Seasonal and inter-seasonal RSV activity in the European Region during the COVID-19 pandemic from autumn 2020 to summer 2022

Margaux M.I. Meslé, Mary Sinnathamby, Piers Mook, Richard Pebody*, Anissa Lakhani, Maria Zambon, Odette Popovici, Mihaela Lazăr, Amela Dedeić Ljubović, Nina Rodić Vukmir, Ayşe Başak Altaş, Emine Avci, Katarzyna Łuniewska, Karol Szymański, Greta Gargasiene, Svajune Muralyte, Ausra Dziugyte, Graziella Zahra, Ana Rita Gonçalves, Tania SpedalieroGuillaume Fournier, Daniel Alvarez-Vaca, Goranka Petrović, Irena Tabain, Katarina Prosenc, Maja Socan, Jelena Protic, Dragana Dimitrijevic, Alina Druc, Mariana Apostol, Kate Karolina Kalasnikova, Sergejs Nikisins, Janine Reiche, Wei Cai, Adam Meijer, Anne Teirlinck, Amparo Larrauri, Inmaculada Casas, Vincent Enouf, Sophie Vaux, Frederikke Kristensen Lomholt, Ramona Trebbien, Helena Jirincova, Helena Sebestova, Mónika Rózsa, Zsuzsanna Molnár, Gudrun Aspelund, Gudrun Erna Baldvinsdottir, Simon Cottrell, Catherine Moore, Athanasios Kossyvakis, Kassiani Mellou, Olga Sadikova, Johanna Kristina Tamm, Nathalie Bossuyt, Isabelle Thomas, Edita Staroňová, Lyudmila Kudasheva, Boris Pleshkov, Niina Ikonen, Otto Helve, Emma Dickson, Tanya Curran, Kseniya Komissarova, Kirill Stolyarov, Veronika Vysotskaya, Natallia Shmialiova, Božidarka Rakočević, Danijela Vujošević, Romella Abovyan, Shushan Sargsyan, Khatuna Zakhashvili, Ann Machablishvili, Oksana Koshalko, Iryna Demchyshyna, Michal Mandelboim, Aharona Glatman-Freedman, Rory Gunson, Shivani Karanwal, Raquel Guiomar, Ana Paula Rodrigues, Charlene Bennett, Lisa Domegan, Arijana Kalaveshi, Xhevat Jakupi, Gurbangul Ovliyakulova, Neli Korsun, Nadezhda Vladimirova

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Background: The emergence of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in early 2020 and subsequent implementation of public health and social measures (PHSM) disrupted the epidemiology of respiratory viruses. This work describes the epidemiology of respiratory syncytial virus (RSV) observed during two winter seasons (weeks 40–20) and inter-seasonal periods (weeks 21–39) during the pandemic between October 2020 and September 2022. Methods: Using data submitted to The European Surveillance System (TESSy) by countries or territories in the World Health Organization (WHO) European Region between weeks 40/2020 and 39/2022, we aggregated country-specific weekly RSV counts of sentinel, non-sentinel and Severe Acute Respiratory Infection (SARI) surveillance specimens and calculated percentage positivity. Results for both 2020/21 and 2021/22 seasons and inter-seasons were compared with pre-pandemic 2016/17 to 2019/20 seasons and inter-seasons. Results: Although more specimens were tested than in pre-COVID-19 pandemic seasons, very few RSV detections were reported during the 2020/21 season in all surveillance systems. During the 2021 inter-season, a gradual increase in detections was observed in all systems. In 2021/22, all systems saw early peaks of RSV infection, and during the 2022 inter-seasonal period, patterns of detections were closer to those seen before the COVID-19 pandemic. Conclusion: RSV surveillance continued throughout the COVID-19 pandemic, with an initial reduction in transmission, followed by very high and out-of-season RSV circulation (summer 2021) and then an early start of the 2021/22 season. As of the 2022/23 season, RSV circulation had not yet normalised.

Original languageEnglish
Article numbere13219
JournalInfluenza and other Respiratory Viruses
Volume17
Issue number11
DOIs
Publication statusPublished - Nov 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Influenza and Other Respiratory Viruses published by John Wiley & Sons Ltd.

Keywords

  • COVID-19 pandemic
  • Europe
  • epidemiology
  • respiratory syncytial virus
  • severity
  • surveillance

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