结核是危害人体健康与人口生命的一大疾病，成人继发性结核来源于儿童时期原发感染灶内的结核杆菌的复燃，而婴儿期对结核杆菌的感染情况如何？为此，我们对加格达奇区迟种卡介苗的儿童进行了结核菌素试验，现将结果报告如下。1调查对象与方法调查对象：为1994－01－1998－12在 Tuberculosis is a major disease that endangers human health and the life of the population. Adult secondary tuberculosis is caused by the resurgence of Mycobacterium tuberculosis in the primary infection zone in childhood. What is the infection rate of Mycobacterium tuberculosis in infancy? For this reason, we conducted a tuberculin test on children who were late BCG vaccinated in the Jiagedaqi area and the results are reported below. A survey of subjects and methods of the survey: for 1994-01-1998-12 in