日本血吸虫单性感染虫体与复性感染虫体的比较

发布时间：2018-06-24 19:17

本文选题：日本血吸虫 + 单性感染　；参考：《中国血吸虫病防治杂志》2016年06期

【摘要】：目的对单性感染或复性感染钉螺的日本血吸虫发育结果进行观察。方法采用单个毛蚴感染单个钉螺,26℃恒温箱中饲养,60 d后逸蚴感染小白鼠(单性感染),40 d后解剖小白鼠,以检获的成虫性别鉴别各个钉螺中的尾蚴性别。再分别以单性尾蚴和混合双性尾蚴感染鼠、兔,40 d后解剖观察宿主感染情况及虫体。结果单性感染小鼠和兔后解剖获得日本血吸虫雄虫或雌虫。复性感染小鼠或兔后检出的虫体主要有3种形态:雌雄合抱、雄虫和雌虫,极少数能看到雄虫合抱未发育成熟雌虫的现象。单性感染的鼠、兔肝脏均未见虫卵,而复性感染的鼠、兔肝脏均查见虫卵。单性感染的雄虫能发育成熟,但体型较合抱成熟的雄虫略小,仅凭肉眼难以与合抱成熟雄虫区分;而单性感染的雌虫则不能发育成熟,镜下卵巢不易见到或仅见到雏形,体型明显细小。结论单性感染的雄虫和雌虫体型比复性感染合抱成熟的雄虫和雌虫的体型小,单性感染的雄虫能发育成熟,而雌虫则不能发育成熟。在解剖哨鼠时,即使未查见肝脏虫卵,仍需检查肠粘膜血管中是否有单性感染的血吸虫。
[Abstract]:Objective To observe the results of the development of Schistosoma japonicum in single infective or complex infected Oncomelania Snail. Methods a single Oncomelania infected single Oncomelania snails were infected with single oncomelania, 26 C in a constant temperature box, 60 d of ecariae infecting small mice (single infection), and 40 d after dissecting the mice. The infection and the body of the host were anatomically observed after the infection of cercariae and mixed bisexual cercariae in mice, rabbits and 40 d. Results the male and female parasites of Schistosoma japonicum were dissected after a single infection of mice and rabbits. There were 3 main forms of the insect body detected in the mice or rabbits of the compound infection: male and male, male and female. The phenomenon of mature females. No eggs were found in the liver of single infected rats and in the liver of rabbits, while the eggs were found in the liver of the compound infected rats and in the liver of the rabbits. The male and female worms of the single sex infection are smaller than the male and female of the complex infection, the male of the single sex infection can develop mature, but the female can not mature. A single infection of schistosomiasis.
【作者单位】：江苏省南京市疾病预防控制中心;
【基金】：[基金项目]南京市卫生青年人才培养工程(QRX11127)
【分类号】：R383.24

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