link for complete storyResearchers suggest that increased levels of immune antibodies that fight Epstein-Barr Virus (EBV), the virus that causes infectious mononucleosis and other disorders, may be associated with an increased risk of developing multiple sclerosis. Alberto Ascherio, MD, DrPH, and colleagues (Harvard School of Public Health, Walter Reed Army Institute of Research) originally reported their findings in the March 26, 2003 Journal of the American Medical Association. However, due to an error in the processing of the data, the authors have retracted the original article and published a revised report in the May 25, 2005 Journal of the American Medical Association. The revised report still found a relationship between EBV and risk of developing MS but that this relationship was age dependent.