Boris Johnson, Prime Minister of UK, Tests Positive for Coronavirus. The 55-year-old leader of Britain made the announcement via Twitter on Friday. Over the last 24 hours I have developed mild symptoms and tested positive for coronavirus. I am now self-isolating, but I will continue to lead the government’s response via video-conference as we fight this virus. Together we will beat this, Boris Johnson, Twitter. He is the first Western leader to confirm that he has contracted the virus. In a video message, Johnson reiterated that he will not turn his duties over to someone else. Be in no doubt that I can continue, thanks to the wizardry of modern technology, to communicate with all my top team to lead the national fightback against coronavirus, Boris Johnson, Twitter. After pushing back against dramatic measures to curb the spread of virus in the U.K., Johnson imposed a lockdown for the nation earlier this week. Heir to the British throne, Prince Charles, also revealed this week that he has contracted the coronavirus. Queen Elizabeth II, 93, is said to be in good health