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1987年,我们对蕲春县银山乡包林湾进行了该病的流行病学调查,结果如下。 调查方法 一、人群调查 对该湾2岁以上的人群作皮试初筛,阳性者以直接涂片法和水洗氢氧化钠消化法粪检,虫卵阳性者以改良stoll法计数虫卵。 二、中间宿主和保虫宿主 对该湾鱼塘内的螺类和鱼虾以压片法分别镜检尾蚴和囊蚴,阳性鱼种以人工消化法检查感染度。 在该湾收集各类畜粪,以直接涂片法和清水沉淀法查虫卵,捕家鼠解剖其肝胆查找成虫。
In 1987, we conducted an epidemiological investigation of the disease in Baoling Bay, Yinshan Township, Hunchun County. The results are as follows. Survey methods First, the crowd survey of people over the age of 2 in the Bay for skin test screening, positive smear method and washed with sodium hydroxide digestion fecal semen, egg-positive stool method to count eggs. Second, the host and the host of the host and the security of the bay fish pond snails and fish and shrimp to tablet method were screened for cercariae and metacercariae, the positive species to check the degree of infection by artificial digestion. In the Bay collection of various kinds of livestock manure, direct smear method and water precipitation method to check the eggs, catching rats to dissect their hepatobiliary search for adults.