1. Division of Immunology and Allergy, Department of Medicine, Centre Hospitalier Universitaire Vaudois, University of Lausanne, 1011 Lausanne, Switzerland
2. MRC Clinical Trials Unit, London NW1 2DA, UK
3. Imperial College, St. Mary's Hospital, London SW7 2AZ, UK
4. Institut de Virologie, Université Louis Pasteur, F-67070 Strasbourg, France
5. Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
6. Institute of Medical Microbiology, University of Regensburg, 93053 Regensburg, Germany
7. Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, CSIC, 28049 Madrid, Spain
8. Department of Virology, BPRC, 2280 GH Rijswijk, Netherlands
9. University of Cambridge, Cambridge CB2 1TN, UK
10. sanofi pasteur, 69367 Lyon, France
11. sanofi pasteur, Toronto, Ontario M2R 3T4, Canada