Johnson, 55, said that his symptoms are mild. He mentioned that he had a high temperature and cough.
He is now self-isolated in his apartment, but he said that he is willing to continue leading the British government.
The British authorities have already designated Dominic Raab as Johnson’s successor in case the Premier falls gravely ill.
Raab is currently the First Secretary of State and Secretary of State for Foreign and Commonwealth Affairs.
Additionally, Matt Hanψock, the Health Secretary of the United Kingdom, also tested positive for the coronavirus 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.
— Boris Johnson #StayHomeSaveLives (@BorisJohnson) March 27, 2020