诊断潜在的结核杆菌感染常用结核菌素皮肤试验(TST),此方法有许多不足,最主要的一点是特异性较差。由于以前接种过牛结核分枝杆菌疫苗或暴露于环境中的分枝杆菌,致使出现假阳性结果。此外,TST在实际操作中也有几点不足,如:试验者需要回访;所在地操作上的差异及对结果判断的准确率等。因此,目前急需一种更为快速、准确的检测潜 Diagnosis of potential Mycobacterium tuberculosis infection commonly used tuberculin skin test (TST), this method has many deficiencies, the most important point is the specificity is poor. False-positive results due to Mycobacterium bovis vaccination or Mycobacterium exposure to the environment. In addition, there are some shortcomings in the actual operation of the TST, such as: the test taker needs to visit; differences in the operation of the location and the accuracy of the results to judge. Therefore, there is an urgent need for a more rapid and accurate detection potential