for release in May.

Medical experts know that contact tracing is vital to public health during disease outbreaks. The technique has been one key to the success of countries like South Korea in turning back the tide of the pandemic inside their own borders. This Silicon Valley effort will be one of the biggest American attempts to closely track the spread of coronavirus. Crucially, it is not the national coronavirus surveillance system that the White House was reportedly...