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为了探讨化疗降低人畜血吸虫病感染率及易感地带感染性效果，自1987年来，我们在洞庭湖区选择30个村作为试点，自进行了8年的纵向观察，现将结果报告如下。1内容与方法1.1病原调查每年对3～65岁居民进行孵化法加Kato—katz法粪检，以粪检阳性率作为血吸虫病感染率，并同时作IHA
In order to investigate the effect of chemotherapy on reducing the infection rate of schistosomiasis in humans and animals and the susceptibility of zoonotic infection, we selected 30 villages in the Dongting Lake area since 1987 as a pilot and conducted a longitudinal survey of 8 years since. The results are reported as follows. 1 content and methods 1.1 pathogen survey annual 3 to 65-year-old residents hatching method plus Kato-katz method fecal examination, the fecal positive rate as the infection rate of schistosomiasis, and at the same time as IHA