The U.S. president is undergoing treatment at the Walter Reed Medical Center.
U.S. President Donald Trump is being treated with the steroid dexamethasone after oxygen level drops on Friday and Saturday, his doctor says.
But he is said to be doing well and could be discharged back to the White House on Monday, the BBC reported.
Read alsoZelensky wishes Trump, First Lady "fast and full recovery" from COVID-19
Dr Sean Conley admits Trump was treated with supplementary oxygen, after refusing to confirm a day earlier.
U.S. First Lady Melania Trump is among a growing group of people around Trump who also have the virus – she is recuperating at the White House.
At least seven people who attended a White House event last week, including the Trumps, have now tested positive.