For the samples from females, following feature selection using samples from all three countries (Tables S4d–S4f), ranking (Tables S5d–S5f), and evaluation of different combinations of genes (Figures S1d–S1f), the gene set with the top-ranked gene (GBP6) from the common and combined gene list identified active TB cases with a sensitivity of 0.87 and specificity of 0.74. The gene discussed is GBP6; the disease is tuberculosis.