Food Safety Report: Panera Bread, Highland Avenue, Seekonk, MA, USA 2 years ago • details 35 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills, Headache Suspected source: Tuna salad, mayonnaise Onset: Less than 4 hours Duration: Several days Sick: Me