1. Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University, Cambridge, Massachusetts, USA
2. HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
3. Division of Infectious Diseases, Brigham and Women's Hospital, Boston, Massachusetts, USA
4. Vaccine and Immunotherapy Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
5. Howard Hughes Medical Institute, Chevy Chase, Maryland, USA