1. Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
2. Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University, Cambridge, MA 02139, USA.
3. Thayer School of Engineering at Dartmouth, Hanover, NH 03755, USA.
4. University of Massachusetts Medical School, Worcester, MA 01605, USA.
5. New England Primate Research Center, Southborough, MA 01772, USA.
6. Bioqual, Rockville, MD 20852, USA.
7. Children’s Hospital, Boston, MA 02115, USA.
8. JPT Peptide Technologies GmbH, 12489 Berlin, Germany.
9. AIDS and Cancer Virus Program, Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD 21702, USA.
10. Washington University School of Medicine, St. Louis, MO 63110, USA.
11. GSK Vaccines, 1330 Rixensart, Belgium.
12. Janssen Infectious Diseases and Vaccines (formerly Crucell), 2301 Leiden, Netherlands