Food Safety Report: Avellaneda Avenue 1666, Buenos Aires, Argentina 9 months ago • details 15 Presumed food poisoning. Symptoms: Stomach Pain, Headache Presumed source: Bad blue cheese, tomato in the fridge cut in half for 3 days, lactose-free cheese opened more than 7 days ago Start: 4 to 12 hours Duration: 4 to 12 hours Sick people: Me