Food Safety Report: Costco Wholesale, Town Center Parkway, Santee, CA, USA 2 years ago • details 31 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: Pre-made, ready to cook meatloaf and mashed potato meal Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people