10 Mononucleosis Symptoms
Reviewed: Dr. Mera
Symptom #1: Fever
Fever is one of the initial symptoms of EBV infectious mononucleosis, but it is rarely the sole manifestation. It may reach 103-104°F but is usually less than 102°F. Persistent fever or reappearance after recovery should suggest an alternate diagnosis. The fever will usually peak in the afternoon or early evening. The fever can last for days to weeks depending on the ability of your immune system to fight against the infection. In the very young and the elderly, mono may manifest by fever and muscle pain only.
Before fever, you may get chills or rapid muscular contraction and relaxation. This is the way your body responds to changes in temperature to produce more heat.
