ArticleBMC public health2026
Post‑pandemic shifts in the age distribution of RSV, influenza A, and rhinovirus infections: A four‑year pediatric surveillance study.
Article in BMC public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Editorial: New discoveries and challenges in pediatric infectious diseases: epidemiological, clinical, and pathogenic advances.Frontiers in pediatrics · 2026Article
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Abstract
backgroundWhether age distributions of common pediatric respiratory viruses changed uniformly after the COVID‑19 pandemic remains unclear. Understanding pathogen‑specific patterns is important for guiding surveillance and prevention strategies in the post‑pandemic period.
methodsWe conducted a retrospective hospital‑based cohort study of 19,900 laboratory‑confirmed single‑virus infection episodes caused by RSV, influenza A virus (FluA), and human rhinovirus (HRV) among children aged 0-17 years who presented to a provincial women's and children's hospital in China from 2022 to 2025. These data describe age distributions among detected cases and do not represent population‑level incidence. Age distributions were examined using kernel density estimation and quantile regression. Annual proportions of children aged ≥ 3 years were compared across pathogens and years, and multivariable logistic regression was used to assess adjusted associations with older age. Sensitivity analyses included outpatient‑only models, RSV‑only models, and an alternative age cutoff of ≥ 5 years.
resultsRSV infections occurred mainly in the youngest children (median 1.4-2.6 years), FluA affected older children (median up to 5.9 years), and HRV showed a stable intermediate pattern (median 2.9-3.5 years). FluA demonstrated clear shifts toward older ages in 2023 and 2025, whereas RSV showed only modest variation and HRV remained stable across years. Compared with RSV, FluA (OR 5.69) and HRV (OR 3.29) were strongly associated with being ≥ 3 years old. Findings were consistent across all sensitivity analyses.
conclusionsAge redistribution after the pandemic differed by pathogen. FluA shifted toward older children, RSV remained concentrated in early childhood, and HRV returned to a stable pre‑pandemic profile. These. results highlight the value of pathogen‑specific, age‑stratified approaches to pediatric respiratory virus surveillance in the post‑pandemic era.
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