Food Safety Report: KFC Valenciennes Petite-Forêt, Avenue François Mitterrand, Petite-Forêt, France 2 years ago • details 3 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: Chicken Onset: 12 to 24 hours Duration: Several days Sick: 2 people