http://articles.mercola.com/sites/articles/archive/2005/03/16/ms-drug-death.aspxMultiple Sclerosis (MS) drug Tysabri, which was expected to become the world’s leading treatment for the condition, was pulled from the market after a patient died from a rare central nervous system infection. The patient died from progressive multifocalenCommunityServer 2008.5 SP1 (Build: 31106.3070)