CD8A and Epstein-Barr virus infection: We have also recently detected unique, functionally IAV-M1/EBV-BM cross-reactive oligoclonal CD8 TCR repertoires in five rare individuals who remain EBV seronegative (MA-EBV-SN) into their 4th decade of life, suggesting that cross-reactive CD8 T cells may protect from EBV infection (5).