title: Asymptomatic reactivation of JC virus in patients treated with  natalizumab.
authors.forename: Cillian F
authors.initials: CF
authors.lastname: De Gascun
authors.forename: Roisin M
authors.initials: RM
authors.lastname: Lonergan
authors.forename: William W
authors.initials: WW
authors.lastname: Hall
mesh_terms: D000911:Antibodies, Monoclonal / Q000009:adverse effects* / Q000627:therapeutic use; D061067:Antibodies, Monoclonal, Humanized; D006801:Humans; D039441:Integrin alpha4 / Q000276:immunology; D007577:JC Virus / Q000302:isolation & purification* / Q000502:physiology; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000188:drug therapy*; D000069442:Natalizumab; D012367:RNA, Viral / Q000097:blood / Q000652:urine; D019562:Viral Load; D014766:Viremia; D014775:Virus Activation / Q000187:drug effects*
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000069442:Natalizumab; D012367:RNA, Viral; D039441:Integrin alpha4