1. Botswana–Harvard AIDS Institute Partnership, Gaborone, Botswana.
2. Division of Medical Virology, University of Stellenbosch, Stellenbosch, South Africa.
3. Washington State University College of Veterinary Medicine, Pullman, Washington.
4. Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts.
5. Division of Sleep Medicine, Brigham and Women's Hospital, Boston, Massachusetts.
6. Department of Immunology and Infectious Diseases, Harvard School of Public Health AIDS Initiative, Harvard School of Public Health, Boston, Massachusetts.
7. National Health Laboratory and Botswana-Harvard HIV Reference Laboratory, Gaborone, Botswana.
8. National Health Laboratory Service, Cape Town, South Africa.
9. R. Stempel College of Public Health and Social Work, Florida International University, University Park, Miami, Florida.