A team of 25,000 contact tracers are making their first phone calls to track down people who will be told to self-isolate under a new scheme in England.
Tracers will text, email or call people who test positive with coronavirus and ask who they have had contact with. Any of those contacts deemed at risk of infection will be told to isolate for 14 days, even if they are not sick.
A test and trace system is also launching in Scotland, where an easing of the lockdown is expected later.
The aim of England's NHS Test and Trace system is to lift national lockdown restrictions and move towards more localised, targeted measures.
The team will start by contacting the 2,013 people who tested positive for the virus on Wednesday.
Source: BBC News, 28 May 2020