Impact of surveillance of hepatitis b and hepatitis c in patients with inflammatory bowel disease under anti-TNF therapies: Multicenter prospective observational study (REPENTINA 3)

1) Response to vaccination/revaccination is low in patients with anti-TNF. Young patients vaccinated at the beginning of anti-TNF and receiving it as a monotheraphy showed better response. 2) Long-lasting effective vaccination is greatest in patients previously vaccinated. 3) Following-up the established surveillance and/or preventive anti-viral therapy seems to be safe in HBV and HCV patients.