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作者对滦平县金沟屯小学５０７名小学生的蛔虫感染情况进行了调查。结果，总感染率为２５．０５％。提示：蛔虫的感染率随年龄的增高而降低；蛔虫的感染情况和人们的生活水平和卫生习惯密切相关；服用驱虫药对预防蛔虫感染有明显作用
The authors investigated the infection of roundworms in 507 pupils in Jindingqu Elementary School in Luanping County. As a result, the total infection rate was 25.05%. Tip: the infection rate of roundworm decreased with age; roundworm infection and people’s living standards and health habits are closely related; taking de-worming drugs have a significant effect on the prevention of roundworm infection