I don't think it is much of a mystery anymore that tysabri is nearly a miracle drug for many MS patients. Its efficacy is such that copaxone can be considered nearly a placebo on comparison. Your wife is one of thousands who is evidence of that.
I have pretty much given up following ELN after it was forced to sell on the very cheap half of its alzheimer program. Has there been any development in identifying markers to identify those patients at risk for PML?
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