Illinois Sees Sharp Rise in Cyclosporiasis Cases
Illinois has confirmed 995 cases of the diarrhea-causing illness cyclosporiasis, a number significantly higher than typical for this time of year. While generally not deadly, 58 individuals have been hospitalized. The source is under investigation, with potential links to iceberg…

Chicago, IL, August 5, 2026 —
Illinois has reported a substantial increase in cyclosporiasis cases, with 995 confirmed instances of the foodborne illness. This figure is notably higher than what is typically observed for this period.
While cyclosporiasis is generally not fatal, the outbreak has led to 58 hospitalizations across the state. Public health officials are actively investigating the source of the contamination.
Early investigations have suggested potential links to iceberg lettuce supplied by Taylor Fresh Foods. Additionally, previous outbreaks have been associated with shredded lettuce served at Taco Bell locations.
The rise in cyclosporiasis cases in Illinois is occurring within a broader national context. Neighboring Michigan has reported a significantly higher number of cases, indicating a widespread issue potentially affecting multiple regions.
The Illinois Department of Public Health has not provided further details regarding the ongoing investigation into the specific source and distribution of the contaminated product. The contractor’s name for any implicated products was not provided.
Cyclosporiasis is an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis. People typically become infected after consuming food or water contaminated with the parasite. Symptoms often include watery diarrhea, loss of appetite, nausea, fatigue, and cramping, usually appearing about a week after ingestion.
Story summarized from the original created by Elvia Malagón,Mary Norkol,Elijah James,Somer Van Benton on chicago.suntimes.com, see more information here.
