论文部分内容阅读
室内繁殖第2,3代东方田鼠及疫区湖洲野生东方田鼠对日本血吸虫感染无明显差异。日本血吸虫可感染东方田鼠,但在其体内不能发育成熟,故不使其致病。幼虫最早于感染后第2天到达肺脏,第4天转移到达肝脏,而且还可在门-肠系膜静脉系统中发现少数虫体。虫体在鼠体内生存时间一般3周左右,虫体大小和结构均停留在第11天以前水平,仅见口、腹吸盘形成,肠管会合出现。日本血吸虫在东方田鼠体内的主要消亡部位是肝脏,异物性炎症反应结节是机体消除虫体的方式。
The second and third generation of Oriental voles breeds indoors breeding and epidemic area Lake Eastern wild vole without significant difference in infection of Schistosoma japonicum. Schistosoma japonicum can infest the eastern vole, but not mature in its body, it does not make it pathogenic. The earliest larvae reach the lungs on the second day after infection and reach the liver on the fourth day, but also detect a few parasites in the portal mesenteric vein system. The survival time of the worms in mice is generally about 3 weeks, the size and structure of parasites remain in the level before the 11th day, only to see the mouth, abdominal sucker formation, bowel together. Schistosoma japonicum in the body of the voles in the main parts of the body of the demise of the liver, foreign body inflammatory reaction nodules is the way the body to eliminate worms.