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目的对东莞市虎门一起登革热暴发疫情进行分析,以及对蚊虫媒介进行综合治理,为有效控制登革热疫情提供参考。方法针对2014年9月~11月东莞市虎门镇暴发的登革热,采用流行病学调查法分析疫情数据、布雷图指数法监测蚊媒密度以及分析可能传播途径来源等。结果东莞市虎门镇发生一起登革热暴发疫情,本次疫情共报告了57例登革热确诊病例,所有病例均痊愈,没有出现重症病例或死亡病例。疫情主要分布在东方社区,共有39例,占68.42%。本次疫情男女性别比为1:1.28。年龄最小3岁,最大90岁,平均50岁。以30~59岁中年病例最多,占54.39%。疫情发生时蚊媒密度的布雷图指数最高达92.38,经采取各项综合防治措施,蚊媒密度下降,疫情得到较好控制。结论本起疫情为由输入性病例或病媒引起的本土暴发疫情,经过清除积水,消灭蚊虫孳生地,有效将蚊媒密度布雷图指数一直保持在5以下水平;使疫情得到控制。
Objective To analyze the outbreak of dengue outbreak in Humen, Dongguan City and to comprehensively control the mosquito vectors, so as to provide a reference for effectively controlling the epidemic of dengue fever. Methods Dengue fever was detected in Humen Town of Dongguan City from September to November in 2014. Epidemiological investigation was used to analyze the epidemic data. The mosquito density was monitored by the Brettiuard index and the sources of possible transmission were analyzed. Results A dengue outbreak was reported in Humen Town, Dongguan City. A total of 57 cases of dengue fever were reported in this epidemic. All cases were cured without any serious cases or deaths. The epidemic mainly distributed in the eastern community, a total of 39 cases, accounting for 68.42%. The sex ratio of the epidemic was 1: 1.28. The youngest 3 years old, maximum 90 years old, average 50 years old. In the middle age of 30 to 59 years, the most cases, accounting for 54.39%. When the outbreak occurred mosquito density of the Bretton index up to 92.38, after taking various integrated control measures, mosquito density decreased, the epidemic was better controlled. Conclusions The outbreak was caused by imported cases or vector-borne outbreaks of domestic outbreaks. After clearing stagnant water and eliminating mosquito breeding places, the mosquito-density-bred image index is effectively kept below 5 level; the epidemic situation is controlled.