Therapy with natalizumab is associated with high JCV seroconversion and rising JCV index values. Schwab N, Schneider-Hohendorf T, Pignolet B, Breuer J, Gross CC, Göbel K, Brassat D, Wiendl H Neurol Neuroimmunol Neuroinflamm. 2016 Feb; 3(1):e195. Epub 2016 Jan 27. PMID: 26848486. Abstract CommentRecommendBookmarkWatch