Food Safety Report: McDonald's, London Road, Headington, Oxford, UK 1 year ago • details 58 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain Suspected source: McChicken Sandwich Onset: Less than 4 hours Duration: 12 to 24 hours Additional information: Had a mcchicken sandwich meal.… See more