Of interest EVI5, which is associated with lymphoma development [13], appeared to be associated with event severity and recovery, but the direction of the association differed depending on a person's HLA-DRB1 status; those who were negative for HLA-DRB1 had events characterized by less severity, while those who were positive for HLA-DRB1 had events of greater severity or worse recovery. Here, HLA-DRB1 is linked to lymphoma.