1. Department for the control of Disease, Epidemics and Pandemics; Ministry of Public Health; Yaoundé Cameroon
2. Epicentre; Yaoundé Cameroon
3. Harvard Medical School; Boston Massachusetts
4. Center for Global Health; Massachusetts General Hospital; Boston Massachusetts
5. Division of Infectious Diseases; Department of Medicine; Massachusetts General Hospital; Boston Massachusetts
6. Faculty of Medicine; Mbarara University of Science and Technology; Mbarara Uganda
7. Division of Gastroenterology; Department of Medicine; Massachusetts General Hospital; Boston Massachusetts
8. Faculty of Medicine and Biomedical Sciences; Department of Public Health; University of Yaoundé I; Yaoundé Cameroon
9. Laboratoire du Lac; Yaoundé Cameroun
10. Centre Pasteur; Yaoundé Cameroon
11. Faculty of Medicine and Biomedical Sciences; Department of Internal Medicine; University of Yaoundé I; Yaoundé Cameroon