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1991年4月份于和县血吸虫病流行区首次发现人体感染貌小棘降吸虫t‘1，入群感染率为12．98％，几岁以下人群感染率约22％。同时当地其它寄生虫尤其肠道线虫感染普遍。为探究范小林队吸虫感染可能因素及与其它寄生虫关系，观察人群防治效果，我们于试区内进行了从ig91—1995共五
In April 1991, the epidemic area of schistosomiasis in Yuhe county was the first to find human infection with T. dendrolimi t’1. The infection rate was 12.98%. The infection rate was about 22% in the under-aged population. At the same time, other local parasites, especially intestinal nematode infections are common. In order to explore the possible factors of Fan Xiaolin’s flu infection and the relationship with other parasites, and to observe the effect of crowd control, we conducted a total of five trials in ig91-1995