1991年7月,我市遭受了历史上罕见的特大洪灾。洪灾之后,如何分析疫情动态,把握疫情发展趋势,对于制定救灾防病策略具有重要的指导意义。由于我市地处皖南山区边陲,钩体病流行菌群主要为黄疸出血群,临床症状重,极易引起死亡,对人民群众的身体健康威胁很大,历来被卫生部门列为防治重点。因此,在整个救灾防病中我们自始至终狠抓钩体病综合防治,层层落实防制措施。1991年1～11月份全市钩体病发病率与1990年同期相比不仅没有上升,而且还 July 1991, the city suffered a rare catastrophic floods in history. After the flood, how to analyze the epidemic situation and grasp the trend of the epidemic has an important guiding significance for formulating disaster prevention and disease prevention strategies. As the city is located in the southern border of Wannan Mountain, the prevalence of leptospirosis is mainly jaundice bleeding group, clinical symptoms, can easily cause death, a great threat to the health of the people, has always been the health sector as a priority. Therefore, throughout the disaster prevention and disease prevention we pay close attention to the comprehensive prevention and treatment of leptospirosis, and implement prevention and control measures at various levels. From January to November 1991, the prevalence of leptospirosis in the whole city not only did not rise compared with the same period of 1990, but also