疟疾仍然是人类致死的主要寄生虫病,在热带区分布很广,估计每年有一亿五千万病例。仅在热带非洲每年病死者约为一百万,主要为儿童,所有临床病例的15％为疟疾所引起。控制媒介昆虫及预防治疗等扑灭措施在非洲并不成功,而在受严重复发威胁的亚洲仅只产生暂时作用。疟疾的发病率和病 Malaria remains the leading human parasitic disease in the world and is widely distributed in tropical areas with an estimated 150 million cases annually. About one million people die annually in tropical Africa alone, mainly children, and 15% of all clinical cases are caused by malaria. Fighting measures such as the control of vector insects and prophylactic treatment were not successful in Africa, but only had a temporary effect in Asia threatened by a serious recurrence. Malaria morbidity and disease