Food Safety Report: Panera Bread, 24910 William P Rosso Hwy, Clinton Twp, MI 48036, USA 1 year ago • details 10 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: Panera bread salad and sandwhich Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me