UPDATE: Turns out there wasn't Salmonella in the chili after all.
Health department officials have been testing leftover chili and people, and were unable to find any Salmonella bacteria.
Still no word on what may have caused people to fall sick.
For more information, or to report a possible case of Salmonella, contact the St. Clair County Health Department at (618) 233-6175 ext. 4434, Monday through Friday from 8:00 a.m. until 4:00 p.m.
PREVIOUS STORY: Officials are investigating after an outbreak of salmonella stemming from the Belleville Chili-Cook-Off held on Oct. 8.
A press release from the St. Clair County Health Department and the Illinois Department of Public Health, people who attended the event and are or were ill with diarrhea should call their primary care doctor for medical advice, and are asked to call the St. Clair County Health Department at (618) 233-6175 extension 4434.
The release said people who work where they provide direct care to children, elderly and people with compromised immune systems should be tested for infection if possible before returning to work.
Symptoms may include headache, muscle aches, diarrhea, vomiting, abdominal cramping, chills, fever, nausea and dehydration and usually appear 6 to 72 hours after ingestion, although longer periods have been reported in this outbreak.
For more information about salmonella, click here.