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1988年6月～1989年7月,对北安市五个点按《全国人体寄生虫分布调查实施细则》,进行肠道寄生虫感染情况调查。五个点人口2739人,实查2613人,受检率
From June 1988 to July 1989, a survey of the implementation details of the survey on the distribution of human parasites in the whole country was carried out on the five spots in Bei’an City to investigate the intestinal parasitic infections. 2739 people in five points, the actual investigation of 2613 people, the test rate