President Trump is “doing very well” and has no difficulty breathing, his medical team said Saturday — the morning after he was transferred to Walter Reed National Military Medical Center.

White House physician Dr. Sean Conley and other members of the medical team briefed reporters on Trump’s condition. Conley said they were “extremely happy with the progress” Trump is making.

“This morning, the president is doing very well,” he said.

However, moments after the press conference, a source familiar with the president’s health gave a more cautious diagnosis to the press pool.

“The President’s vitals over last 24 hours were very concerning and the next 48 hours will be critical in terms of his care,” the source said. “We are still not on a clear path to a full recovery.”

Dr. Sean Dooley said that cardiac, kidney and liver functions are all normal, that Trump is not on oxygen and is not having any difficulty breathing or walking.

He noted that he is exceptionally good spirits and said: “I feel like I could walk out of here today.”

The doctors also said Trump had been fever-free for 24 hours, and that symptoms of a nasal cough and fatigue had all “resolved.” However, they did not give a date for when Trump may leave the center.

Trump announced Friday morning that he and first lady Melania Trump had tested positive. A number of White House and campaign officials have also tested positive – including senior White House adviser Hope Hicks and Trump campaign manager Bill Stepien. On Saturday former New Jersey Gov. Chris Christie, who was on Trump’s prep team for Tuesday’s presidential debate, announced that he had tested positive.

Trump was moved to the medical center later Friday in what was described as a precautionary measure after suffering symptoms the White House described as “mild.” Mrs. Trump, meanwhile, was described as “doing great” on Saturday by the medical team.

On Friday afternoon, Conley said Trump had received an antibody cocktail, as well as zinc, Vitamin D, famotidine, melatonin and a daily aspirin. He later said Trump was taking a five day course of Remdesivir.

Trump on Friday night tweeted that his treatment was “going well, I think!”

“Thank you to all. LOVE!!!”