1978~2014年我国登革热的流行病学分析

Epidemiology of dengue fever in China since 1978

自1978年以来，我国几乎每年都有登革热病例报告，表现为间断性流行，有每隔4~7年发生1次流行的趋势。高发年龄段为20~60岁，男女发病比例接近；4个血清型均有流行，但以1型为主。1997年以后，登革热疫情得到一定的控制，但2013年开始，登革热发病率明显上升，尤其是2014年，流行规模更是达到1986年以来的新高。截至11月23日广东省登革发病人数已经达到44894人，疫情的严重性已经引起高度关注。本文对1978年以来我国登革热的流行状况、地区和人群分布以及今年登革热疫情大爆发的影响因素等进行了分析。

Since 1978, dengue fever occurred endemically and epidemically every 4 to 7 years in China, affecting commonly people aged between 20 and 60 years with similar incidences in males and females. Four serotypes of dengue virus have been identified in China, with DENV-1 as the predominant serotype. The incidence of dengue fever became gradually decreased after 1997 but increased significantly in the recent two years, especially in 2014, where, up to November, a total of 44894 cases had been reported in Guangdong Province. In this review, the authors summarize the epidemiology, geographical and population distribution of dengue fever in China since 1978 and analyze the factors contributing to the outbreak in 2014.