一起多源性污染所致的攀枝花市某高校菌痢爆发调查分析

Investigation and Analysis Of Bacillary Dysentery Outbreak In Panzhihua University

目的查明该高校茵痢爆发的流行因素,并迅速、有效控制该校菌痢疫情。同时对此次突发公共卫生事件进行分析评价,为制定我区肠道传染病防制对策提供科学依据。方法采用流行病学调查中的现场调查和个案调查,临床和实验室诊断,Excel 统计方法。结果该校共发生90例菌痢,无死亡病例;全校学生罹患率为7.21‰;病例大便培养发现志贺氏菌,食堂饮用水采样检测发现细菌总数超标,有2例炊管人员栓出奇异变形杆菌,炊具检出奇异变形杆菌、志贺氏菌等。经控制传染源、切断传播途径、保护易感人群等措施后,此次茵痢爆发得到控制。结论此次菌痢爆发是一起多源性污染,主要为局部水源、食品污染及未经处理的生活污水浇灌绿化地而引起的菌痢爆发。其经验教训将为我区制定学校传染病防治对策、紧急应对突发公共卫生事件提供针对性依据。

Objective in order to find the source of infection of the bacillary dysentery in this outbreak and to find the epidemic factor and to find the methods to control the transmission of bacillary dysentery through the analysis. This will be beneficial to provide the science evidence. Methods Used the field study and case study of the epidemiological investigation, Used laboratory diagnosis and clinical diagnosis Results there are 90 patients in the university and none died Through field study and case study of the epidemiologlcal investigation find the attract rats was 7.21‰, Patients＇ move bowels to educate examine genus Shigellae. Water quality of Dining room monitoring find total bacterial count was much higher than hygienic standard of water quality. 2 cooking members had P, mirabilis, cooking utensils examine P. mirabilis and genus Shigellae, etc. Through controlling source of infection, cutting route of transmission, protecting susceptible, the outbreak of bacillary dysentery had been controlled. Con- clusions This outbreak of Bacillary dysentery was caused by ma;ly factors, maybe partial headwaters and food were polluted and the undisinfecting living dirty water were used once more. The experience will provide basis to control abrupt public hygiene affairs and establishment school infectious disease prevention and cure plan.