TLR4 and tuberculosis: Regarding relapses, we did not observe a significantly different distribution between primary TB patients and relapse cases regarding TLR4-A299G (OR = 0.80 (0.49–1.32), p = 0.381) or TLR4-C399T (OR = 1.36 (0.81–2.28), p = 0.245, Table 2).