HLA-DQB1 and chronic hepatitis B virus infection: Furthermore, Wang et al. (2017) identified two Alu indels Alu-5072 and Alu-5075 in the class II region as potential enhancers for HLA-DRB5, and HLA-DQB1-AS1 associated with phenotypes of lymphoma, Hodgkin lymphoma and chronic hepatitis B infection, respectively (Wang et al., 2017).