Serological response to vaccines against SARS-CoV-2 in patients with inflammatory bowel disease Alicia Algaba; Sara Romero; Alicia Granja; Daniel Garza; Mar Aller; Sara Barrero; Iván Guerra; Marina Gil; Nazaret Pizarro; Paloma Ruiz; Santiago Prieto; Belén Hernández; Aranzazu Pou; Fernando Bermejo;

Limitations of the determination of faecal calprotectin in patients with ulcerative colitis and inflammatory polyps Fernando Bermejo; Alicia Algaba; Daniel Bonillo; Laura Jiménez; Antonio Guardiola-Arévalo; María Pacheco; Ángel Castaño; Iván Guerra;

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;