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A member asked:
What are the current pml figures while taking tyasbri? how much at risk am i at if i have a negative jcv test? and if for some reason my jcv changes..
A doctor has provided 1 answer
Bad risk: The jcv test is not very definitive. Tysabri (natalizumab) lowers immune response and can cause activation of latent virus agents and prions. The risk is significant regardless of the jcv status.
Answered 5/18/2013
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