钩端螺旋体病（钩体病）是人兽共患的最常见病之一，在世界各大洲均有发生或流行，东南亚地区的流行较为严重。在我国广泛分布和流行，５０～８０年代南北方均有较大规模的流行，随着我国科学技术的发展，钩体病的防治工作逐步深入，其发病率大大下降，但近几年来，钩体病在各 Leptospirosis (leptospirosis) is one of the most common zoonotic diseases and occurs or prevalent in all continents of the world, with pandemic prevalence in Southeast Asia. In our country widely distributed and epidemic, 50 to 80 years both north and south have a larger scale epidemic, with the development of science and technology in our country, leptospirosis prevention and treatment work is gradually deepened, the incidence rate dropped significantly, but in recent years, the hook Sickness in each