Contaminated water, shellfish, turtles, fish Gastroenteritis, fever and rapid blood-poisoning. Sludge, untreated wastewater, groundwater contamination, poorly disinfected drinking water. Cooling towers, showers through inhalation of vapors, raw sewage, stagnant clean drinking water in water tanks or towers, construction sites near rivers, lakes. Milder form of Legionnaire's disease. Pneumonia-like symptoms, but without fever.
Illness is shorter in length.
Repeated vomiting and diarrhea over 24-hour period, gastrointestinal discomfort, headache, fever. Physicians must report these illnesses to the Illinois Department of Public Health.