一,前言钩端螺旋休病(简称钩体病)是一种常见的自然疫源性疾病。世界各国均有报告。我国各地在夏秋农忙季节,南方诸省常有发生。特别是城镇易感人群(大批支农人员),进入疫区之后,更容易发病,甚至引起爆发流行。在中发(70) 2号、31号、49号文件的指引下,我国钩体病的调查研究和防治工作,已取得了显著的进展。在以往文献中,多认为流速不大的各种地面水(如稻田、溪沟、荒泽、堰塘、游泳池等)受污染后,在本病传播中起重要作用。近来,又有些文献指出,即使流速较大的江河水,也同样可以感染本病。长江水能否感染钩体病?尚未见有报导!本文就长江水(重庆段)游泳者,发生一例钩体病,予以报导,仅供参考! I. Introduction Leptospirosis (referred to as leptospirosis) is a common natural foci of disease. All countries in the world have reported. Throughout the busy summer and fall seasons in various parts of China, the southern provinces often occur. In particular, the susceptible population in cities and towns (large numbers of supportive farmers) enter the epidemic area and are more prone to the disease and even cause the epidemic. Under the guidance of documents (2), No. 31 and No. 49 (Zhongfa (70)), significant progress has been made in the investigation and prevention and control of leptospirosis in our country. In the past, many groundwater (such as paddy fields, creek ditch, wasteland, weirs, swimming pools, etc.) that are not considered to be of much flow rate are considered to play an important role in the transmission of this disease. Recently, some articles have pointed out that even river water with a large flow rate can equally infect the disease. Yangtze River water can be infected with leptospirosis? Has not been reported! This article on the Yangtze River (Chongqing section) swimmer, an example of leptospirosis, to be reported for reference purposes only!