Food Safety Report: KFC, Third Avenue, Chula Vista, California, USA UU. 1 year ago • details 68 Comments Comment Presumed food poisoning. Symptoms: Diarrhoea, Nausea, Vomiting, Stomach Pain, Chills, Headache Alleged source: KFC chicken Start: Less than 4 hours Duration: 12 to 24 hours Sick people: 2 people Additional Information: No