I have been on tysabri for 14 months and have just found out my last test for
Jcv came back positive. Its only a low positive.just wondering if anyone has had a low positive turn to
a high positive and if so how long did it take to happen?
Pretty sure I am going to come off anyway as have had problems from start with tysabri.many side effects
and continually wiped out on it.
Thanks for any replies