Food Safety Report: Asda St Austell Superstore, Cromwell Road, Saint Austell, UK 8 months ago • details 6 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Chills Suspected source: Quorn Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: 2 people