The univariate analysis showed that the genotypes of rs7568402 locus located in PD-1 gene were associated with susceptibility to TB (χ2 = 12.037, P < 0.05), while no statistically significant differences were observed in the genotypes of rs2227982 and rs36084323 locus between the TB patients group and the controls group (P > 0.05). This evidence concerns the gene PDCD1 and tuberculosis.