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Resurgence and clinical evolution of influenza A in Chinese children: shifting epidemiology and serological dynamics across pre-, intra-, and post-pandemic eras (2019–2023)

Crossref DOI link: https://doi.org/10.1186/s12879-025-12468-z

Published Online: 2026-01-17

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Xu, Guiling

Chen, Yu

Zhu, Yu

Fang, Qing

Xue, Xiaotong

Hu, Kejun

Zhou, Sha

Hong, Li

Xiang, Ying
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Text and Data Mining valid from 2026-01-17

Version of Record valid from 2026-02-11
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Article History

Received: 22 October 2025

Accepted: 23 December 2025

First Online: 17 January 2026

Declarations

:

: This study was reviewed and approved by the Ethics Committee of Shanghai Children’s Medical Center, under approval number SCMCIRB-K2025192-1. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

: Not applicable.

: The authors declare no competing interests.

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