IL17A and tuberculosis: The frequency of the A allele was significantly (p < 0.001) higher in the resistant group (32.5%) than in the susceptible group (13.8%) which suggests that individuals with the A alleles at IL-17 − 197 G > A (rs2275913) SNP are at higher risk to get DR-TB three times than individuals having the G allele (OR 3.02).