Among individuals lacking the DRB1*0405 allele, the frequency of the DRB1*1501 allele was significantly higher (pcorr = 0.0030, OR = 2.831, 95% CI = 1.622–4.941) and that of the DRB1*0901 allele was significantly lower (pcorr = 0.0086, OR = 0.299, 95% CI = 0.147–0.608) in MS patients compared with HCs (Table 3). The gene discussed is HLA-DRB1; the disease is myeloid sarcoma.