Food Safety Report: Chick-fil-A, Las Vegas Boulevard South, Las Vegas, NV, USA 1 year ago • details 256 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Chills, Headache Suspected source: Salad Onset: 12 to 24 hours Duration: 4 to 12 hours Sick: Me