本文回顾性调查伤寒446例和斑疹伤寒350例,据这两种疾病15种指标出现频率导出伤寒与斑疹伤寒计量鉴别诊断表(见附表)。又另外采用具有确切血清学(肥达氏反应和外裴氏反应)诊断的伤寒70例和斑疹伤寒64例,利用附表,逐一进行回顾性计量诊断,其结果总分值在5以上可诊断伤寒;总分0以下可诊断斑疹伤寒,5—0之间为不确诊。本计量法伤寒诊断正确率90.9％;斑疹伤寒正 In this paper, 446 cases of typhoid and 350 cases of typhus were retrospectively reviewed. According to the frequency of occurrence of 15 indicators of these two diseases, the differential diagnosis table of typhoid fever and typhus was derived (see attached table). In addition, 70 cases of typhoid fever and 64 cases of typhus were diagnosed with definite serological (Wadalone’s reaction and Outer Pei’s reaction). According to the table, retrospective diagnosis was carried out one by one, and the total score was above 5 Diagnosis typhoid; total score below 0 can be diagnosed typhus, between 5-0 is not confirmed. The measurement method of typhoid diagnosis 90.9% correct; typhus is positive