Epstein-Barr Virus (EBV): A virus in the herpes family that is best known as the cause of mononucleosis. Characterized by fatigue and general malaise. Infection is common and is normally temporary and minor. However, in some individuals, EBV can trigger chronic illness and it is a particular danger to people with compromised immune systems.
(“Epstein-Barr Virus.” Medterms.
N.p., n.d. Web. 05 August 2014.)