ArticleBMC public health2024
Changes in the epidemiological characteristics of influenza in children in Zhengzhou, China, in the post-COVID-19 era.
Article in BMC public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Emergence of the novel PA-D27G mutation conferring reduced baloxavir susceptibility in influenza A viruses circulating in China, 2018-2025.Emerging microbes & infections · 2026Article
- Epidemiology and severity of pediatric influenza hospitalizations before and during the COVID-19 pandemic: a surveillance study of the Canadian immunization monitoring program (IMPACT), 2012-2023.Lancet regional health. Americas · 2026Article
- Research on influenza surveillance and a prediction model based on multi-source data.BMC medical informatics and decision making · 2026Article
- Clinical outcomes of influenza in individuals aged ≤20 years before and after COVID-19: a national analysis of mortality and complications.Pediatric research · 2026Article
- Long-term epidemiological patterns of pediatric infectious diseases in an urban district of Shanghai, 2015-2023.Frontiers in pediatrics · 2026Article
- Epidemiological characteristics analysis of childhood influenza A virus infections in Hebei, China (2020-2024).Frontiers in pediatrics · 2026Article
- Shifts in Pediatric Respiratory Virus Trends After the COVID-19 Pandemic: Insights From a 12-Year Hospital-Based Study in South Korea.International journal of pediatrics · 2026Article
- A 14-year influenza reinfection surveillance in Chongqing, China: A retrospective analysis.Human vaccines & immunotherapeutics · 2025Article
- Clinical outcomes and healthcare utilization of hospitalized children with influenza versus COVID-19.Clinical and experimental pediatrics · 2025Article
- Clinical Characteristics of Paediatric RSV, Influenza, and SARS-CoV-2 Infections: Insights from Three Consecutive Seasons.Viruses · 2025Article
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- Six-year epidemiological dynamics of human respiratory syncytial virus infections in children in central China (2019-2024): pandemic suppression, 2023 resurgence, and immune debt effect.Frontiers in cellular and infection microbiology · 2025Article
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9 authors.
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Abstract
backgroundInfluenza is a contagious respiratory disease posing a huge burden of disease for children around the world. The purpose of this study was to investigate the epidemiologic changes in childhood influenza in Zhengzhou, China, before, during, and after the COVID-19 outbreak. The aim of this study was to determine the impact of the COVID-19 outbreak and related prevention and control policies on the children's influenza epidemiological trend.
methodsAll influenza report card data from the Children's Hospital Affiliated with Zhengzhou University's Disease Surveillance Reporting Management System were collected and analyzed monthly from January 2018 to December 2023. The period of the study was divided into three phases for comparison: the pre-pandemic period, the pandemic period, and the post-pandemic period.
resultsBetween January 2018 and December 2023, a total of 82,030 children with influenza were diagnosed at our hospital, including 46,453 males and 35,577 females. A total of 11,833 of them had to be hospitalized for influenza, and 321 of them were brought to the ICU. Influenza showed low-level epidemiologic status during the COVID-19 pandemic, and there was a substantial rise in influenza and a surge in the number of cases after the COVID-19 pandemic period. The year 2023 will had the most influenza cases (40,785). The peak incidence of influenza changes in 2022, from July to October, and in 2023, from February to April and from October to December. During the post-pandemic period, the proportion of new-borns and young children among influenza patients decreased, while the proportion of school-age children increased significantly, and the proportion of influenza patients hospitalized and the proportion of ICU admissions decreased.
conclusionInfluenza showed low-level epidemiologic status during the COVID-19 pandemic. In the post-pandemic period, there is a large increase in influenza incidence, with a double peak in influenza incidence. The proportion of school-age children with influenza has also increased. As a result, we recommend that influenza vaccination for key populations, particularly school-age children, be completed by October of each year in Henan Province, and that the government and schools increase education about nonpharmacological influenza prevention approaches.
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