Varicella-zoster-virus (VZV) reactivation, which can cause patients to develop herpes zoster (i.e., shingles), occurs more frequently in patients with systemic vasculitis and systemic lupus erythematosus (SLE) who have received intravenous cyclophosphamide than in otherwise healthy adults, according to a retrospective study published in The Journal of Rheumatology by researchers in France.1 The study also shows…
