Food Safety Report: Subway, Short Street, Decorah, IA, USA 2 years ago • details 6 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Headache Suspected source: Subway sandwich Onset: 1 to 2 days Duration: Several days Sick: More than 6 Additional information: We held… See more