Food Safety Report: Panera Bread, Ash Brook Road, Keene, NH, USA 2 years ago • details 5 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills Suspected source: Arugula, Tuna, Tomato Soup, Cucumber Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: Have very bad chills