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防制与效果考核以往认为寄生于人体的血吸虫,有曼氏血吸虫、埃及血吸虫和日本血吸虫3种。近来新的概念认为,每一主要虫种是由许多亚种组成的复合体。三种血吸虫不仅对化学药物作用的反应显著不同,而且很可能在亚种或虫株之间也存在着相对感染性的差别。防制血吸虫病的技术虽有了一定的进展,但近20年来只有少数国家取得相当的成效,发病率有所下降,而在拉丁美洲、非洲、中东以及东南亚有很多地区流行仍然相当严
Prevention and effect evaluation In the past that parasitic on human schistosomiasis, Schistosoma mansoni, schistosoma japonicum and Schistosoma japonicum 3 species. Recently, the new concept holds that each major species is a complex of many subspecies. Not only did the three schistosomes respond differently to the effects of the chemotherapeutic drugs, but it is also likely that there is also a relative infectivity difference between subspecies or insect strains. Although some progress has been made in the prevention and treatment of schistosomiasis, only a few countries have achieved considerable success in the past two decades with a reduced incidence rate. In Latin America, the prevalence in many parts of Africa, the Middle East and South-East Asia is still rather severe