广东省汕头市登革热媒介蚊虫幼虫密度与孳生地调查

Investigation on the Density and Larval Habitats of Dengue Vectors in Shantou,Guangdong Province

目的:调查汕头市登革热媒介蚊虫幼虫孳生地类型和孳生密度,为登革热防治提供基础资料。方法:对汕头市旅游景点内民居、寺庙、墓园和市郊农村共362个采集点进行幼虫标本采集、饲养,并对四龄幼虫和雌、雄成虫进行鉴定。结果:汕头市与人居环境关系密切的蚊虫主要有白纹伊蚊、致倦库蚊、褐尾路蚊、海滨库蚊、刺扰伊蚊、白胸库蚊、骚扰阿蚊、东乡伊蚊、马来库蚊、窄翅伊蚊、五指库蚊、无梳库蚊与竹生杵蚊。白蚊伊蚊幼虫的布氏指数超过5级的孳生地占调查点的70.53%(146/207)。结论:汕头市仍然是登革热流行高度危险区,应引起广大市民和政府部门的高度重视,采取必要安全防范措施。

Objective： To survey the larval habitats and density of dengue vectors in Shantou city. Methods： A survey for mosquito larvae was conducted to 362 collecting spots in residential areas including human houses, temples, cemeteries, outskirts and rural areas in Shantou city. The larvae were reared in the laboratory and identified for the fourth instar and adults of male and female. Results： Breteau indices were over 5 degree in more than 70.5% （146/207）of the habitats. Mosquito larvae colleted were Ae. albopictus, Cx. quinquefasciatus, Lu. fuscanus, Cx. sitiens, Ae. vexans, Cx, pallidothorax, Ar. subalbatus , Ta. togoi, Cx. malayi , Ae. lineatopennis Cx. barrandi Cx. dispectus and Tr. bambusa. These mosquitoes were breeding colse to human living environment, Conclusion ： Shantou city is still a high risk region of dengue in Guangdong Province. The citizens and the government should pay more attention on mosquito control and take safety measures to prevent mosquito-borne diseases.