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Authors
Zhu, Yan-Yan
Zhou, Jin-Si
Yang, Jin-Hong
Lu, Zhao-Jun
Fang, Chao
Zhou, Ming-Ming
Yao, Kai-Hu
Li, Xiao-Yu
Sun, An-Li
Catusse, Julie
Dunne, Eileen M.
Hua, Chun-Zhen https://orcid.org/0000-0003-2829-5878
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Funding
Funding for this research was provided by:
Pfizer
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Article History
Received: 6 May 2026
Accepted: 14 September 2026
First Online: 7 October 2026
Declarations
Disclosures: An-Li Sun, Julie Catusse and Eileen M. Dunne are employed by Pfizer and may hold stock or stock options. Yan-Yan Zhu, Jin-Si Zhou, Jin-Hong Yang, Zhao-Jun Lu, Chao Fang, Ming-Ming Zhou, Kai-Hu Yao, Xiao-Yu Li and Chun-Zhen Hua have no conflicts of interest to declare.
Ethics Approval: The study was approved by the Ethics Committee of the Children's Hospital, Zhejiang University School of Medicine (No.: 2021 - IRB - 141 - A1), the Ethics Committee of Hangzhou Children's Hospital (No.:2021(78), and the Ethics Committee of Yuying Children’s Hospital of Wenzhou Medical University (No.: 2023-K-194-02). The study was performed in accordance with the Helsinki Declaration of 1964, and its later amendments. Informed consent was not required as study data were anonymized and no study-specific procedures were performed. Data including age, gender, date of disease, underlying diseases, infection site, complications, treatments, and outcomes were extracted from medical records.
