CXCL9 and tuberculosis: Chemokines such as CXCL1 (AUC = 0.80, p < 0.0001), CXCL9 (AUC = 0.98, p < 0.0001) and CXCL10 (AUC = 0.98, p < 0.0001) discriminate DR-TB from LTB.