2013年广州市荔湾区登革热疫情流行病学特征分析  

The epidemic characteristics analysis of dengue fever in Liwan district of Guangzhou city in 2013

作　　者：杨丽莉[1] 景钦隆[2] 曾伟锋[1] 王敏[1] 蔡明伟[1] 杨翠辉[1] 何国宽[1] 范健文[1] 

机构地区：[1]广州市荔湾区疾病预防控制中心,广东广州510176 [2]广州市疾病预防控制中心,广东广州510440

出　　处：《热带医学杂志》2014年第10期1367-1369,F0003,共4页Journal of Tropical Medicine

摘　　要：目的分析广州市荔湾区2013年登革热疫情流行病学特征,探讨预防控制措施。方法对各医院报告的荔湾区病例进行流行病学个案调查,采集病例血液样本开展血清学或病原学检测,并划定疫点进行蚊媒调查和病例搜索。结果广州市荔湾区2013年报告本地登革热病例781例,发病率为86.95/10万,无死亡病例;流行季节为7月下旬至11月下旬,高峰为9月下旬至11月上旬;男女性别比1∶1.14;发病年龄最大92岁,最小2岁,以中青年为主。全区疫情以城乡结合部为主,随后向老城区扩散,最后波及21个行政街,有8个较大暴发点;病毒型别主要为登革Ⅰ型。结论2013年荔湾区发生登革热大流行,持续时间长,波及范围广,疫情主要发生在城乡结合部。病媒控制不理想是疫情扩散的主要原因。荔湾区存在不利于登革热防控的自然和社会因素。Objective To analyze the epidemiological characteristics of dengue fever in Liwan district of Guangzhou city in2013 and explore the measures for prevention and control. Methods Cases reported by notifiable infectious disease report system were surveyed with blood samples collected for dengue virus testing serologically and etiologically, followed by investigation of mosquito density and case-finding in epidemic focus. Results There was 781 cases of dengue fever in Liwan district of Guangzhou city in 2013. The incidence rate was 86.95 per 100 000 and no death case. The epidemic season was from late July to late November, and the peak epidemic season was from late September to early November. Sex ratio（male / female） is 1∶1.14. The eldest case was 92 years old and the youngest was 2, most of the patients were young and the middle age people. The epidemic was mainly in the rural-urban fringe, and then spread to the urban areas, finally involving21 administrative Streets with 8 outbreak spots. The pathogen is mainly dengue virus type I. Conclusion The dengue fever epidemic in Liwan district of Guangzhou city in 2013, which was long duration and spread widely. The dengue fever epidemic occurred mainly in the rural-urban fringe, attributing the causes to unsuccessful mesures for vecto control. The epidemic situation in this district was related to the local natural environment and social factors.

关 键 词：登革热 登革病毒 流行病学 

分 类 号：R373.33[医药卫生—病原生物学]