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为了解我县中小学生肠道蠕虫感染情况及阿苯哒唑防治肠道蠕虫感染的效果，为今后开展群防群治提供依据，现将我县1991～1994年的防治情况总结报道如下。1对象与方法1．正对象：采用分层抽样活抽取城乡一部分中小学的初一和小学一年级各50名学生，其它年级各20名学生作为调查对
In order to understand the county primary and secondary school students intestinal worm infection and albendazole intestinal infection prevention and control of the effect for future prevention and treatment of groups to provide the basis for the prevention and treatment are now my county 1991-1994 summarized as follows. 1 objects and methods 1. Positive Target: Using stratified sampling to sample 50 primary and primary freshmen in urban and rural areas and 20 students in other grades as the survey