广播电视英语短句 第 79 课：遭受剧烈头疼-5

These included more than six thousand cases of dengue hemorrhagic fever. 其中有 6 千多例为出血性登革热。

Dengue victims sometimes develop bleeding. This is dengue hemorrhagic fever. 登革热患者有时会发展为出血症状，这就是出血性登革热。

The W.H.O. says it was first recognized in the nineteen fifties. 世卫组织称出血性登革热的首次确认是在 20 世纪 90 年代。

Today it affects most Asian countries and is a leading cause of serious disease and death in children. 目前，它正在侵害大部分的亚洲国家，是导致严重疾病及儿童死亡的首要原因。