KLRC2 and acute myeloid leukemia: For example, HSCT aimed at improving the prognosis of acute myeloid leukemia (AML), induced reactivation of CMV which then expanded a subset of donor derived NKG2C expressing NK cells as well as γδ-T cells of a particular phenotype (Vδ2−ve γδ-T cells) (Litjens et al., 2018).