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Scientists debate the role of a virus in multiple sclerosis

11 days ago   |   By Ars Technica

Enlarge (credit: CHRISTOPH BURGSTEDT/SCIENCE PHOTO LIBRARY )
Ryan Grant was in his 20s and serving in the military when he learned that the numbness and tingling in his hands and feet, as well as his unshakeable fatigue, were symptoms of multiple sclerosis. Like nearly a million other people with MS in the United States, Grant had been feeling his immune system attack his central nervous system. The insulation around his nerves was crumbling, weakening the signals between his brain and body.
The disease can have a wide range of symptoms and outcomes. Now 43, Grant has lost the ability to...
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