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定远县属皖东丘陵地区。全县六个区,55个乡(镇),总人口73万,农民占90％。为了解我县农民肠道寄生虫感染情况,我们于1989年4～5月,在青山、练铺、观寺3个乡进行了人体肠道寄生虫感染的调查。这3个乡位于我县西、南和东北方向,距县城均有22公里。地形有平原、丘陵和山岗。经济条件好、中、差,有代表性。调查方法按全国人体寄生虫调查规定的方法进行检查。 1.选点方法:每乡选一个行政村,以村或自然庄为单位,作整群抽样。调查人数占应检
Dingyuan County is a hilly area in eastern Anhui. The county six districts, 55 townships (towns), the total population of 730,000, farmers accounted for 90%. In order to understand the situation of intestinal parasitic infections in our county peasants, we conducted a survey of human intestinal parasitic infections in April, May to May, 1989 in three townships including Qingshan, Lianpu and Guan Temple. These three townships are located in the west, south and northeast of our county, 22 kilometers away from the county seat. The terrain has plains, hills and hills. Economic conditions are good, medium and poor, representative. Survey method according to the national human parasite survey method for inspection. 1. Selection Method: Each village elects an administrative village, village or natural village as a unit, for cluster sampling. The number of investigators should be seized