厦门大学学报（自然科学版）2001，Vol.40Issue(2)：503-511,9.
内蒙古东部新巴尔虎右旗泡状肝包虫病原种类及流行学调查
The Speciesand Bioepiderniology of AlveOlar Echinococcus in Xinbaerhu West County, Eastern Inner Mongolia
唐崇惕 1舒利民 1唐亮 2钱玉春 3崔贵文 3康育民 3吕洪昌3
作者信息
- 1. 厦门大学生命科学学院寄生动物研究室,
- 2. HESKA,Fort Comns,
- 3. 内蒙古呼伦贝尔盟畜牧兽医研究所,
- 折叠
摘要
Abstract
This communication reports theresults of a survey on the bioepidemiology of alveolar echinococcus on grasslands of Xinbaerhu West County in Hulunbeier Pasture, Eastern Inner Mongolia ; and the results of experimental infections on laboratory white mice with adults of Echinococcus multilocularis (Leuckart, 1863) and Echinococcus sibiricensis Rausch and Schiller, 1954 collected from Vulpes corsac captured from West County.
Three species of alveolar echinococcus were found from field voles, Microtus brandti in grasslands of Xinbaerhu West County. The three species of alveolar echinococcus were metacestodes of E. sibiricensis (89.4% in positive voles) and E. multilocularis (8.77%), and Alveolaris hulunbeierensis n. sp. (1.76%). These 3 alveolar echinococcus not only differed in the structure of alveolar cysts, but also in the development pattern. They showed different characteristics of separate species.
In the present investigation, of the 647 Microtus brandti captured from three villages of Xinbaerhu West County, 67 (9.94%) were found to be infected with alveolar echinococcus. The infection rates were different in different villages, as follows: Eerdun Village 7. 59% (35/461); Hulun Village 19. 020% (31/163); Baogede Village 2. 0%% (1/50). Infection rates in Spring (April) 12. 61%(15/119)～23.68%(9/38) and in Autumn (Sept.) 17. 60% (22/125)～6. 25% (1/16) were higher than that in Summer (July) 5.85% (20/342)～0% (0/34).
36 Vulpes corsac, 6 Vulpes vulpes and 9 Canis lupus were captured from grasslands of Xinbaerhu West County and were examined. Adults of Echinococcus granulosus were found from 3 (33. 3%) of 9 Cabis lupus, Adults of Echinococcus sibiricensis were found from 2 (5.56%) of 36 Vulpes corsac, one of the 2 positive corsac foxes was mixed infected with the adults of Echinococcus multilocularis (2.76 % ).
Under experimental condition, 203 white mice (Kunmin strain) were orally infected with both gravid proglottids of E. sibircensis and E. multilocularis respectively and mixedly, which were collected from Vulpes corsac captured from Xinbaerhu West County. The alveolar cysts of E. sibiricensis were found from lungs of mice; many germinal cells masses existed in undiferrentiated embryonal cysts cavities of parasite, they metastasized off cysts into lung tissue of host to form brood capsules and protoscolice which manifested in 9th month postinfection; host reaction strong. While the alveolar cysts of E. multilocularis developed in livers of white mice; germinal cells layer which attached on inner surface of cysts wall proliferated by budding pattern to form new vesicles; the protoscolice which grew from germinal cells layer manifested in 5th and 6th months postinfection; host reaction slight. The larval stages of the two species Echinococcus in experimentally infected white mice were similar to those in naturally infected Microtus brandti.
关键词
多房棘球绦虫/西伯利亚棘球绦虫/呼伦贝尔泡状蚴新种/布氏田鼠/沙狐分类
医药卫生引用本文复制引用
唐崇惕,舒利民,唐亮,钱玉春,崔贵文,康育民,吕洪昌..内蒙古东部新巴尔虎右旗泡状肝包虫病原种类及流行学调查[J].厦门大学学报（自然科学版）,2001,40(2):503-511,9.
