目的了解本次食物中毒的原因并采取措施控制事件的发展。方法采用统一设计的调查表对所有病例进行现场流行病学调查,并由当地政府提供基础资料。结果在病人粪便及猪肉中检出大肠埃希氏菌,判定本次食物中毒为疑似治病性大肠埃希氏菌引起,经采取相应措施后事件得到控制。结论自办酒宴是导致农村集体性食物中毒发生的一个重要原因,加强引导和健康教育,以及食品卫生监管是减少和控制此类食物中毒的重要措施。 Objective To understand the causes of food poisoning and take measures to control the development of the incident. Methods A uniform design questionnaire was used to conduct on-site epidemiological investigation of all cases and the basic information was provided by the local government. Results Escherichia coli was detected in the excrement and pork of the patients and the food poisoning was determined to be caused by the suspected pathogenic Escherichia coli. After the corresponding measures were taken, the events were controlled. Conclusion Self-service banquet is an important reason leading to the occurrence of collective food poisoning in rural areas. Strengthening guidance and health education and food hygiene supervision are important measures to reduce and control such food poisoning.