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目的了解福建省不同地区白纹伊蚊种群密度及生态特征,为评估登革热传播风险,预防和控制登革热暴发流行提供依据。方法调查不同地区白纹伊蚊幼虫密度;调查居民室内外积水容器的种类和幼虫孳生情况。结果白纹伊蚊平均布雷图指数(breteau index,BI)、房屋指数(house index,HI)和容器指数(container index,CI)分别为84.5、46.9和43.1;莆田涵江、福州连江、厦门集美、漳州东山、宁德福鼎和南平武夷山的布雷图指数分别为73.1、109.5、87.3、74.7、63.1和61.9;幼虫孳生地类型以废弃的缸、罐、桶、碗等闲置容器为主。结论福建省登革热媒介白纹伊蚊幼虫密度大大超过登革热流行高危险指数,存在登革热暴发流行的风险。
Objective To understand the population density and ecological characteristics of Aedes albopictus in different areas of Fujian Province and provide the basis for assessing the risk of dengue fever and preventing and controlling the outbreak of dengue fever. Methods The density of Aedes albopictus larvae in different regions was investigated. The types of indoor and outdoor water containers and the breeding of larvae were investigated. Results The average breed index (BI), house index (HI) and container index (CI) of Aedes albopictus were 84.5, 46.9 and 43.1, respectively. The proportions of Putian Hanjiang, Fuzhou Lianjiang and Xiamen The Brettones index of Jimei, Dongshan, Zhangzhou, Ningde, Fuding and Nanping Wuyishan were 73.1, 109.5, 87.3, 74.7, 63.1 and 61.9, respectively. The larvae breeding areas were dominated by abandoned tanks, cans, drums and bowls. Conclusion The dengue vector density of Aedes albopictus in Fujian Province is much higher than the high-risk index of dengue epidemic and there is a risk of dengue outbreak.