Infectious Mononucleosis

Infectious mononucleosis, often called mono or glandular fever, is an infection most commonly caused by the Epstein-Barr virus. Most people are first infected as children, when the illness produces few or no symptoms, but infection in young adults more often leads to fever, sore throat, swollen lymph nodes in the neck, and fatigue. Most people recover within two to four weeks, though fatigue can sometimes persist longer.