When CXCL9 and CXCL10 assays were combined into a single assay, the TB detection accuracy of the resulting combined assay was equal to that of the CXCL9 assay, thus indicating that inclusion of CXCL10 levels in the analysis did not increase the diagnostic accuracy of the CXCL9 assay (Figure 6B). Here, CXCL9 is linked to tuberculosis.