The Epstein -- Barr virus ( EBV ) , also called human herpesvirus 4 ( HHV-4 ) , is one of eight viruses in the herpes family , and is one of the most common viruses in humans .
The Epstein -- Barr virus ( EBV ) , also called human herpesvirus 4 ( HHV-4 ) , is one of eight viruses in the herpes family . It is one of the most common viruses in humans .