1. Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, C.P. México City, México
2. Centre for Vaccinology, Ghent University and Ghent University Hospital, Ghent, Belgium
3. Vaccination and Travel Medicine Centre, Hradec Kralove, Czech Republic; and 2nd Faculty of Medicine, Charles University in Prague, Czech Republic
4. Jeanne-Marie Devaster, MD, GSK Vaccines, Rixensart, Belgium
5. Institut für Tropenmedizin, Tübingen, Germany
6. Inserm, CIC 1417 and French Network of Clinical Investigation in Vaccinology (I-REIVAC), France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin, CIC Cochin Pasteur, Paris, France
7. HSN Volunteer Association Chair in Geriatric Research, Health Sciences North Research Institute, Sudbury, ON, Canada
8. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
9. Institute of Statistics, Biostatistics and Actuarial Sciences, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
10. GSK Vaccines, Wavre, Belgium
11. GSK Vaccines, Rixensart, Belgium
12. Hôpital Bichat Claude Bernard, GH BICHAT. Paris cedex 18, France; Inserm, CIC 007 for the French Network of Clinical Investigation in Vaccinology (REIVAC), Paris Cedex 18, France
13. University of Rochester Medical Center, Rochester General Hospital, Rochester, NY, USA
14. Carolina Pharmaceutical Research, Spartanburg, South Carolina, United States
15. CHRU de Montpellier, Hôpital Saint Eloi, Montpellier, France; Inserm, CIC 1001 for the French Network of Clinical Investigation in Vaccinology (REIVAC), Montpellier, France
16. Q&T Research Sherbrooke, Sherbrooke, QC, Canada
17. Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University School of Medicine, Taipei, Taiwan
18. Queen Elizabeth Health Sciences Centre, Dalhousie University, PCIRN, NACI, CCfV, CAIRE, QEII HSC - VG Site Infectious Diseases, Halifax, Nova Scotia, Canada
19. GGD Rotterdam-Rijnmond, Rotterdam, The Netherlands
20. GSK Vaccines, King of Prussia, PA, USA