1. Department of ImmunologyInstitut de Recerca and Hospital Santa Creu i Sant Pau Barcelona Spain
2. Department of GastroenterologyHospital Santa Creu i Sant Pau Barcelona Spain
3. CIBERehdInstituto de Salud Carlos III Madrid Spain
4. Universitat Autònoma de Barcelona Barcelona Spain
5. Escola Universitària d'Infermeria EUI‐Sant Pau Barcelona Spain
6. Department of MicrobiologyHospital Santa Creu i Sant Pau Barcelona Spain