In a video posted on Twitter minutes ago, the prime minister, Boris Johnson, confirmed he had developed mild symptoms – “a temperature and persistent cough” – over the last 24 hours and, on the advice of the chief medical officer, he took a test which returned positive for coronavirus.

Johnson said he is self-isolating and working from home.

He wrote:

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. #StayHomeSaveLives