1. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.
2. IAVI Neutralizing Antibody Center, Scripps Research Institute, La Jolla, CA 92307, USA.
3. Center for HIV/AIDS Vaccine Development, Scripps Research Institute, La Jolla, CA 92307, USA.
4. Department of Immunology and Microbial Science, Scripps Research Institute, La Jolla, CA 92307, USA.
5. Vaccine Research Center, National Institutes of Health, Bethesda, MD 20892, USA.
6. IAVI, 125 Broad Street, 9th Floor, New York, NY 10004, USA.
7. Department of Medicine, University of Washington, Seattle, WA 98195, USA.
8. Department of Microbiology, Immunology and Tropical Medicine, School of Medicine and Health Sciences, George Washington University, Washington DC, 20052, USA.
9. Department of Medicine, School of Medicine and Health Sciences, George Washington University, Washington DC 20052, USA.
10. Department of Radiology, University of Washington, Seattle, WA 98195, USA.
11. Department of Radiology, School of Medicine and Health Sciences, George Washington University, Washington DC 20052, USA.
12. Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02139, USA.