ＷＨＯ指出全世界现有结核病人 2 0 0 0万 ,每年新发生约90 0万例 ,每年死亡 30 0万人 ,全世界业已受结核分支杆菌感染者达 17亿 ,占世界人口的 1/ 3,结核病在世界很多地区已经失控而威胁人的生命。结核再次成为严重的世界性疾病。由于人口剧增、移民增加、旅游业发展、耐药性 The WHO pointed out that there are 20 million TB patients in the world, about 9.0 million new cases occur each year, and 30 million people die each year. 1.7 billion people are infected by Mycobacterium tuberculosis in the world, accounting for one-third of the world’s population Tuberculosis is out of control in many parts of the world and threatens human life. Tuberculosis once again become a serious worldwide disease. Due to the rapid population growth, immigration increased, tourism development and resistance