1. Botswana Harvard Health Partnership, Private Bag BO320, Gaborone, Botswana
2. Africa Health Research Institute, Durban 4013, South Africa
3. The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
4. Pan-African University (Life and Earth Sciences Institute), University of Ibadan, Ibadan 200132, Nigeria
5. School of Allied Health Professions, Faculty of Health Sciences, University of Botswana, Private Bag UB 0022, Gaborone, Botswana
6. Department of Biological Sciences, Faculty of Science, University of Botswana, Private Bag UB 0022, Gaborone, Botswana
7. Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana
8. Faculty of Medicine, University of Botswana, Private Bag UB 0022, Gaborone, Botswana
9. Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
10. Division of Infectious Diseases, Brigham and Women’s Hospital, Boston, MA 02115, USA
11. Division of Medical Virology, Faculty of Medicine and Health Sciences, University of Stellenbosch, Stellenbosch, Private Bag X1, Matieland 7602, South Africa
12. School of Health Systems and Public Health, University of Pretoria, Private Bag X20, Pretoria 0028, South Africa