1. Vaccine Research Center, National Institutes of Health, Bethesda, MD 20892, USA.
2. Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA.
3. Duke Human Vaccine Institute, Duke University School of Medicine, and Duke University Medical Center, Durham, NC 27710, USA.
4. Division of Infectious Diseases and International Health, Department of Medicine, and Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA.
5. Kilimanjaro Christian Medical Centre and Kilimanjaro Christian Medical College, Tumaini University, Moshi, Tanzania.
6. Kilimanjaro Reproductive Health Programme, Moshi, Tanzania.
7. International AIDS Vaccine Initiative (IAVI), New York, NY 10038, USA.
8. Department of Immunology and Microbial Science and IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
9. Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, Cambridge, MA 02129, USA.
10. Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
11. NIH Intramural Sequencing Center (NISC), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.