广州市东山区2002年登革热流行病学特征分析

目的 明确东山区登革热流行因素，探讨预防控制措施。方法 对各医院收治病例的报告进行流行病学个案调查。结果 2002年5～11月东山区发生了Ⅰ型登革热疫情暴发流行，本区常住人口发病共314例，发病率51．43／10万，无死亡病例。疫情波及10条行政街，有多个暴发点，其发病年龄最大87岁，最小2岁，男性143例，女性17l例，血清学检查登革热抗体阳性277例。结论 本次登革热流行是继1995年以来发病率最高、暴发点多、夹杂家庭聚集、流行时间长的一次发病，且传染源未明，预防控制是一项长期、复杂的工程，要持之以恒。

Analysis of the Epidemiological Characters of Dengue Fever in Dongshan District of Guangzhou City in 2002

Objective To understand the epidemiogical characters of dengue fever(DF), and to set up the prevention and control measure against it. Method Standardized questionnaire survey was conducted. Results An outbreak of DF type I occurred from May to November in 2002. The incident rate of the outbreak was 50.06/100000 and no death toll. Cases were found in every block and a number of outbreak spots occurred. The eldest case was 87 years old and the youngest was 2.143 cases were male and 171 cases were female. 277 cases were proved to have DF antibody by serological tests. Conclusions It is the highest incident rate since 1995. A number of outbreak spots and family aggregation providing a long term, unidentified reservoir of infectious source were the epidemic characters of this outbreak of dengue fever. The prevention and control against dengue fever would be a long term and complex work.