1. Department of Medicine, College of Medicine and Allied Health Sciences, University of Sierra Leone, Freetown, Sierra Leone
2. Ministry of Health and Sanitation, Freetown, Sierra Leone
3. Group of Virology and Pathogenesis, Galicia Sur Health Research Institute (IIS Galicia Sur)-Complexo Hospitalario Universitario De Vigo, SERGAS-UVigo, Spain
4. Department of Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria
5. Department of Medicine, University College Hospital, Ibadan, Nigeria
6. Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
7. Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
8. Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
9. Division of Infectious Diseases and HIV Medicine, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
10. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA