周口地区1972～1976年由于洪水造成钩体病两次流行,为此我们对有关宿主动物作了带菌调查,现将调查结果报告如下。调查内容和方法　(1)宿主动物:主要有猪、羊、犬、牲畜以及鼠、蛙等。(2)调查方法:对1975年钩体病流行后调查资料与1995年流调结果做比较分析。分别做猪、羊、犬肾 Zhoukou area from 1972 to 1976 due to flooding leptospirosis caused by the two epidemic, for which we conducted a host-related caries investigation, the findings are reported as follows. Survey content and methods (1) host animals: mainly pigs, sheep, dogs, livestock and rats, frogs and so on. (2) Method of investigation: a comparative analysis was made on the survey data after the prevalence of leptospirosis in 1975 and the results of flow adjustment in 1995. Respectively, pigs, sheep, canine kidney