Epstein-Barr Virus Infections

The cause is infection with Epstein-Barr virus, which is transmitted mainly through saliva. It can also rarely spread through semen or blood, including via organ transplantation and blood transfusion. The virus first infects epithelial cells of the oropharynx and then B cells, which serve as the major reservoir.

After transmission, EBV infects epithelial cells and then B cells, establishing persistent infection in the host. The host immune response includes antibodies and cellular defenses such as pattern recognition receptors, natural killer cells, and CD8+ and CD4+ T cells, while the virus uses immune-evasion strategies to persist. EBV infection and reactivation are also associated with lymphoproliferation and malignancy development in susceptible settings.

Adolescent infection is associated with infectious mononucleosis. Exposure through saliva is the main route of transmission, and infection can also occur through blood or organ transplantation. The literature also indicates that EBV infection is nearly universal over the human lifespan, with most people infected at some point.

The supplied grounding does not describe a standard treatment for Epstein-Barr virus infection itself. It does indicate interest in prevention and control, and in clinical progress of mRNA vaccines and immunotherapies, but does not provide enough detail to define a standard-of-care modality or drug class. Accordingly, no specific treatment category can be stated from the provided material.