President Trump announced his plans on Tuesday to go on with the next presidential debate in Miami, against former Vice President Joseph R. Biden Jr. The debate, set for Oct. 15 in Miami, would be two weeks after Mr. Trump tested positive for the notoriously unpredictable coronavirus.
According to guidelines from the Centers for Disease Control and Prevention, Mr. Trump could still be contagious on Oct. 15, depending on how severe his case has been and exactly when his symptoms began.
People with mild to moderate cases, the agency says, probably are not infectious once 10 days have elapsed since symptom onset. But the timeline expands to about 20 days in more severe cases — and Mr. Trump might meet the criteria for being classified as a severe case, based on the treatments he received at Walter Reed National Military Medical Center.
Eager to get back on the campaign trail, Mr. Trump wrote on Twitter that he was “FEELING GREAT!” on Tuesday, and the doctor overseeing his care, Sean P. Conley, said in a written update made public by the White House that the president “continues to do extremely well,” adding, “Today he reports no symptoms.”
Dr. Conley said the president’s oxygen saturation level was normal on Tuesday, in the 95 to 97 percent range. At one point earlier in his illness, however, it fell to 93 percent. Many medical experts consider Covid-19 patients to have severe cases if their oxygen levels drop below 94 percent.
Before Mr. Trump left the hospital on Monday evening, he issued a message telling people not to be afraid of Covid-19 and saying, “Don’t let it dominate your life.” His comments drew outrage from scientists, ethicists, doctors and friends and relatives of the deceased, who had hoped the president’s own experience with the disease would lead him to take it more seriously.
On Tuesday, Mr. Trump again compared Covid-19 to the flu on social media, a reprise of earlier false claims that the illnesses were comparable in lethality; experts say seasonal influenza is much less deadly than coronavirus.
“We are learning to live with Covid, in most populations far less lethal!!!” he tweeted.
Facebook later took down Mr. Trump’s post about the flu, saying in a statement that “we remove incorrect information about the severity of Covid-19, and have now removed this post.”
The post received nearly 570,000 likes and comments and was shared nearly 50,000 times before it was taken down.
Mr. Trump posted the same false claim that the flu was responsible for more deaths than the coronavirus on Twitter. On Tuesday morning Twitter added a label to the tweet that hides the message, saying that the tweet violated its policies by spreading misleading information about Covid-19.
Twitter did not immediately respond to a request for comment.