Countries around the world are rushing to launch contact tracing apps to identify who an infected person has had contact with, as part of efforts to slow the spread of the coronavirus. 

The Government confirmed on Sunday, that an NHS version will be trialled in the Isle of Wight this week and is expected to be rolled out across the UK later this month. 

The test, track and trace app works by using Bluetooth signals to detect when two phones come close to each other, and anyone who becomes unwell with coronavirus symptoms can notify the app, which would then inform other users with whom they had significant contact.