Food Safety Report: Credit Union 1 Amphitheatre, Ridgeland Avenue, Tinley Park, IL, USA 3 months ago • details 4 Suspected food poisoning. Symptoms: Vomiting, Stomach Pain Suspected source: Fries Onset: Less than 4 hours Duration: 4 to 12 hours Sick: 2 people Additional information: Two people who ate fries vomited and one person who didn’t eat was fine.