HLA-DRB1 and leprosy: For HLA class II (HLA-DR and DQ), the most consistent findings are that HLA-DR2 (subtypes HLA-DRB1*15 and HLA-DRB1*16) and HLA-DQ1 (subtypes HLA-DQB1*05 and HLA-DQB1*06) are associated with the TT and LL clinical forms, respectively [19-27], and are also associated with leprosy per se [28-34].