1986年7月中旬,广东省梅县市受7号强台风袭击,百年未遇的特大洪水冲破梅江河堤,两岸房屋农田受淹严重。洪水后,发生钩端螺旋体病(简称钩体病)的流行,共发病66例,死亡2例。在广东省流研所和地、市有关单位协助下,采取了有力的防治措施,并对流行情况作了调查,现将结果报告如下。一、流行情况 In mid-July 1986, Meixian City, Guangdong Province, was hit by a typhoon no. 7. A huge flood hit a hundred years ago broke through the Meijian River embankment and farmland across the Strait was severely flooded. After the flood, the occurrence of leptospirosis (leptospirosis) prevalence, a total of 66 cases of death, 2 patients died. With the help of the Institute of Flow Research and the assistance of relevant agencies in Guangdong and Guangdong Provinces, effective prevention and control measures have been taken and the prevalence has been investigated. The results are reported as follows. First, the prevalence