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1 调查对象与方法 1.1 选择华支睾吸虫病高发、中发、低发乡的小学、初中与高中13所学校的5962名学生作为抽检对象,进行粪便检查,与1975年该乡调查结果对比。同时分层抽样粪检。 1.2 前后两次粪检均采用倒置沉淀法;阳性者询问食鱼虾方式,并建立病历。 1.3 对螺蛳采用解剖镜检;鱼类采用分片及人工消化法镜检;犬、猫、猪采用解剖肝胆检
1 Subjects and Methods 1.1 Select 5962 pupils from 13 schools in primary, middle and high school of high, middle and low incidence of clonorchiasis were selected as the sampling objects for stool examination and compared with the survey results of the township in 1975. At the same time stratified sampling fecal examination. 1.2 before and after the two excreta were inverted precipitation method; positive asked to eat fish and shrimp methods, and establish medical records. 1.3 Spirocharged using microscopic examination; fish using fragmentation and artificial digestion microscopy; dogs, cats, pigs using anatomical liver gallbladder