Mononucleosis (patient information)
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What is Mononucleosis?
Infectious mononucleosis (IM) is a very prevalent viral infection caused by the Epstein-Barr virus, a herpes virus. 90% of adults have been exposed to the mononucleosis, many as little children, when no symptoms or flu-like symptoms are exhibited. In underdeveloped countries, almost everyone is exposed at a very young age, so mononucleosis exists mostly in developed countries.
What are the symptoms of Mononucleosis?
The main symptoms of infectious mononucleosis are:
- sore throat (more common in children)
- fever
- fatigue
- weight loss
- malaise, general discomfort
- enlarged lymph nodes (more common in children)
- enlarged spleen
- enlarged liver (more common in adults)
- jaundice (more common in adults)
Some rarer and more serious symptoms are:
- lower levels of platelets and blood cells
- rupture or hemorrhage of the spleen
- airway obstruction
- pneumonitis
Cases are almost never fatal.
What to do if you think you have Mononucleosis
How is Mononucleosis spread?
Who is at risk for Mononucleosis?
How to know you have Mononucleosis (Diagnosis)?
Vaccine
Diseases with similar symptoms
Where to find medical care for Hepatitis A
Directions to Hospitals Treating Hepatitis A