Democratic 2020 U.S. presidential candidate and U.S. Senator Bernie Sanders (I-VT) speaks at a campaign stop in Hooksett, New Hampshire, September 30, 2019.

Bernie Sanders will be participating in the next Democratic presidential debate on Oct. 15 in Ohio, the senator's campaign told CNBC on Thursday, one day after a health scare.

"[Campaign] operations are continuing as usual and he will be at the debate," Sanders' spokeswoman, Sarah Ford, wrote in an email to CNBC. She declined to comment further.

The news comes after the Sanders campaign said Wednesday that the Vermont senator was putting his campaign on hold as he recovers from a procedure for an artery blockage, in which he had two stents inserted. The campaign told NBC News that Sanders is still being treated in a Las Vegas hospital as of Thursday. It did not give any timing on when he is expected to be released.

In a statement Thursday released by the Sanders campaign, the senator's wife, Jane, said, "Bernie is up and about." She added that "his doctors are pleased with his progress, and there has been no need for additional procedures."

"We expect Bernie will be discharged and on a plane back to Burlington before the end of the weekend," she said. "He'll take a few days to rest, but he's ready to get back out there and is looking forward to the October debate."

The 78-year-old senator is the oldest presidential candidate seeking to challenge President Donald Trump, 73, in the 2020 general election.

During his 2016 campaign against Hillary Clinton for the Democratic nomination, Sanders released a doctor's note stating the senator was in good health and did not have a history of heart disease.

Sanders has committed to release his medical records before next year's primaries and caucuses begin.

As of Monday, Sanders was third among Democratic candidates, with 16.8% support, according to the Real Clear Politics polling average. Joe Biden was in first with 26.2% support. Sen. Elizabeth Warren was in second with 24% support.

In recent weeks, Warren has been eating into Biden's front-runner status, which had seen the former vice president poll over 40% back in May.