HLA-B and hemorrhagic fever with renal syndrome: As shown in Table 4, neither the HLA A-B haplotypes nor the three loci haplotypes exhibited differences between patients and controls, whereas the two loci haplotypes HLA-B*46-DRB1*09 (P = 0.040; OR = 2.16; 95% CI: 1.02–4.55) and HLA-B*51-DRB1*09 (P = 0.037; OR = 3.62; 95% CI: 1.00–13.18) were more commonly shown in HFRS patients than controls.