Food Safety Report: KFC, Z.A. Entre deux Fossaux, Collombey-Muraz, Monthey, Switzerland 1 year ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Stomach Pain, Cramps, Chills, Headaches Suspected source: Kfc Onset: 1 to 2 days Duration: 4 to 12 hours