This interpretation is supported by the recent finding of expansion of long-lived effector CD45RA+ CD8 T cells that are IL-7Rlo KLRG1high in latent CMV and EBV infection, a population which phenotypically overlaps with the FcγRIIIA+ CD8 T cell identified in this study (65). Here, FCGR3A is linked to Epstein-Barr virus infection.