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１９８８～１９９２年我们在四川省中江、乐至、安岳三县农村的４所中、小学校，以水洗沉淀—醛醚法一粪二检，对１５４５名中、小学生进行肠道蠕虫调查。共查见肠道蠕虫感染者１４０７例，感染率为９１－１％，感染虫种共４种，其中吸虫１种、线虫３种。感染率：华支睾吸虫为
From 1988 to 1992, we investigated the intestinal worms of 1545 middle and primary school students in four primary and secondary schools in the rural areas of Zhongjiang, Lezhi and Anyue counties of Sichuan Province. A total of 1407 cases of intestinal worm infection were found, the infection rate was 91-1%, a total of 4 species of infected worms, including 1 species of trematodes, 3 nematodes. Infection rate: Clonorchis sinensis is