摘要
目的对一起细菌性痢疾暴发进行流行病学调查,以查明疫情暴发的原因,为采取相应控制措施提供依据。方法建立病例定义,进行个案调查,描述病例的三间分布特点,并对疾病流行的地点开展卫生学调查,寻找导致疾病暴发流行的原因。结果共搜索到病例111例(罹患率为3.50%),喝生水是发病的危险因素。结论这是一次由水源与食源混合传播的福氏志贺氏2a亚型细菌性痢疾暴发,主要原因是侗族人群习惯饮用未经消毒的饮用水和卫生习惯不良。
Objective This epidemiological investigation was conducted to identify the cause of a bacillary dysentery outbreak and to provide evidence for the development of responding measures. Methods Case investigations were conducted based on definite identification of suspected cases, probable cases, clinically diagnosed cases and confirmed cases to outline the time, regional and population distribution. Hygienic surveys were conducted in epidemic areas to uncover the cause of the outbreak. Results A total of 111 cases were identified, the attack rate being 3.50%. Drinking raw water was found to be the main risk factor. Conclusion The bacillary dysentery outbreak was caused by food-borne and water-borne Shigella flexneri 2a. Such insalubrious lifestyles as drink unsterilized water of the Dong Ethnic people were the major contributory factors.
出处
《疾病监测》
CAS
2008年第3期193-194,共2页
Disease Surveillance
关键词
细菌性痢疾
福氏志贺菌
暴发
bacillary dysentery
Shigellaflexneri 2a
outbreak
