广州市2011年登革热疫情流行病学特征分析

Epidemiological characteristics of dengue fever in Guangzhou,2011

目的分析广州市2011年登革热疫情流行病学特征,为登革热预防控制工作提供参考依据。方法对广州市疫情监测与报告信息系统和实验室监测信息系统,以及相关的现场调查报告、疫情简报等进行统计与分析。结果广州市2011年报告登革热病例51例,本地感染33例,输入性病例18例,累计发病率0.4/10万,无死亡病例,输入性病例占全年报告病例的35.29%。除1、2、7月外,其余月份均有病例;共报告突发公共卫生事件1起,为海珠区龙凤街登革热暴发疫情(16例)。实验室监测表明,2011年广州市病毒流行株为登革Ⅰ型病毒。结论 2011年广州市登革热流行处于散发流行状态,输入性病例或异地来广州就诊的登革热病例对广州市登革热流行存在潜在风险。

Objective To analyze the epidemiological characterisitics of dengue fever and thereby provide references for future prevention and control. Method Data from the Infectious Disease Surveillance and Reporting System,the Laboratory Recording Surveillance System,as well as the report from field investigation and epidemic briefings were reviewed and analyzed. Result There were 51 cases of dengue fever reported in 2011.35.29% （18 cases） were the imported cases, and of these cases were coming from south-east Asia. The accumulative incidence was 0.4/105 people with no death. The findings from laboratory surveillance indicated that the epidemic was caused by type-I dengue virus. Conclusions The epidemic of dengue fever in Guangzhou was sporadic. The risk of infection is mainly from the imoorted or the referred cases.