1. The European Centre for Disease Prevention and Control, Stockholm, Sweden
2. Cardiff University School of Biosciences, Cardiff, United Kingdom
3. Public Health Wales Microbiology, Cardiff, United Kingdom
4. Biozentrum, University of Basel, Basel, Switzerland
5. Smorodintsev Research Institute of Influenza, Saint Petersburg, Russian Federation
6. Global Initiative on Sharing All Influenza Data (GISAID), Munich, Germany
7. National Public Health Laboratory, National Centre for Infectious Diseases, Ministry of Health, Singapore, Singapore
8. Bioinformatics Institute, Agency for Science Technology and Research, Singapore, Singapore
9. Department of Biological Sciences, National University of Singapore, Singapore, Singapore
10. University of Edinburgh, Edinburgh, United Kingdom
11. Health Emergency Programme, WHO Regional Office for Europe, Copenhagen, Denmark