1. Service Hépatogastro-entérologie—Centre Hospitalier Annecy Genevois, Annecy, France.
2. Service de Bactériologie—Centre Hospitalier Annecy Genevois, Annecy, France.
3. Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France.
4. Bordeaux Institute of Oncology, BRIC U1312, INSERM, Université de Bordeaux, CHU de Bordeaux, Bordeaux, France.