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为了解我市中、小学生蛔虫感染情况,我们于1986年用直接涂片法和饱和盐水漂浮法,对市区四所中、小学校,647名学生进行了蛔虫感染调查和服药后驱蛔效果观察。四所学校蛔虫感染率为39.87％(258/647),其中小学
To understand the city of primary and secondary roundworm infections, we used direct smear method and saturated saline floating method in 1986, the city of four primary and secondary schools, 647 students were investigated roundworm infection and administration of roundworm effect observed . The infection rate of Ascaris in four schools was 39.87% (258/647), of which primary school