Food Safety Report: Marugame Udon, Diliman, Quezon City, Metro Manila, Philippines 1 year ago • details 6 Suspected food poisoning. Symptoms: Nausea, Vomiting, Chills, Headache Suspected source: Ate rice or egg could have been undercooked Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people