About The Study: In this cohort study of children hospitalized with respiratory syncytial virus (RSV) in 2022 and 2023, severe RSV disease was more likely among those age 2 or older with pulmonary and neurologic, neuromuscular, or developmental conditions. For children younger than 2 years, age younger than 6 months and prematurity were the main risk factors. These findings support prevention strategies for all younger children, including premature infants, with potential benefit for children age 2 or older in specific high-risk groups.
Corresponding Author: To contact the corresponding author, Peter J. Gill, MD, DPhil, MSc, email peter.gill@sickkids.ca.
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(doi:10.1001/jamanetworkopen.2025.4666)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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