Recommendations of the Spanish Group on Crohn¿s Disease and Ulcerative Colitis on the importance, screening and vaccination in inflammatory bowel disease patients Rocío Ferreiro-Iglesias; Marta Piqueras; Elena Ricart; Laura Sempere; Mariona Roca; Javier Martín de Carpi; Olga Benítez; Yamile Zabana; Míriam Mañosa; Francisco Rodríguez-Moranta; Manuel Barreiro-de Acosta;