(Posted By: Josi Creek)
NEW YORK (Dow Jones)--Biogen Idec Inc. (BIIB) disclosed seven more cases of a rare brain infection in multiple sclerosis patients using Tysabri, which it sells with Elan Corp. (ELN), bringing the total number of cases to 42 as of last Wednesday.
Another patient with the infection has died, bringing the total deaths to nine in patients that have developed progressive multifocal leukoencephalopathy, or PML, according to the Cambridge, Mass., biotech company.
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