Most people who have infectious mononucleosis, or mono, get it only once.
Rarely, however, mononucleosis symptoms may recur months or even years later. Most cases of mononucleosis are caused by infection with the Epstein-Barr virus (EBV).
Most people who have infectious mononucleosis, or mono, get it only once.
Rarely, however, mononucleosis symptoms may recur months or even years later. Most cases of mononucleosis are caused by infection with the Epstein-Barr virus (EBV).