Sen. Hillary Rodham Clinton (search) told reporters Tuesday she was feeling better after collapsing a day earlier while delivering a speech to constituents in New York.

Walking into the weekly Democratic policy luncheon on Capitol Hill, Clinton described the fainting spell in Buffalo, N.Y., as a symptom of a "24-hour virus that swept through our staff ... I don't know what it was, just one of these 24-hour 'bang' events."

Clinton, D-N.Y., declined hospital treatment Monday after getting on-scene care from an emergency crew who arrived at the Saturn Club, where Clinton was speaking to the Amherst Chamber of Commerce. She told the 150-person audience that she was feeling weak from a stomach ailment before dropping to the ground and briefly passing out in front of the crowd, Colleen DiPirro, president of the chamber, told WBEN radio.

After Clinton, 57, recovered, she ate crackers and drank water and Gatorade before walking out of the building under her own power and smiling. She then continued with her schedule Monday, arriving at Canisius College (search), where she joked with the crowd about her episode.

"It wasn't as dramatic as it sounds," she said.

Clinton said Tuesday that 32 people in her office got sick over the weekend and while it could have been food poisoning, she believes it was a virus.

Clinton followed her regular schedule Tuesday with the exception of an early morning appearance at the annual meeting of the National Association of Independent Colleges and Universities (search). Clinton accepted an offer from the association to schedule a rain date to address the group.

Clinton, the first sitting first lady elected to public office, won her seat in 2000. She replaced Democrat Daniel Patrick Moynihan (search). She has said she plans to run for re-election in 2006 and many political pundits are betting that she will run for the 2008 Democratic presidential nomination and could easily win it.

FOX News' Julie Asher and The Associated Press contributed to this report.