HLA-B and myeloid sarcoma: Results showed that a significantly higher EBV viral load could be detected in MS subjects carrying the HLA-B*07 allele (non-protective allele) (HLA-B*07+) (N = 47/117) (37.54; 2.0–74.25 copies/μg) compared to those not carrying this allele (HLA-B*07−) (N = 70/117) (2.0; 2.0–2.0 copies/μg; p < 0.0001) (Fig. 2a).