登革热是一种由蚊媒传播的传染病,近年来已经成为主要的国际公共卫生问题。在过去的30年中,登革热的地理分布己经扩大而且其病例数已经急剧增加。现在有100多个国家是该病的地方性流行区,威胁着世界人口的40％,尤其是在热带和亚热带地区、城市及其周边地区。1998年世界卫生组织共报告了超过1,200,000病例,是历年来最多的一次。据估计每年 Dengue fever, a mosquito-borne infectious disease, has become a major international public health issue in recent years. The geographical distribution of dengue has expanded over the past 30 years and the number of cases has dramatically increased. More than 100 countries are now endemic endemic areas of the disease, threatening 40% of the world’s population, especially in tropical and subtropical areas, cities and their surrounding areas. In 1998, WHO reported a total of more than 1,200,000 cases, the largest number in all the years. It is estimated that every year