Food Safety Report: McDonald's Pärnu, Tallinna maantee, Pärnu, Pärnu County, Estonia 2 years ago • details 1 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain Suspected source: McDonald's or it might be a virus. Onset: 12 to 24 hours Duration: 4 to 12 hours Sick: A loved one