Affiliations:
1 World Health Organization (WHO) Regional Office for Europe, Copenhagen, Denmark

Acknowledgements

We gratefully acknowledge the input and feedback from colleagues at the European Center for Disease Prevention and Control (ECDC), namely Eeva K Broberg, Edoardo Colzani and Phillip Zucs.
We express our gratitude to all ECDC staff involved in the RSV data collection and the TESSy data management team, especially Marius Valentin Valcu, for the technical support. We would also like to acknowledge the physicians and nurses of sentinel network sites and hospitals for their contribution in collecting specimens for RSV testing. We also gratefully acknowledge the input of national clinical, laboratory and public health staff involved in surveillance activities and data submission to TESSy. The authors would also like to thank all countries for the provision of data, including the following:
Belarus: Inna Karaban (Head of Department of Hygiene, Epidemiology and Prevention, Ministry of Health, Minsk, Belarus).
Belgium: BELSARI-NET group consisting of Department of Infectiology, UZ Brussel, Brussels (Lucie Seyler), Department of Infectious Diseases, Centre hospitalier Universitaire Saint-Pierre, Brussels (Nicolas Dauby, Benedicte Delaere, Marc Bourgeois), Department of Laboratory Medicine, Medical Microbiology, Algemeen Ziekenhuis Sint-Jan, Brugge-Oostende AV (Evelyn Petit, Marijke Reynders), Department of Microbiology and Infection control, UZ Brussel, Brussels (Els Van Nedervelde, Thomas Demuyser, Arne Witdouck, Siel Daelemans, Virgini Van Buggenhout, Caroline Wylock), Department of Microbiology, Jessa Ziekenhuis, Hasselt (Door Jouck, Koen Magerman, Marieke Bleyen), Epidemiology of Infectious Diseases, Sciensano, Brussels (Melissa Vermeulen, Sebastien Fierens), National Influenza Centre, Sciensano, Brussels (François Dufrasne, Sarah Denayer, Cyril Barbezange), Pediatrics Department, CHU Saint-Pierre, Université Libre de Bruxelles (ULB), Brussels (Marc Hainaut), Service of Clinical Biology, Grand Hôpital de Charleroi, Charleroi (Benédicte Lissoir) and Service of Infectiology, Grand Hôpital de Charleroi, Charleroi (Xavier Holemans, Catherine Sion).
Czechia: Jan Kyncl, Alexander Nagy, Pavel Slezak, Jaromira Vecerova, David Vostrak (all from the National Institute of Public Health, Prague, Czech Republic).
Denmark: Members of the Danish National Influenza Team: Hanne-Dorthe Emborg, Jens Nielsen, Lisbet Krause Knudsen, Lasse Skafte Vestergaard, Amanda Bolt Botnen, Jesper Schak Krog.
Estonia: Irina Eero (Laboratory of  Infectious Diseases), Liisa Lilje (Laboratory of  Infectious Diseases)  and Eliisa Metsoja (Estonian Health Board Influenza Centre, chief specialist).
France: Bruno Lina, Martine Valette, Sylvie van der Werf, Thierry Blanchon, Nael Zemali, Sylvie Behillil, Delphine Viriot.
Ireland: Joan O’Donnell, Jeff Connell, Irish sentinel GP network, ICGP, NVRL, SARI surveillance team and HPSC influenza team.
The Netherlands: We thank the Dutch Working Group on Clinical Virology (NWKV) from the Dutch Society for Clinical Microbiology (NVMM) and all participating laboratories for providing the virological data from the weekly laboratory virological report (non-sentinel data). We thank Anne-Marie van den Brandt, Bas van der Veer, Lynn Aarts and Hai Xi Wiegmans, representing the wider team of technicians participating in RSV molecular diagnostics. We thank Rianne van Gageldonk-Lafeber, Marit de Lange, Daphne Reukers and Liz Jenniskens, from the RIVM EPI respiratory surveillance team. We thank Mariette Hooiveld from Nivel, the GP’s participating in the Nivel sentinel surveillance network and their patients for participating in the respiratory surveillance.
Portugal: Portuguese GP Sentinel Network, Portuguese Laboratory Network for Influenza and other Respiratory Viruses Diagnosis; Ana Rita Torres (Department of Epidemiology, National Institute of Health Doctor Ricardo Jorge); Aryse Melo, Camila Henriques, Inês Costa, Licínia Gomes, Miguel Lança, Nuno Verdasca (National Reference Laboratory for Influenza and Other Respiratory Viruses, Infectious Diseases Department, National Institute of Health Doctor Ricardo Jorge).
Spain: Concepción Delgado-Sanz, Clara Mazagatos, Susana Monge (National Center of Epidemiology, CIBERESP; Carlos III Health Institute); Inmaculada Casas (National Center of Microbiology, CIBERESP; Carlos III Health Institute); Tomás Vega (Servicio de Información de Salud Pública, DGSP, Consejería de Sanidad, Castilla y León).
Sweden: AnnaSara Carnahan (Folkhälsomyndigheten, Solna).
Switzerland: Swiss Sentinel Network and the Federal Office of Public Health.
United Kingdom (Wales): Jana Zitha, Panoraia Kalapotharakou, Anastasia Couzens, Kathleen Pheasant and Laura Gifford (Public Health Wales Virology and ARI surveillance team).
Uzbekistan: Dr Bakhodir Yusupaliyev, (Head of the Sanitary and Epidemiological Welfare and Public Health Service of the Republic of Uzbekistan) and Dr Sultan Djemileva, (Head of the Virological Laboratory of the Sanitary and Epidemiological Welfare and Public Health Service of the Republic of Uzbekistan).
Kosovo11This designation is without prejudice to positions on status, and is in line with UNSCR 1244 and the ICJ Opinion on the Kosovo Declaration of Independence. All references to Kosovo in this document should be understood to be in the context of the United Nations Security Council resolution 1244 (1999).: Zana Deva (National Institute of Public Health of Kosovo) and Pranvera Kacaniku (National Institute of Public Health of Kosovo).

Funding information:

The WHO Regional Office for Europe was supported for work on influenza and other respiratory viruses by a cooperative agreement from the United States Centers for Disease Control and Prevention (NU51IP000936); the funder had no role in the analysis or interpretation of the data.

Conflict of interest:

The following authors declare having received funding from the innovative medicines initiative (IMI): Adam Meijer (The Netherlands), Anne Teirlinck (The Netherlands). All other authors have no conflicts of interest to declare.
Disclaimer :
The author affiliated with the World Health Organization (WHO) is alone responsible for the views expressed in this publication and they do not necessarily represent the decisions or policies of the WHO.