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There has been a recent surge in new confirmed cases of progressive multifocal leukoencephalopathy (PML) associated with the multiple sclerosis drug, Tysabri (natalizumab), with the 24th case reported to the EMEA on 25 October.
United Kingdom
Friday August 20 2010
Friday August 20 2010
Thursday August 19 2010
Thursday August 12 2010
Tuesday August 10 2010