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血吸虫新(2013.5).ppt

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血吸虫新(2013.5).ppt

上传人:wz_198613 2018/7/7 文件大小:14.75 MB

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血吸虫新(2013.5).ppt

文档介绍

文档介绍:分类
扁形动物门(Phylum Platyhelminthes)
吸虫纲(Class Trematoda)
复殖目(Order Digenea)
裂体科(Family Schistosomatidae)
扁形动物门(Phylum Platyhelminthes)
复殖纲(Class Digenea)(吸虫纲Trematoda)
鸮形目(Order Strigeida)
裂体科(Family Schistosomatidae)
主要虫种:
日本血吸虫(Schistosoma japonicum)
曼氏血吸虫(Schistosoma mansoni)
埃及血吸虫(Schistosoma haematobium)
间插血吸虫(Schistosoma intercalatum)
眉公血吸虫(Schistosoma mekongi)
马来血吸虫(Schistosoma malayensis)
日本血吸虫
Schistosoma japonicum
据湖南长沙马王堆西汉女尸及湖北江陵西汉男尸体内发现典型日本血吸虫卵的事实,证明2100余年前,我国长江流域已有日本血吸虫病的流行。1905年,Catto在新加坡解剖一例死于霍乱的福建籍华侨尸体时,在肠系膜静脉中检获了日本血吸虫成虫。同年,Logan在湖南常德县的一名18岁男性农民粪便中检出日本血吸虫卵。
Historical and Geographical Notes.
在柬埔寨、老挝和泰国发现的湄公血吸虫,过去认为系日本血吸虫的一株,1978年Voge等根据其虫卵比日本血吸虫的四个地理株的虫卵小,中间宿主为开放拟钉螺(Tricula aperta),开放前期也较其他四个地理株为晚等而定为湄公血吸虫。在马来西亚的类日本血吸虫已确定为马来血吸虫( S. malayensis, Greer et al,1988),其中间宿主为卡波小罗伯特螺(Robertsiella kaporensis) 及吉士小罗伯特螺(R. gismanni)。
Schistosoma japonicum Katsurada,1904
Synonym. Sinobilharzia japonica Le Roux, 1958.
Schistosomiasis japonica was first mentioned by Fujii, a Japanese physician, in 1847
Baelz (1883) made the first epidemiologic survey in Okayama Prefecture, Japan, but attributed the disease to Clonorchis sinensis
Yamagiwa (1890), Kurimoto (1893), and especially Fujinami (1904) found eggs of the parasite in ans of patients and ascribed the etiologic role in the infection to the eggs.
Kasai (1903) first found the eggs in feces.
Fujinami(l904) first found the female worm in the portal vein.
Katsurada (1904) first described the adult worms, obtained from infected dogs and cats, and assigned to the parasite a new specific name, . ,japonicum.
Logan (1905) diagnosed the first case in China.
The experimental work of Fujinami (1909), Miyagawa (1912-1913), and Miyairi and Suzuki (1913-1914) furnished proof for the life cycle of S. japonicum and provided a basis for Leiper's work on the blood flukes in Egypt (1915-1918).
Details of the biology and pathogenesis of S. japonicum were described by Faust and Meleney in 1924.
This infection is c