为了解我市中小学生肠道蠕虫感染状况与分布，为今后防治工作提供科学依据。我［l］于1994一1996年组织专业人员采用改良加藤法调查中小学校20所（小学13所，中学7所）共计7070人，结果共检出蠕虫卵1223人，总感染率为173％。各虫种感染率（见附表）。1994～1996年感染率分别为 In order to understand the status and distribution of intestinal worm infection in primary and secondary schools in our city, provide a scientific basis for prevention and control work in the future. In 1994-1996, I [l] organized a survey of 2070 primary and secondary schools (13 primary schools and 7 secondary schools) with a total of 7,070 staff by organizing professionals in 1994-1996. As a result, 1223 worm eggs were detected, with a total infection rate of 173%. The worm infection rate (see schedule). Infection rates from 1994 to 1996 were respectively