Food Safety Report: Marugame Udon, Kūhiō Avenue, Honolulu, HI, USA 3 years ago • details 105 Comments Comment Suspected food poisoning. Symptoms: Vomiting Suspected source: Udon noodle soup Onset: 20-30 minutes Duration: 5 hours Additional information: Both my kids ate here and they got sick. My wife and I did not eat there and we are not sick