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Wesley, here are some numbers on the risks of developing PML while on Tysabri. These come from a presentation given to the American Academy of Neurology in April 2011. JC virus negative: ≤0.11/1000 (Note: this risk is essentially 0. The only risk would be the very unlikely cases of someone testing n...

I'd like to second everything Harry said. He's right on the money. One of the worst things about the disease is its unpredictability. People can go years between relapses or weeks. Thus, it becomes extremely difficult to tell what works (as you know from your current dilemma with Copaxone.) What's m...

Wesley, I can empathize with your situation. I have been on Copaxone for over 2.5 years since being officially diagnosed with MS. I had done very well until entering a period of high disease activity with a severe relapse this last October. Until recently I had been very fearful of Tysabri as well. ...

I Have been looking at the subject since I recently entered a very active stage of my MS. I am JC virus positive and am planning to start the medication, then discontinue after one year, in order to try to cool off the disease. Hoping to start BG-12 if/when it becomes approved. I am aware of 2 studi...