Food Safety Report: Costco Wholesale, North 79th Avenue, Glendale, AZ, USA 1 year ago • details 67 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: Pork soup buns Onset: 4 to 12 hours Duration: Less than 4 hours Sick: Me