Food Safety Report: Niku Ou Japanese Charcoal Grill, Bourke Street, Melbourne VIC, Australia 1 week ago • details Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Sushi Onset: 12 to 24 hours Duration: Several days Sick: 5 people Sick: 4 people