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目的分析北京市近5年登革热病例流行病学特征,并结合北京市病媒生物监测数据,分析北京市出现登革热暴发的风险。方法采用SPSS软件分析北京市登革热病例的流行病学特征;采用CO_2诱蚊灯法调查北京市蚊类种群构成及其密度。结果 2006-2010年北京市累计报告23例登革热病例,均为输入性病例,其中25～59岁病例占95.65%(22/23),男女性别之比为4.75:1。病例的职业分布以干部职员为主(69.57%,16/23)。与2007年相比,2010年白纹伊蚊的构成比增加了25.71倍,密度增加了6.00倍。结论近几年北京市亚优势蚊种白纹伊蚊密度逐年增加,应继续做好蚊类监测,为登革热防控提供科学依据。
Objective To analyze the epidemiological characteristics of dengue fever cases in Beijing in recent 5 years and to analyze the risk of dengue fever outbreak in Beijing according to the Beijing vector bio-monitoring data. Methods SPSS software was used to analyze the epidemiological characteristics of dengue fever cases in Beijing. The population structure and density of mosquitoes in Beijing were investigated by CO_2 trapping lamp method. Results A total of 23 dengue cases were reported in Beijing from 2006 to 2010, all of which were imported. Among them, 95.65% (22/23) were 25- 59 years old and the ratio of male to female was 4.75: 1. The occupational distribution of cases was dominated by cadres and staff (69.57%, 16/23). Compared with 2007, the composition ratio of Aedes albopictus increased by 25.71 times and the density increased by 6.00 times in 2010. Conclusion In recent years, the density of Aedes albopictus in subdominant mosquito species in Beijing has been increasing year by year. Mosquito monitoring should be continued to provide a scientific basis for prevention and control of dengue fever.