IFNA1 and tuberculosis: In addition, compared with the LTBI, QFT-Plus positive TB patients were found to have higher concentrations of IFN-ɣ released in both TB1 (3.33 IU/ml to 1.06 IU/ml; Mann-Whitney U, p = 0.02) and TB2 tube (2.89 IU/ml to 1.19 IU/ml; Mann-Whitney U, p = 0.017).