Biogen Idec Inc. reported 13 more cases of a rare brain infection occurring in multiple-sclerosis patients taking the drug Tysabri, sold with Elan Corp, bringing the affected patients to 124 as of May 4.
The Weston, Mass., biotech company said there was one more death among those patients, bringing total deaths to 23.
The incidence of the infection--progressive multifocal leukoencephalopathy, or PML--is updated monthly and is closely watched.... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1905
