哈尔滨市幼儿园儿童及中小学生肠道线虫感染情况的调查

本文报告1964—1980年对哈尔滨市区及郊县农村儿童肠道线虫感染情况的几次调查结果。用胶玻纸拭法检查一次,幼儿园儿童和中小学生的蛲虫总阳性率为52.50％,农村小学生的蛔虫感染率为78.07％。中学生蛔虫感染率60.0％。市区先后两次蛲虫感染情况调查时间相隔16年,感染率未见明显差别,似说明此虫感染率如不采取防治措施并不随生活水平提高而自然下降。蛔虫感染则不同,14年后调查一郊县农村小学,学生蛔虫感染率明显降低。市区某校小学生蛔虫感染率20.83％。城乡儿童蛲虫感染率差别不明显,年龄以4—15岁感染率较高,男女两性感染率无显著差异。农村学生蛔虫感染有随年龄增加而感染率下降的趋势,女中学生较男中学生感染率高。几次调查只发现鞭虫感染两例。用药驱蛔,该市农村小学生排虫者多数每人排虫1—5条,平均每人排虫7.4条。肛拭前受检者大便已否对蛲虫检查结果似无重大影响。

SURVEY OF INTESTINAL NEMATODE INFECTION IN KINDERGARTEN AND SCHOOL CHIDREN IN HARBIN

This paper reports the results of several surveys on intestinal nematode infection in Kindergarten and school chidren in Harbin from 1964 to 1980. We had surveyed by using adhesive cellophane swab, and found that the E. vermicularisinfection rate of kindergarten chidren and primary and middle school students investigated was 52.50%. The infection rate of A. lumbricoides of primary school pupils surveyed in the rural area in Harbin was 78.07%, The infection rate of students of a middle school was 60.0%. The L. vermicularis infeetion rate obtained by another survey after 16 years was not found to be prominontly different. It would seem that the infection rate does not decrease spontaneously with the growing economics, unless appropriate preventive measures are applied. In another survey after 14 years, we found the infection of A. Iumbricoides of pupils in a primary school in the rural area was 22.12%. It was lower prominontly than that gained in previous survey. The difference of the rate of pinworm between chidren in the urban and in the suburb of Harbin was not remakable. The rate of E. vermicularis in 4-15 age group was higher than others and there is a similar positive rate with the both sex. The infection rate of roundworm decreased gradually with age, the rate in female students were higher than in male students. Only two puppils with T. trichiura infection were found. Administed Piperajine citrate in order to remove roundworm, the most of pupils had removed the worms, in primary school in rural each pupil had eliminited 1-5 roundworm , the average number of the worms eliminited was 7.4.per person. The results of investigation, whether the person in surveyed after passing stool or not, has no great difference.