Non-significant differences were found among IL-17A (rs2275913A/G) genotypes regarding personal and clinical data of leprosy patients except grade of disability and SSS as a higher percentage of grade 2 disability and positive SSS were associated significantly with IL-17A (rs2275913A/G) GG genotype than AG and GG genotypes (p = 0.030 and 0.005; respectively) (Fig. 3). This evidence concerns the gene IL17A and leprosy.