岳阳市广兴区于1991年7～8月首次发生一起钩端螺旋体病(钩体病)暴发流行。现将流行病学调查结果报告如下。 一、材料与方法 (一)资料收集:到疫区察看访问,收集住院患者病历资料。 (二)血清学检测:临床拟诊、确诊的病人血标本用中国药品生物制品检定所所产13群15型标准血清,抗原采用湖南常见的黄疸、流感伤寒、澳洲、七日热等12型标准株,显凝试验血清抗体滴度≥1:320为阳 Guangxing District, Yueyang City, in July 1991 for the first time in 2011 with a leptospirosis (leptospirosis) outbreak. Epidemiological findings are reported below. First, the material and methods (A) data collection: visit to the epidemic area visits, collecting patient records of patients. (B) serological test: clinically diagnosed, diagnosed patients with blood samples produced by the China Pharmaceutical and Biological Products 13 Group 15 standard serum antigens used in Hunan jaundice, influenza typhoid fever, Australia, seven heat 12 Standard strain, coagulation test serum antibody titer ≥ 1: 320 for the sun