1. Faculty of Health Sciences, University of Buea Buea Cameroon
2. Pan‐African Organization for Health, Education and Research Manchester Missouri USA
3. Department of Population Health Research, Health Education and Research Organization (HERO) Buea Cameroon
4. Division of Gastroenterology Massachusetts General Hospital Boston Massachusetts USA
5. Department of Internal Medicine Buea Regional Hospital Buea Cameroon
6. Harvard Medical School Boston Massachusetts USA
7. Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health University of Oxford Oxford UK
8. Division of Infectious Diseases Massachusetts General Hospital Boston Massachusetts USA
9. Ragon Institute of MGH, MIT and Harvard Cambridge Massachusetts USA
10. University Hospital of the North Midlands NHS Trust Stoke‐on‐Trent UK
11. Douala General Hospital Douala Cameroon