UK to have track and trace COVID system by June 1

Addressing the opposition leader Keir Starmer, Johnson told parliament that the government would have recruited 25,000 trackers by the start of next month, capable of tracing 10,000 new cases a day, when the overall number of daily tests would have reached 200,000.

He told Starmer that he was confident it would be in place by that date if other conditions were satisfied and it was "entirely provisional."

Johnson has come under fire by opposition parties who say he was slow to introduce testing and provide protective equipment to health workers.

Figures released on Tuesday (May 19) brought the death toll in the UK to at least 42,990, a Reuters tally showed.