本文报告某学院发生疑似食物中毒,发病三十余人,病人有恶心、呕吐、腹部不适、腹泻等胃肠道症状。采集可疑食物冻鸡及病人肛拭进行沙门氏菌属、志贺氏菌属及空肠弯曲菌分离鉴定未获成功。但从细菌形态、EMB 菌落特点、噬菌体裂解试验(E 及E_4完全裂解)及生化反应概率确认优势菌为艾希氏大肠杆菌,经用家兔肠结扎试验测定 This article reports a suspected food poisoning occurred in a college, the incidence of more than 30 people, patients with nausea, vomiting, abdominal discomfort, diarrhea and other gastrointestinal symptoms. Collection of suspected food frozen chickens and patient anal swab Salmonella, Shigella and Campylobacter jejuni separation and identification of unsuccessful. However, from the characteristics of bacteria, EMB colonies, phage lysis test (E and E_4 complete lysis) and the probability of biochemical reaction, the predominant bacteria were Escherichia coli, which was determined by intestinal ligation in rabbits