1. Unit of Epidemiology and Diversity of Microorganisms Nouakchott Mauritania
2. Gastroenterology Department Chiva Clinic Nouakchott Mauritania
3. Centre Université de ParisFrance Bacteriology LaboratoryCochin HospitalAP‐HP Paris France
4. Gastroenterology Department Cheikh Zayid hospital Nouakchott Mauritania
5. Gastroenterology Department Military Hospital Nouakchott Mauritania
6. Anatomo‐pathology Department Centre Hospitalier National Nouakchott Mauritania
7. Anatomo‐pathology Department Chiva Clinic Nouakchott Mauritania
8. Université Paris SaclayBacteriology LaboratoryBicêtre HospitalAP‐HP Le Kremlin‐Bicêtre France
9. Department of Computational Biology Institut Pasteur Paris France