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Chronic fatigue syndrome (CFS) is a poorly understood condition that develops mainly in adults between the ages of 20 and 40. Its main symptoms include:
In the past it was believed that chronic fatigue syndrome was caused by long-term infection with the Epstein-Barr virus (EBV). But research has shown that chronic fatigue syndrome and EBV infection are two different illnesses and EBV does not cause chronic fatigue syndrome.
For more information, see the topic Chronic Fatigue Syndrome.
| By: | Healthwise Staff | Last Revised: September 29, 2009 |
| Medical Review: | Michael J. Sexton, MD - Pediatrics W. David Colby IV, MSc, MD, FRCPC - Infectious Disease | |
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