1989年8月上旬,东阳市发生钩端螺旋体病大规模流行,至8月21日共上报钩端螺旋体病863例,同时又上报有流行性出血热141例。由于该市是出血热疫源地区域之一,故这次究竟是一种疾病流行?还是两种疾病同时流行?我们从8月13日开始,在现场对这些病例采用了一系列实验室手段,进行了血清学检测,结果确定了本次流行的疾病是钩端螺旋体病,排除了兼有出血热流行,从而为 In early August 1989, a large-scale epidemic of leptospirosis occurred in Dongyang City. A total of 863 cases of leptospirosis were reported to August 21, and 141 cases of epidemic hemorrhagic fever were reported at the same time. As the city is one of the endemic areas of the epidemic of hemorrhagic fever, is this a popular epidemic or are both endemic at the same time? We started a series of laboratory tests on these cases on the scene from August 13 , Conducted a serological test, the results identified the prevalence of the disease is leptospirosis, excluding both epidemic hemorrhagic fever, which is