CXCL9 and tuberculosis: Further, DR-TB patients exhibited significantly increased levels of CC chemokines CCL1 (p < 0.0001), CCL2 (p = 0.0012), CCL3 (p < 0.0001), CXC chemokines CXCL1 (p < 0.0001), CXCL9 (p < 0.0001) and CXCL10 (p < 0.0001) in comparison to LTB individuals.