1. Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
2. Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
3. Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
4. Respiratory Virus Unit, Microbiology Department, Vall d’Hebron Institut de Recerca (VHIR), Vall d’Hebron Barcelona Hospital Campus, Barcelona, Spain
5. Microbiology Department, Donostia University Hospital and Biodonostia Health Research Institute, San Sebastián, Spain
6. Landspitali-National University Hospital, Reykjavik, Iceland
7. Université d’Auvergne, LMGE UMR CNRS 6023, Equipe EPIE - Epidémiologie et physiopathologie des infections à entérovirus, Faculté de Médecine, Clermont-Ferrand, France
8. CHU Clermont-Ferrand, National Reference Centre for enteroviruses and parechoviruses – Associated laboratory, Clermont-Ferrand, France
9. Department of Clinical Surgical Diagnostic and Pediatric Sciences, Università degli Studi di Pavia, Pavia, Italy
10. Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Italy
11. UK Health Security Agency, Colindale, United Kingdom
12. National laboratory of health, environment and food, Laboratory for public health virology, Ljubljana, Slovenia
13. National Reference Center for Poliomyelitis and Enteroviruses, Robert-Koch Institute, Berlin, Germany
14. National Institute for Health and Welfare, Helsinki, Finland
15. Department of Biomedical Sciences of Health, University of Milan, Milan, Italy
16. Hospital Universitario La Paz, Madrid, Spain
17. National Centre for Microbiology, Instituto de Salud Carlos III, Enterovirus and Viral Gastroenteritis Unit/Polio National Lab, Madrid, Spain
18. Laboratory of Microbiology, ASST Monza, San Gerardo Hospital, Monza (MB), Italy
19. Virology Unit, Division of Clinical Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
20. National Institute of Health (INSA), Lisbon, Portugal
21. Public Health Wales, Cardiff, United Kingdom
22. Microbiology Department Hospital Universitari de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
23. National Virus Reference Laboratory, University College Dublin, Dublin, Ireland
24. Department of Virology, Norwegian Institute of Public Health, Oslo, Norway
25. Center for Public Health Research (FISABIO-Public Health), Generalitat Valenciana, Valencia, Spain
26. Chemical-clinical and Microbiological Analyses, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
27. National Public Health Center, Budapest, Hungary
28. Regional Virus Laboratory, Belfast Health and Social Care Trust (BHSCT, Royal Victoria Hospital, Belfast, United Kingdom
29. Laboratory for Medical Microbiology and Immunology, Rijnstate, Velp, the Netherlands
30. National Reference Laboratory for Enteroviruses, National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
31. Institute of Medical Microbiology and Virology, University of Leipzig, Leipzig, Germany
32. National Reference Center for Enteroviruses and Parechoviruses, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
33. Secretary of the commission for Polio Eradication in Germany, Robert-Koch Institute, Berlin, Germany
34. CIBERESP, Instituto de Salud Carlos III, Madrid, Spain
35. The Danish WHO National Reference Laboratory for Poliovirus, Statens Serum Institut, Copenhagen, Denmark
36. Elisabeth Tweesteden Hospital, Tilburg, the Netherlands
37. National Institute of Public Health, Prague, Czech Republic
38. Maasstad Hospital, Rotterdam, the Netherlands
39. Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
40. Pediatric Hospitalization Unit, Department of Pediatrics, Hospital Universitari Vall d’Hebron, Vall d’Hebron Barcelona Hospital Campus, Barcelona, Spain
41. Clinical Microbiology, Turku University Hospital and Institute of Biomedicine, University of Turku, Turku, Finland
42. University of Oxford, Oxford, United Kingdom
43. Nordsjaellands Hospital, Hillerod, Denmark
44. University of Sothern Denmark, Odense, Denmark
45. University College London (UCL), Department of infection and Immunity, London, United Kingdom
46. NHS Blood and Transplant, Microbiology Services, Colindale, United Kingdom