
A follow-up study of 35 MS patients with Tysabri-associated progressive multifocal leukoencephalopathy provides a somewhat encouraging survival rate of about 70%.
This percentage is more than twice the quoted survival rate of other patient types with PML (eg, those with HIV infection or following transplantation), and the authors speculate that the improved survival in Tysabri-related cases may be due (partially) to the ability to reconstitute the immune system more easily in these cases.
Factors that appear ... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1768