Food Safety Report: Tim Hortons, Boulevard des Laurentides, Laval, QC, Canada 1 year ago • details 3 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps, Chills Suspected source: Tim Hortons blueberry muffin Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people Additional Information:… See more