为了解大理白族在校中小学生肠道蠕虫感染情况,1991年3-4月,用改良加藤法、直接涂片法和盐水漂浮法检查了大理和剑川六所中小学校白族学生1768人。结果显示:感染四种肠道蠕虫者为60.3％(1066/1768),其中蛔虫55.8％,鞭虫8.9％和猪肉绦虫4.9％,钩虫感染仅1例。蛔、鞭混合感染91人(5.1％)以及蛔、鞭、绦混合感染13人(0.7％)。不同 In order to understand the intestinal worm infection among primary and secondary school students in Dali Bai nationality from March to April 1991, 1768 white students of primary and secondary schools in Dali and Jianchuan were inspected with modified Kato method, direct smear method and saline floating method. The results showed that 60.3% (1066/1768) were infected with four kinds of intestinal worms, including 55.8% of roundworms, 8.9% of whipworms and 4.9% of tapeworms, and only 1 case of hookworm infections. 91 (5.1%) were mixed with roundworm, whip and whip, and 13 (0.7%) were mixed with whip and sash. different