"I'll walk in there, I'll kiss everyone in that audience", Trump said on stage in Sanford, Fla., during his first campaign rally since being diagnosed with the virus on October 1.
He spent three nights in hospital and underwent treatment for the virus but his doctors have now said he is not contagious.
Critics have faulted Mr Trump for failing to encourage supporters at campaign events, and even White House staff, to wear protective masks and abide by social-distancing guidelines.
Anthony Fauci (L), director of the National Institute of Allergy and Infectious Diseases, speaks as U.S. President Donald Trump looks on during a briefing on the coronavirus pandemic, in the press briefing room of the White House on March 24, 2020 in Washington, DC.
"I feel so powerful", said Trump, displaying no obvious signs of lingering infection.
"I have such respect for the people of this country the way they've handled it", he said.
Conley said the negative tests and other clinical and laboratory data "indicate a lack of detectable viral replication".
In contrast, Democrat candidate and former vice president Joe Biden came up with a mere 18.8%. "Trump knew how unsafe the disease was but did nothing", Biden said ahead of the rally.
Joe Biden campaigned Monday in OH, attempting to expand the battleground map in a state thought to be out of reach for Democrats after President Donald Trump's victory there four years ago.
His plan to follow Trump into Florida on Tuesday is a bit of muscle-flexing in battleground states by a well-funded campaign that is ahead in most polls - including by narrow margins in OH and Florida.
The polls, conducted Tuesday through Sunday, showed Mr Biden now leading Mr Trump by seven percentage points in both states.
Democratic presidential candidate Biden also visited OH on Monday. One man shouted questions to the vice president, including "How do you call yourself a Christian?" before being rebuked loudly by the crowd and escorted out.
The trip marks Biden's third visit to Florida during this campaign cycle.
Republican ad maker Nicholas Everhart told BuzzFeed 'there's no reason why [Trump] would not be wanting to be on the air in those states, particularly OH'.
As he pushed for the opening of the economy, he claimed that Democratic nominee Joe Biden would seek a "draconian unscientific lockdown" that would delay recovery for the state.
Mr Biden pulled further ahead in Wisconsin and Pennsylvania, building momentum in two states that Mr Trump carried in the 2016 presidential election, Reuters/Ipsos opinion polls showed on Monday.
Biden also will attend a get-out-the-vote event in Cincinnati, his campaign said.