The IL-4 and IL-10 blood concentrations in anergic tuberculosis patients [(91.0 ± 57.9) ng/L, (76.6 ± 44.8) ng/L] were significantly higher than in TST-positive tuberculosis patients [(60.1 ± 39.0) ng/L, (53.5 ± 18.9) ng/L] and in healthy controls [(50.4 ± 25.0) ng/L, (48.8 ± 12.6) ng/L] (q = 3.288, 3.646, P = 0.001, P = 0.000). The gene discussed is IL4; the disease is tuberculosis.