LONDON, ENGLAND – MAY 01: Health Secretary Matt Hancock leaves 10 Downing Street with aide Gina Coladangelo after the daily press briefing on May 01, 2020 in London, England. Mr Hancock announced that the government’s pledge to conduct 100,000 Covid-19 tests per day had been successful. British Prime Minister Boris Johnson, who returned to Downing Street this week after recovering from Covid-19, said the country needed to continue its lockdown measures to avoid a second spike in infections. (Photo by Dan Kitwood/Getty Images)