钩端螺旋体(钩体)病在我国分布广泛、流行严重,自1955年被列入法定传染病以来,全国累计病例240多万人,死亡病例超过2万人。钩体病属自然疫源性疾病,为了有效控制钩体病流行,必须加强对钩体病传染源带菌情况进行监测。野鼠是钩体病最重要的传染源,其次是猪、犬、牛等。目前,监测 Leptospira (Leptospira) disease is widespread in our country and has a serious epidemic. Since it was included in the legal infectious disease in 1955, there are more than 2.4 million cases nationwide and more than 20,000 deaths. Leptospirosis is a natural foci disease, in order to effectively control the prevalence of leptospirosis, leptospirosis must be strengthened to carry out surveillance of the source of infection. Vole is the most important source of infection of leptospirosis, followed by pigs, dogs, cattle and so on. Currently, monitoring