Photo taken in Arlington, Virginia, the United States on Sept. 29, 2020 shows C-SPAN 2 live stream of U.S. President Donald Trump (L) and his Democratic challenger Joe Biden speaking during their first debate in the 2020 presidential race.Photo:Xinhua

2020 Democratic presidential nominee Joe Biden will attend a town hall on Oct. 15, the night scheduled for his second debate with U.S. President Donald Trump, ABC News announced on Thursday.

The primetime event will take place in Philadelphia, Pennsylvania, where the former U.S. vice president will answer questions from voters, and be moderated by anchor George Stephanopoulos, according to the broadcaster.

The announcement came hours after Trump said he won't take part in the second presidential debate following a format change making it virtual to protect the health and safety of those involved during the COVID-19 pandemic, which has sickened the president and a growing number of individuals close to him.

Kate Bedingfield, Biden's deputy campaign manager and communications director, said that the Democrat was prepared to attend the virtual matchup, originally designed to take place in the form of a town hall in Miami, Florida.

"But the President has refused, as Donald Trump clearly does not want to face questions from the voters about his failures on COVID and the economy," Bedingfield said, adding that the campaign hopes that organizers would move the event to later this month.

Bill Stepien, Trump's reelection campaign manager, defended the Republican presidential nominee's remarks, arguing in a statement that "the American people should not be deprived of the chance to see the two candidates for president debate face to face two more times."

Meanwhile, Stepien urged the debate panel to reschedule the second face-off between Trump and Biden for Oct. 22 and the third for Oct. 29, both in-person.

The presidential opponents met for their first debate in the 2020 race in Cleveland, Ohio on Sept. 29, two days before the incumbent tested positive for COVID-19. Biden has undergone multiple tests since Trump's diagnosis, with each one returning negative.

Photo taken in Arlington, Virginia, the United States, on Aug. 27, 2020 shows screens displaying U.S. President Donald Trump delivering his acceptance speech during the 2020 Republican National Convention.Photo:Xinhua

Trump returned to the White House on Monday, where he continues to receive treatment, after a three-day hospitalization due to the coronavirus infection.

Speaking to Fox Business Thursday morning, the president said he is feeling "perfect," while appearing eager to hit the campaign trail as Biden's lead over him in national polls is widening.

"I think I'm better ... to a point where I'd love to do a rally tonight. I wanted to do one last night," Trump said. "I feel perfect. There's nothing wrong."

The Centers for Disease Control and Prevention recommends that individuals self-isolate for at least 10 days after the onset of symptoms from COVID-19, which has infected nearly 7.6 million people and killed more than 212,000 in the United States.