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目的 :掌握上海地区发生登革热的危险程度 ,了解媒介蚊虫孳生习性与分布 ,为制定防制方案提供依据 ;方法 :在现场不同环境和容器采集蚊虫幼虫与人诱法 ;结果 :①在上海地区未捕到埃及伊蚊 ,②白蚊伊蚊幼虫出现期为 4～ 11月 ,幼虫数量高峰为 6～ 9月 ,③ 6～ 9月间白纹伊蚊的房屋指数 8 9,容器指数 8 5 9,布雷图指数 12 19,幼虫密度指数 2 16,叮刺指数每 3 0min为 8 3只 ,WHO值达Ⅲ级 ,其数量已达到能引起登革热流行的程度 ,④幼虫孳生广泛 ,以轮胎、缸罐、花盆、竹节等小容器为主 ,⑤幼虫阳性率在城乡间 ,不同房屋结构的住区间 ,不同单位间有显著差异 (P <0 0 1) ;结论 :上海地区登革热媒介蚊种为白纹伊蚊 ,其媒介数量已处于危险程度 ,应密度关注 ,加强媒介能量监测 ,及时制定有效的预防措施
OBJECTIVE: To master the risk of dengue fever in Shanghai, understand the habits and distribution of mosquito breeding and provide the basis for the development of control strategies. Methods: Mosquito larvae were induced in different environments and containers at the scene. Results: Aedes aegypti was caught, ② Aedes larvae of white mosquito appeared from April to November, and the larvae peaked from June to September. ③The house index of Aedes albopictus from June to September was 89, and the index of containers was 859 , The Bretti Index 12 19, the larval density index 216, the sting index 83 every 3 0min, the WHO value reached grade III, the number has reached the level that can cause dengue fever epidemic ④ larvae widespread, with tires, cylinder Pots, pots, bamboo and other small containers, the positive rate of larvae in urban and rural areas, different housing structure of residential areas, different units were significantly different (P <0 01); Conclusion: Dengue media mosquito species For Aedes albopictus, the number of its media is at a dangerous level, should be the density of attention, to strengthen the media energy monitoring, the timely development of effective preventive measures