一起高校札如病毒感染疫情调查分析

Investigation of an epidemic of sapovirus infection in an university

目的 调查某高校一起感染性腹泻疫情原因,评估处置措施的有效性,为防控感染性腹泻疫情提供科学依据。方法 采取描述性研究、病例对照研究和回顾性问卷调查等方法,对该起事件调查,结果录入Excel数据库,利用SPSS软件分析数据。结果 该起事件共报告患者66例,罹患率为3.08%(66/2 144),采集32份样本,包括人、食品、水和环境,其中5份学生肛拭子札如病毒阳性,其他均为阴性。结论 本起事件为札如病毒引起的感染性腹泻疫情,最可能的传播危险因素为楼层公共卫生间。

Objective To investigate the cause of an infectious diarrhea epidemic in an university, evaluate the effectiveness of the response measures and provide scientific evidence for the prevention and control of infectious diarrhea. Methods Descriptive research, case-control study and retrospective questionnaire survey were used to investigate the epidemic. The results were entered into Excel database and analyzed by software SPSS. Results A total of 66 cases were reported with an attack rate of3.08%(66/2 144). A total of 32 samples were collected, including anal swabs, drinking water, and surface swabs of food and living environment. Five anal swabs of the cases’ were positive for sapovirus. Conclusion The epidemic of infectious diarrhea was caused by sapovirus. Public toilet using might be the risk factor for the transmission.