Boris Johnson has been discharged from hospital and will continue his recovery at Chequers, Downing Street has said.
Number 10 said the Prime Minister would have a break from work while he recovers following the decision to discharge him from St Thomas' Hospital in central London.
He had been admitted to St Thomas' Hospital on Sunday 10 days after testing positive for Covid-19 and spent three nights in intensive care during that time.
Mr Johnson has said it "could have gone either way" as he thanked healthcare workers for saving his life.
He said in a video on Twitter that he had witnessed the "personal courage" of hospital staff on the front line.
The prime minister thanked all the staff including two nurses - Jenny from New Zealand and Luis from Portugal - who he said stood by his bedside for 48 hours at the most critical time. He named several other hospital workers who cared for him this past week and thanked them.
He said NHS workers "kept putting themselves in harm's way, kept risking this deadly virus."
"It is thanks to that courage, that devotion, that duty and that love that our NHS has been unbeatable," he said.
After he was discharged, Mr Johnson’s fiancee Carrie Symonds, 32, said she “cannot thank the magnificent NHS enough.
In an emotional tweet, she wrote: “The staff at St Thomas’ Hospital have been incredible. I will never, ever be able to repay you and I will never stop thanking you.
"There were times last week that were very dark indeed. My heart goes out to all those in similar situations, worried sick about their loved ones.Today I'm feeling incredibly lucky."
Ms Symonds has been self-isolating with coronavirus-like symptoms but has not been tested.
Mr Johnson could be out of action for as long as a month and will recuperate at Chequers, which has been the official country residence of serving UK prime ministers since 1921.
The Grade 1 listed mansion, set in 1,000 acres of Buckinghamshire countryside, is about 40 miles north-west of London.
Foreign Secretary Dominic Raab is currently in charge of running the government and will continue to deputise where required.
Meanwhile, the UK death toll has passed 10,000, up from 9,875 the previous day.