台北某中学有学生3126名,校内设有餐厅供应住校生日常3餐,学校除厨房用自来水外,其余都使用地下水。2008年3月16日晚8时起,陆续有学生因腹痛、呕吐及腹泻等送附近医院就诊,至17日晨2时约有146名学生发病。3月17日至21日共采集发病学生肛拭检体18件、粪便2件,9位厨工粪便检体9件 There are 3126 middle-school students in Taipei. There is a restaurant in the school which serves 3 meals daily for residents, and the school uses groundwater in addition to running water in the kitchen. On the evening of March 16, 2008, from 8 pm onwards, one after another of the students were sent to a nearby hospital for abdominal pain, vomiting and diarrhea. At about 2 a.m. on the 17th, about 146 students were on the scene. From March 17 to 21, a total of 18 samples of the students’ anal swabs, 2 stools and 9 kitchen stool samples