Apple and Google reveal Covid-19 contact tracing notification system built into phones

Once set up, handset holders can opt in, meaning they'll get an alert if someone they have been near has tested positive for coronavirus.

Two tech giants will continue to support coronavirus apps built by health authorities if they choose not to adopt new system (Philip Toscano/PA)

Apple and Google have announced a new coronavirus contact tracing system to help public health authorities inform potentially infected people without having to build their own app.

Countries across the world have turned to technology to support contact tracing efforts, using bluetooth to keep an anonymous log of those in close proximity.