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Re: iwfal post# 85486

Wednesday, 10/28/2009 2:56:19 PM

Wednesday, October 28, 2009 2:56:19 PM

Post# of 252426
Being a JCV positive is considered a risk factor for PML. So are long term use with Tysabri and immunosuppressive treatment. By screening for JCV before giving the drug, the risk for PML should be markedly reduced.

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