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Authors
Buonsenso, Danilo https://orcid.org/0000-0001-8567-2639
Perramon-Malavez, Aida
Morello, Rosa
Gentili, Carolina
Bellorofonte, Marta
Soriano-Arandes, Antoni
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Article History
Received: 29 May 2025
Accepted: 20 October 2025
First Online: 14 November 2025
Declarations
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: This retrospective observational study involving human participants followed the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study is a subanalysis of a larger European multicenter study assessing changes in bronchiolitis in Europe before and after the beginning of the pandemic (Comitato Etico Fondazione Policlinico Universitario A. Gemelli IRCCS ID 3497, Prot 0049226/20, 02/10/2020). Consent was not required at any site for these aggregated, population level datasets.
: not applicable.
: RM and DB has participated to trials for Nirsevimab in healthy late preterm and term infants as a sub investigator.The rest of the authors have nothing to declare.
