The epidemiology of post viral fatigue syndrome.

The epidemiology of the post viral fatigue syndrome was studied for the years 1985-86. With a strict definition of the syndrome, it was found that there were many misconceptions about this illness. The sex incidence was nearly equal with a similar pattern of twin peaks at 25-29 years and 40-45 years. At diagnosis, 56% were ill for three to six months and only 9% for more than two years. It is estimated that this syndrome is more common than infectious mononucleosis.