Recent studies have indicated that Fc gamma receptor 1B (FCGR1B) [14], combined with expression patterns of FCGR1A (CD64), RAB33A and LTF (lactoferrin) [12] and CD3E, CD8A, IL7R, BLR1, CD19, FCGR1A, CXCL10, CD4, TNF, BCL2, MMP9, Foxp3, CASP8, CCL4, TNRFSF1A, CASP8, Bcl2 and TNF [15] showed clear discriminatory power between TB and latent TB infection (LTBI). The gene discussed is FCGR1A; the disease is tuberculosis.