1. National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Imperial College London , London , UK
2. Regional Center for Infection Prevention and Control, Region of Pays de la Loire, Nantes University Hospital , Nantes , France
3. Cibles et médicaments des infections et de l'immunité, IICiMed, UR 1155, Nantes Université, Nantes, France
4. Surgical Gastroenterology, Amrita Hospital , Faridabad , India
5. Faculty of Health Sciences, University of Liverpool , Liverpool , UK