KIR3DL1 and classic Hodgkin lymphoma: Jang et al. showed that individuals carrying KIR haplotype B, especially genes KIR2DL2–HLA-C1 and KIR2DS2–HLA-C1, had significantly lower frequencies among EBV+ cHL patients compared to healthy controls, suggesting a protective role of KIR haplotype B against this disease [253].