Oligoarticular JIA is associated with A2, DRB1*11, DRB1*08, DPB1*02, DRB1*13, DRB1*15*01 and DRB1*01, while for RF- polyarticular the most commonly associated genes are DPB1:03 and DRB1:08, and for RF+ JIA, DRB1*04 and DRB1*01 [23]. Here, HLA-DPB1 is linked to juvenile idiopathic arthritis.