Wearing a black mask and surrounded by Secret Service operatives, Trump walked out of the Walter Reed Military Medical Centre in Bethesda, Maryland, at 6:38 p.m. (11:38 p.m. Nigerian time).

Against expectations, the president did not answer questions from newsmen, who could be heard shouting questions at him.

He was driven in a motorcade to a helipad nearby from where the presidential helicopter, Marine One, flew him on a short trip back to the White House.

On arrival at the White House, he removed his mask, paused for a brief photo op during which he waved to the cameras before entering his official residence.

Shortly before leaving hospital, Trump tweeted that he was feeling much better and would be back on the campaign trail soon.

Four hours earlier, Trump had made a Twitter post in which he, again, downplayed the impact of the virus, and said he was feeling better than he did 20 years ago.

“I will be leaving the great Walter Reed Medical Center today at 6:30 P.M. Feeling really good!

“Don’t be afraid of COVID. Don’t let it dominate your life. We have developed, under the Trump Administration, some really great drugs and knowledge”.

“I feel better than I did 20 years ago!,” he said.