1. Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
2. Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
3. Department of Global Health, University of Washington, Seattle, Washington, USA
4. Duke Human Vaccine Institute, Department of Surgery, Duke University, Durham, North Carolina, USA
5. National Institute for Communicable Diseases, Johannesburg, South Africa
6. Vaccine Research Center (VRC), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
7. Family Health International, Durham, North Carolina, USA
8. Division of Infectious Diseases, Department of Medicine, Emory University, Decatur, Georgia, USA
9. Clinical Trials Research Centre, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
10. Department of Medicine, Division of Infectious Diseases, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
11. Institute for Global Health and Infectious Diseases, University of North Carolina, Chapel Hill, North Carolina, USA
12. Departments of Medicine and Laboratory Medicine, University of Washington, Seattle, Washington, USA
13. Department of Biostatistics, University of Washington, Seattle, Washington, USA