CD79A and nasopharyngeal carcinoma: Viral gene product protein that are detected on the NPC tissue of the majority of sufferers are LMP1 (Latent membrane protein 1), LMP2 (latent membrane protein 2), EBNA 1-6 (Epstein-Barr Nuclear Antigen 1-6), it was also found an increase of immunoglobulin A antibody titers (IgA) viral proteins (viral capsid antigen/VCA and early-antigen/EA) (IgA (VCA-p18 + EBNA-1).