中文摘要：

为了解内蒙古东部地区旋毛虫病流行情况和寻找新虫株，采集内蒙古东部呼伦贝尔市、赤峰市、通辽市、兴安盟、锡林郭勒盟五个地区犬血清样品l000份、膈肌样品l000份和猪血清样品20000份、膈肌样品20000份，经EUSA法、压片法和集样消化法进行检测和分析。结果表明：五个地区犬血清总抗体阳性率为6．8％（68／i000），最高的是兴安盟，为14．0％（28／200），最低的是锡林郭勒盟和呼伦贝尔市，为2．5％（5／200），二者差异显著（P〈0．05）；镜检在通辽市和兴安盟的犬膈肌样品中各检测到1份旋毛虫感染病料。五个地区屠宰猪血清总阳性率为0．500％（100／20000），最高为兴安盟0．775％（31／4000），最低为锡林郭勒盟0．275％（1l／4000），二者差异不显著（P〉0．05）：镜检发现兴安盟的猪膈肌样品中有1份旋毛虫感染病料。说明内蒙古东部区猪旋毛虫病血清抗体阳性率相对较低，犬旋毛虫病血清抗体阳性率相对较高。

英文摘要：

To understand the prevalence of trichinosis and to find new Trichinella species in eastern Inner Mongolia, serum and diaphragm sam- ples of 1 000 Canine and 20 000 pigs were collected from five regions in eastern Inner Mongolia： Hulun Buir, Chifeng, Tongliao, Xing＇ an League and Xilin Col League. Then samples were detected by ELISA, squash and sample digestion methods. Results showed that the positive rate of canine serum antibodies was 6.8% （68/1 000 ） which had a significant difference （P 〈 0.05 ） between the highest of 14.0% in Xing＇ an League （28/200） and the lowest of 2.5% （5/200） in Xilin Co1 League and Hulun Buir. Meanwhile, a dog Trichinella infection was found in Tongliao and Ulanhot respectively by the method of squash. The positive rate of pig serum from five regions was 0. 500% （ 100/20 000 ） with the highest of 0. 775 % （31/4 000 ） in Xing＇ an and the lowest of 0. 275 % （11/4 000） in the Xilin Gol League, but there was no significant difference （P 〉 0.05） between these two regions. Furthermore, a swine TrichineUa infection was found only in Xing＇ an by squash method. The results indicate that the eastern region of Inner Mongolia show a lower antibaby positive rate in swine trichinellosis but a higher prevalence rate in dog triehinellosis.