HLA-DRB1 and infection: Twenty-seven associations were found regarding infection events; 16 related to the event (GP/EO) (e.g. DRB1*01:02:01G-DQB1*03:03:02G) whilst 11 associations did not (LO) (e.g. DRB1*12:01:01G-DQB1*03:02:01G).