Infectious Mononucleosis - Description
Anyone can have infectious mononucleosis. However, the disease is most common in young adults between the ages of fifteen and thirty-five. It is especially common among teenagers. The rate of mononucleosis among college students has been estimated at 15 percent. The disease is often not recognized when it occurs in young children.
- Herpes viruses:
- A group of viruses that cause cold sores, chickenpox, shingles, and other diseases.
- Reye's syndrome:
- A very serious, rare disease, most common in children, believed to be caused by aspirin.
In people who are otherwise healthy, mononucleosis usually lasts about four to six weeks. In people with weakened immune systems, the disease may last much longer. AIDS patients (see AIDS entry) and people who have had organ transplants often have weakened immune systems. In such cases, serious complications may develop after a bout of mononucleosis.

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