British Prime Minister Boris Johnson has thanked staff at St Thomas Hospital for taking care of him while he recovers from COVID-19.

“I can’t thank them enough. I owe them my life,” Johnson said in a brief statement issued late on Saturday.

The 55-year-old conservative politician was hospitalised last Sunday running a high fever.

He spent three days in the intensive care unit after his health deteriorated.

He was moved back to a normal ward on Thursday.

When the prime minister will be able to return to work remains unclear.

According to Britain’s Press Association, Johnson has a tablet computer to watch films such as “Lord of the Rings” .

He also likes to play sudoku while recovering from Covid-19.

He has received thousands of get-well cards from well-wishers and daily letters from his fiance Carrie Symonds.