CCL5 and tuberculosis: The pooled OR from overall studies indicated no significant association between CCL5 -28 C>G polymorphism and TB risk in allelic (G vs. C: p = 0.257; OR = 1.809, 95% CI = 0.649 to 5.043), heterozygous (CG vs. CC: p = 0.443; OR = 1.440, 95% CI = 0.567 to 3.658) and homozygous (GG vs. CC: p = 0.160; OR = 5.140, 95% CI = 0.524 to 50.404) comparisons (Figure 1 and Figure 2).