3种免疫学方法检测中学生棘球绦虫的感染现况

An Epidemiologial Survey of Hydatidosis among the Tibetan Secondary School Students in Tianzhu County with Three Immunological Methods

目的：了解甘肃省天祝县藏族中学生中棘球绦虫的感染情况。方法：用ID、IHA、ELISA试验、B超及X线对无祝县藏族中学生451名进行了包虫病流行病学调查。结果：试验3种方法所检出阳性率依次为9．5％、1．6％和9．1％。用B超和X线检查免疫学检测阳性者，发现其中有4例包虫病患者，其患病率为0．9％。结论：感染率牧区高于半农半牧及城镇；有狩猎史者阳性率显著地高于无狩猎史者；两家养羊只数量与人群阳性率呈正相关，有无家养犬及放牧史对感染棘球绦虫无显著影响。

Ojective:To understand the infection rate of hydatid syst among the Tibetan secondary school students.Method:Hydatidosis was examined by ID,IHA, ELISA,Ultrasonography,fluoroscopy among 451 Tibetan students in Tianzhu county,Gansu province.Results:The positivity rates were9.5%,1.6% and 9.1 % in 451 Tibetan students when examined by ID,IHA and ELISA respectively.Among immunological positive students,four cases of hydatidosis were found by addominal ultrasonography and X - ray examination,the prevalence rate was 0.89%. Conclusion:The positivity rate was significantly higher in pastoral areas than in agricultural and pastoral areas and in city proper,it was also higher in hunting populations than in no - hunting populations.Dog-keeping and grazing had no effect on the infection rate.However.the number of sheep owed by a family was positively correlated to the rate.