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目的 :1999年夏秋季福州郊区发生登革热暴发流行 ,白纹伊蚊是当地传播媒介 ,为迅速控制疫情 ,在流行区实施以灭蚊为主的防制措施。方法 :开展以健康教育、环境治理、清除无用积水和减少媒介滋生环境为主的爱国卫生运动 ;使用高效氟氯氰菊酯和强力克敌等拟除虫菊酯类杀虫剂 ,以 2 0mg/m2 实行滞留喷洒和空间喷洒灭蚊。灭蚊前、后调查白纹伊蚊种群密度 ,以房屋指数、容器指数、布雷图指数和成蚊刺叮率评价防制效果。结果 :灭蚊前白纹伊蚊房屋指数 5 6 .5 ,容器指数 5 4.5 ,布雷图指数 175 .5 ;灭蚊后分别下降为 2 .4、11.5和 4.0 ,下降率分别为 95 .8% ,78.9%和 97.8% ;刺叮率从灭蚊前平均 42 .3只 /人工小时下降为零 ,从 10月 12日后未再发现新病例。结论 :防制措施得当有效 ,白纹伊蚊种群密度显著下降 ,登革热流行迅速得到控制
Aims: Dengue outbreaks occurred in the suburbs of Fuzhou in summer and autumn of 1999. Aedes albopictus was the local media. In order to control the epidemic rapidly, the anti-mosquito measures were mainly implemented in epidemic areas. Methods: Patriotic public health campaigns focusing on health education, environmental management, elimination of waste water uselessness and reduction of media breeding environment were carried out. The pyrethroid insecticides, such as beta-cyfluthrin and potent gamma-ene, were administered at 20 mg / m2 Spraying and space spraying mosquito. Before and after mosquito control, the population density of Aedes albopictus population was investigated, and the control effect was evaluated by housing index, container index, Brett index and mosquito bite rate. Results: Before the mosquito control, the house index of Aedes albopictus was 56.5, the container index was 4.55 and the Brettii index was 175.5. After the mosquito control, it dropped to 2.4, 11.5 and 4.0 respectively, and the decreasing rates were 95.8% , 78.9% and 97.8% respectively. The sting rate dropped from an average of 42.3 / artificial hour before mosquito control to zero. No new cases were found after October 12. Conclusion: The control measures are effective, the population density of Aedes albopictus declines significantly, and the epidemic of Dengue is rapidly controlled