1. McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
2. Department of Microbiology and Immunology, McGill University, Montreal, Canada
3. Department of Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, Netherlands
4. Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, Canada
5. Department of Viroscience, Erasmus University, Rotterdam, Netherlands
6. Faculty of Surgery, McGill University, Montreal, Canada