Environmental adaptation of Taeniods in Latin America

寄生虫适应环境，在疫区趋于稳定。细粒棘球绦虫在世界范围内均有分布，尤其是在养羊大国，是重要的人畜共患病。猪带绦虫也是一种人畜共患病，在拉丁美洲引起脑囊虫病。种内变异在E.在世界上的颗粒，有许多变异的报道。本文报道了细粒棘球绦虫、沃氏棘球绦虫和猪带绦虫在拉丁美洲的流行状况和环境适应性。我们对洪都拉斯和巴西的猪进行了猪带绦虫调查，但在巴西很难找到阳性病例。乌拉圭最重要的产业是畜牧业。E. 1991年和1999年测定了绵羊粒细胞体。在乌拉圭，对E. 1991- 1992年改变了granulosus。1998- 1999年，绵羊中的流行率急剧下降。1998年很难找到受感染的狗。因此，我们尝试制备单克隆抗体，为建立一种新的高灵敏度的犬免疫诊断方法奠定基础。单克隆抗体对多房棘球绦虫有一定的诊断价值。E.在乌拉圭的颗粒没有显示在我们的样品从羊。我们试图建立E. granulosus和E. vogeli，仅对E. vogeli使用用泼尼松龙处理的蒙古沙鼠。本文观察了沙鼠小肠的发育过程。

Parasites adapt to their environment, and become steady in endemic area. Echinococcus granulosus are distributed in world wide, especially sheep breeding countries, and important zoonosis in such countries. Taenia solium is also zoonosis, and cause the cerebral cysticercosis in Latin America. Intraspecific variations are prominent in E. granulosus in the world, there are many variations are reported. Epidemiologicalstatus and environmental adaptation of Echinococcus granulosus, E, vogeli and Taenia solium in Latin America were studied. We carried out a survey of Taenia solium in pigs of Honduras and Brazil, but very difficult to find positive cases in Brazil. Most important industry of Uruguay is livestock industry. Prevalence of E. granulosus in sheep was determined in 1991 and 1999. In Uruguay, Control measure against E. granulosus was changed in 1991-2. The prevalence in sheep had been drastically reduced in 1998-9. It is very difficult to find infected dogs in 1998. So, we tried to produce monoclonal antibodies for developing a new high sensitive immunodiagnostic method for dogs using monoclonal antibodies. A monoclonal antibody was useful for Echinococcus multilocularis. Intraspecific variations of E. granulosus in Uruguay were not shown in our samples from sheep. We tried to establish alternative definitive hosts of E. granulosus and E. vogeli, and succeed only for E. vogeli using Mongolian jirds treated with predonisolone. The development in the small intestine were observed in jirds.