目的分析一起诺如病毒感染性腹泻暴发的原因和传播途径,为制定防制对策提供科学依据。方法现场流行病学调查,采集患者粪便、扛拭子和水样品进行致病菌、诺如病毒的检测。结果 10份患者样品和4份水样品诺如病毒荧光PCR结果阳性,测序分析两者一致;未检出致病菌。结论确定这是一起水源性诺如病毒感染性腹泻的暴发疫情,隔离传染源、切断传播途径是预防和控制此病的有效措施。 Objective To analyze the causes and routes of transmission of a Norovirus infectious diarrhea and provide a scientific basis for the development of control strategies. Methods Epidemiological investigation was conducted in this study. The stools, swabs and water samples of patients were collected for pathogen detection and Norovirus detection. Results Ten patients and four water samples were positive by Norovirus RT-PCR. The sequencing analysis showed no difference between the two. No pathogens were detected. Conclusion It is confirmed that this is a outbreak of infectious norovirus infectious diarrhea. Isolating the source of infection and cutting off the route of transmission are effective measures to prevent and control this disease.