Food Safety Report: Dunkin Donuts, Mangwol-dong, Hanam-si, Gyeonggi-do, South Korea 2 years ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Headache Suspected source: Donuts Onset: 4 to 12 hours Duration: Several days Sick: A loved one