Retrospective Single-Center Study on the Epidemiological Characteristics of Influenza B Infections in Korea (2007–2024): Analysis of Sex, Age, and Seasonal Patterns Article Swipe
Jiali Han
,
Yoo Na Chung
,
Jae Kyung Kim
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/microorganisms13051141
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/microorganisms13051141
Influenza B, a globally prevalent respiratory virus, particularly affects children, the elderly, and individuals with chronic diseases. This retrospective single-center study analyzed long-term epidemiological trends using 23,284 PCR test results from Dankook University Hospital, Cheonan-si, Republic of Korea, from 2007 to 2024. The data included inpatients and outpatients who presented with respiratory symptoms and underwent multiplex PCR testing. Unlike previous studies focusing on short-term outbreaks, this study examines extended trends and emerging seasonal patterns. Positivity rates were statistically analyzed by year, season, sex, age group, and the impact of COVID-19 (2020–2022). Significant annual differences (p < 0.001) occurred, with peaks in 2012 and 2018 and a sharp decline during 2020–2022. Children exhibited the highest positivity rate (2.40%), significantly higher than that of adults (2.24%) and the elderly (1.79%) (p < 0.05). Infections peaked in the winter (2.98%) and spring (3.95%), contrary to the belief that Influenza B peaks in winter only. Females had a higher positivity rate (2.13%) than males (1.70%) (p = 0.017). These findings provide novel insights into Influenza B epidemiology, emphasizing the need for prevention strategies beyond winter. The secondary spring peak suggests extending vaccination to early spring may improve influenza control, particularly among high-risk groups.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/microorganisms13051141
- https://www.mdpi.com/2076-2607/13/5/1141/pdf?version=1747381034
- OA Status
- gold
- Cited By
- 1
- References
- 29
- Related Works
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- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4410445673Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/microorganisms13051141Digital Object Identifier
- Title
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Retrospective Single-Center Study on the Epidemiological Characteristics of Influenza B Infections in Korea (2007–2024): Analysis of Sex, Age, and Seasonal PatternsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-05-16Full publication date if available
- Authors
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Jiali Han, Yoo Na Chung, Jae Kyung KimList of authors in order
- Landing page
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https://doi.org/10.3390/microorganisms13051141Publisher landing page
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https://www.mdpi.com/2076-2607/13/5/1141/pdf?version=1747381034Direct link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2076-2607/13/5/1141/pdf?version=1747381034Direct OA link when available
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Epidemiology, Center (category theory), Demography, Single Center, Medicine, Virology, Internal medicine, Sociology, Crystallography, ChemistryTop concepts (fields/topics) attached by OpenAlex
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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