Recurrent Varicella following Steroids and Fingolimod in a Multiple Sclerosis Patient. Ferraro D, De Biasi S, Vitetta F, Simone A, Federzoni L, Borghi V, Cossarizza A, Nichelli P, Sola P J Neuroimmune Pharmacol. 2013 Oct 27. Epub 2013 Oct 27. PMID: 24163092. Abstract CommentRecommendBookmarkWatch