抗结核有效药物的临床应用和化疗方案的正确实施可使95%以上的肺结核新病人获得痊愈,停药后五年复发率小于5%。但由于种种原因的影响,这一目标远远没有达到,2000年全国第四次结核病学抽样调查资料表明,我国肺结核的复治率高达34.4%[1]。这些复治患者中的大多数最终都将发展成为 The clinical application of effective anti-TB drugs and the correct implementation of chemotherapy regimens can recover more than 95% of new TB patients. The five-year relapse rate after drug withdrawal is less than 5%. However, due to various reasons, this goal is far from reaching. In 2000, the data of the fourth national sample survey on tuberculosis showed that the rate of rehabilitation of tuberculosis in China reached 34.4% [1]. Most of these retreatment patients will eventually develop into