钩体病的血清流行病学调查,均采用显微镜凝集(MA)试验法。此试验法必须保存一套活的致病性钩体作为抗原,在基层单位使用时受到一定的限制。而钩体被动血凝(HA)试验操作简便,报告迅速,不仅可用于临床辅助诊断,还可作为钩体病流行过后的病因追溯调查和暴发时的疫情调查。现初步分析如下。 Serosal epidemiology of leptospirosis were examined by microscopic agglutination (MA). This test method must save a set of live pathogenic hooks as antigen, subject to certain restrictions in the use of grass-roots units. The hook body passive coagulation (HA) test is simple, rapid reporting, not only for clinical diagnosis, but also as a leptospirosis after etiological retrospective investigation and epidemic outbreak investigation. The preliminary analysis is as follows.