Food Safety Report: McDonald's, Montée Masson, Mascouche, QC, Canada 1 year ago • details 9 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain Suspected source: Mcdonalds Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people Additional information: I ate McDonald yesterday… See more