How long can glandular fever last?

The majority of symptoms go away in three weeks, with the worst symptoms typically occurring one week after they start.

The first indications and symptoms of the infection may not show up for four to eight weeks following viral exposure. The incubation period for glandular fever is typically quite long, lasting approximately four to six weeks.

The main symptoms can appear gradually, though they can also appear suddenly. One to two weeks of fatigue, feeling sick, and body aches may come before the main symptoms.

The majority of the symptoms go away in two to four weeks, though the fatigue may linger for several weeks or months and make the person feel depressed or hopeless.

The typical duration of glandular fever, also called infectious mononucleosis, is two to four weeks. However, some people may have symptoms for several months.