1. Nivel (Netherlands Institute for Health Services Research) Utrecht The Netherlands
2. Royal Centre for Disease Control Ministry of Health Thimphu Bhutan
3. Department of Immunization and Communicable Diseases Ministry of Health Brasilia Brazil
4. Subdepartamento Enfermedades Virales Instituto de Salud Pública de Chile Santiago Chile
5. Sección Virus Respiratorios, Subdepartamento Enfermedades Virales Instituto de Salud Publica de Chile Santiago Chile
6. Department of Infectious Diseases Epidemiology National Institute of Public Health Prague Czech Republic
7. Department of Epidemiology and Biostatistics, Third Faculty of Medicine Charles University Prague Czech Republic
8. National Reference Laboratory for Influenza and Other Respiratory Viruses National Institute of Public Health Prague Czech Republic
9. Universidad Agraria del Ecuador Guayaquil Ecuador
10. Instituto Nacional de Investigación en Salud Pública (INSPI) Centro de Referencia Nacional de Influenza y otros Virus Respiratorios Guayaquil Ecuador
11. National Institute for Public Health and the Environment Bilthoven The Netherlands
12. Institute of Environmental Science and Research Limited (ESR) National Centre for Biosecurity and Infectious Disease (NCBID) Upper Hutt New Zealand
13. Instituto Nacional de Saúde Doutor Ricardo Jorge Lisbon Portugal
14. Ministry of Health Singapore
15. Saw Swee Hock School of Public Health Singapore
16. National Centre for Infectious Diseases Singapore
17. Centre for Respiratory Disease and Meningitis National Institute for Communicable Diseases Johannesburg South Africa
18. School of Public Health University of Witwatersrand Johannesburg South Africa
19. National Centre of Epidemiology, CIBER Epidemiología y Salud Pública (CIBERESP) Institute of Health Carlos III (ISCIII) Madrid Spain
20. Sanofi Pasteur Lyon France