Verify the relationship between TNF-ÿ rs1800629 cytokine polymorphisms; IFN-ÿ rs2430561; TGF-ÿ rs1982073 and rs1800471; IL-6 rs180079 and IL-10 rs1800896, rs1800871 and rs1800872 leprosy. The gene discussed is IL6; the disease is leprosy.