CD8A and cytomegalovirus infection: Since we have revealed a certain coordination in the development of NKG2C+ T cells and adaptive NKG2C+ NK cell subsets, associated with cytomegalovirus infection, we made an attempt to evaluate the HCMV-specific response of highly differentiated CD8+NKG2C+ T cells using a set of peptides from one of the most immunogenic HCMV proteins pp65 (25).