解放以来,由于贯彻了预防为主的方针,伤寒病的发病率已大幅度下降。据国内历年资料分析,伤寒患者在近10余年来多趋向于轻症化和不典型。这就给伤寒患者的及时诊治带来了困难,因此要求临床医师对该疾病应有一定的警惕性。从近年来的资料表明,我国有些地区发病率有上升趋势,局部地区呈现暴发 Since the liberation, the implementation of the principle of prevention has led to a drastic drop in the incidence of typhoid fever. According to domestic data analysis over the years, typhoid fever patients in the past 10 years and more tend to be mild and atypical. This has brought difficulties to the timely diagnosis and treatment of typhoid fever patients, and therefore requires that clinicians should have some vigilance on the disease. Data from recent years show that the incidence of some areas in our country has been on the rise and some areas have been experiencing outbreaks