KLRC2 and Epstein-Barr virus infection: In contrast to EBV infection, other herpesviruses either do not change the NK cell composition, such as recurrent α-herpesvirus infection by herpes simplex virus 2 (HSV2) (54), or expand terminally differentiated NKG2C+KIR+CD16+ NK cells, such as the β-herpesvirus HCMV (55–57) or the γ-herpesvirus Kaposi sarcoma-associated herpesvirus (KSHV) in HIV-infected individuals (58).