U.S. President Donald Trump is no longer at risk of transmitting the novel coronavirus, the president's physician said late Saturday.

Nine days after testing positive for COVID-19, Trump on Saturday appeared in public for the first time and cheered supporters from a White House balcony.

"Right now I'm medication-free, I'm not taking any medications as of, you know, probably eight hours ago," he told Fox News on Friday night, the first on-camera interview since his diagnosis and three-night hospitalization.

The Commission on Presidential Debates (CPD) announced that the second debate between Trump and Joe Biden was officially canceled after Trump declined to do a virtual debate, despite concerns over his COVID-19 diagnosis. 

On October 2, Trump revealed that he and his wife Melania had tested positive for COVID-19 after a close aide contracted the coronavirus. He was admitted to the Walter Reed National Military Medical Center and subsequently returned to the White House on October 5, spending three nights at the hospital.