Mononucleosis

• Mononucleosis Overview
• Mononucleosis Causes
• Mononucleosis Symptoms
• When to Seek Medical Care
• Exams and Tests
• Mononucleosis Treatment
• Self-Care at Home
• Medical Treatment
• Next Steps
• Follow-up
• Prevention
• Outlook
• For More Information
• Web Links
• Synonyms and Keywords
• Authors and Editors
• Related mononucleosis articles:
  Mononucleosis - on WebMD
  Mononucleosis - on MedicineNet

Mononucleosis Overview

Infectious mononucleosis (often called "mono") is a common viral infection that causes fever, sore throat, and enlarged lymph nodes. The most common complaint is a sore throat. Mono is most commonly caused by the Epstein-Barr virus (EBV). Mono is most frequently diagnosed in teenagers and young adults.

The illness generally goes away without medical help. However, it may last from weeks to months. Treatment is mainly to ease symptoms, usually at home, with plenty of rest and fluids.

By adulthood, 90%-95% of men and women have been infected with EBV. Mono most often occurs in people 5-25 years of age and is highly contagious. Not surprisingly, 1%-3% of college students contract mono each year. Infection spreads through exposure to body fluids containing the virus. It is most often transmitted via saliva (hence the name "kissing disease"). However, mono can also be spread through blood and genital secretions.

Serious complications rarely occur.