Downing Street confirmed the prime minister was undergoing tests ‘as a precautionary step’ on the advice of his doctor.
The announcement was made after Elizabeth II urged Britons to show their traditional “quiet, good-humoured resolve” and thanked NHS staff for their work.
Meanwhile health secretary Matt Hancock criticised members of the public for flocking to parks to sunbathe during the lockdown, though he said changes to exercise rules were not “imminent”.
The worldwide number of Covid-19 cases passed 1.25 million, with more than 68,000 dying with the disease, according to the Johns Hopkins University. In the UK the death toll rose by over 600 in a day to nearly 5,000.
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