TGFB1 and leprosy: We performed an association study for IL2RA and TGFB! genes with clinical forms of leprosy based on two case–control samples. These scenes encode molecules important for the immunosuppressive activity of Trea cells and present differential expressions according to the clinical forms of leprosy. Furthermore. IL2RA is a positional candidate gene because it is located close to the region of chromosome 10o13. presenting a link to PB leprosy