2026-04-22T21:41:29Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/528302025-02-21T08:05:49Zcom_10324_1181com_10324_931com_10324_894col_10324_1387

Variation in the seasonality of the respiratory syncytial virus during the COVID-19 pandemic Bermudez Barrezueta, Lorena Concepción Matías del Pozo, Vanesa López Casillas, Pablo Brezmes Raposo, Marta Gutiérrez Zamorano, María Pino Vázquez, María de la Asunción Producción Científica Background The COVID-19 pandemic has caused a variation in the circulation of common respiratory viruses. Our objective was to analyse the epidemiology of respiratory syncytial virus (RSV) bronchiolitis admissions during the COVID-19 pandemic in comparison with previous epidemic seasons. Methods We conducted an observational study involving infants with RSV bronchiolitis admitted to a tertiary hospital during two periods: pandemic COVID-19 (15 March 2020–30 September 2021) and pre-pandemic (1 October 2014–14 March 2020). Demographic and clinical characteristics were collected. Results A total of 270 patients were admitted for RSV bronchiolitis: 253 in the pre-pandemic period with an average of 42 admissions per season vs 17 in the pandemic. During the pandemic, the RSV outbreak started late in June 2021 with a higher percentage of prematurity and PICU admissions. Conclusion A change in RSV seasonality was observed during the COVID-19 pandemic, with an unusual outbreak in summer 2021 of lower magnitude than previous seasons. 2022-04-19T09:39:13Z 2022-04-19T09:39:13Z 2022 info:eu-repo/semantics/article Infection, 2022. 0300-8126 https://uvadoc.uva.es/handle/10324/52830 10.1007/s15010-022-01794-y Infection 1439-0973 eng https://link.springer.com/article/10.1007/s15010-022-01794-y info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2022 The Authors Atribución 4.0 Internacional Springer SI