摘要
目的为了掌握疟疾疫情和按蚊密度动态以及影响疟疾流行的相关因素,为今后库区疟疾防治提供基础数据和依据。方法收集、整理三峡库区与疟疾流行的相关资料、建国后疟疾流行概况、媒介种群及分布等资料。1999年建立三峡库区疟疾监测点,监测疟疾疫情和按蚊种群、密度变化动态。结果收集、整理了三峡库区的基线资料。三峡库区历史上曾有间日疟和恶性疟流行,20世纪60年代后无恶性疟发生,建国初期疟疾大流行,70年末控制流行。传疟媒介主要为中华按蚊。监测结果显示,疟疾疫情稳定,年发病控制在1/万以下;发热病人血检和儿童IFAT检测结果均为阴性;传疟媒介5～10月叮人率在1～9.6只/人·夜之间,牛房密度在6～360只/人工小时之间。结论目前,疟疾年发病率控制在1/万以下,但是,传染源存在,媒介广泛分布,水库建成蓄水后,流速减缓、水面增宽、消落带积水均为按蚊孳生提供了有利条件,开展监测是必要的。
Objective To analyze malaria epidemic, anopheles population and the relevant factors affecting malaria epidemic and provide scientific basis for prevention and conrol the malaria. Method Epidemilogical data including those from the areas around the Three Groge Dam of malaria were collected and anslyzed. Result The areas around the Three Groge Dam had a history of tertian malaria and subtertian malaria epidemic. There was no subtertian malaria after 1960. The incidence per year was steady below 1 since 70 s. The blood test result for all patients including children with fever was negative. The principal transmitting vectors were Anopheles sinensis. The man-biting rate was between 1 -9.6/person/night from May to September. The density of anopheles in cow hogpen was 6-360/head. Conclusion It is necessary to monitor the status of malaria because extensive vector distribution, slowing down of the water flow, widening of the water surface and stagnant water formation after contruction of the Three Groge Dam, which provids favorable conditions for anopheles mosquito breeding.
出处
《热带医学杂志》
CAS
2009年第6期685-688,共4页
Journal of Tropical Medicine
关键词
三峡
疟疾
按蚊
监测
Three Groges
malaria
anopheles
surveillance
