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Chronic Fatigue Syndrome Health Center

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Mononucleosis and Chronic Fatigue Syndrome

Chronic fatigue syndrome (CFS) is a poorly understood condition that develops mainly in adults ages 20 to 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 that EBV does not cause chronic fatigue syndrome.

For more information, see the topic Chronic Fatigue Syndrome.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerW. David Colby IV, MSc, MD, FRCPC - Infectious Disease
Last RevisedJuly 28, 2011

WebMD Medical Reference from Healthwise

Last Updated: July 28, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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