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March 14, 2026Influenza and Other Respiratory Viruses1 citationsOpen Access

Influenza Vaccine Effectiveness Against Influenza A(H1N1)pdm09‐Associated Hospitalizations With SARI in Beijing, China, in the 2024–2025 Season

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CMChunna MaYSYing SunJMJiaxin Ma

Key Points

  • The study aims to evaluate the effectiveness of the influenza vaccine against H1N1-associated hospitalizations in Beijing.
  • Analyzed influenza vaccine effectiveness during the 2024-2025 season in Beijing
  • Assessed effectiveness among different age groups including children, younger adults, and the elderly
  • Considered the impact of vaccination strategies on hospitalizations
  • Overall vaccine effectiveness against A(H1N1)pdm09-associated hospitalizations was suboptimal
  • Moderate effectiveness noted in children and younger adults
  • Limited effectiveness observed in the elderly, indicating a need for improved strategies

Abstract

During the 2024-2025 season in Beijing, the overall VE against A(H1N1)pdm09-associated SARI hospitalizations was suboptimal. However, moderate VE was observed among children and younger adults, while limited effectiveness was seen in the elderly. Optimizing influenza vaccination strategies, including the introduction of high-dose or adjuvanted vaccines to enhance immune response in older adults, is crucial to alleviate influenza-associated hospitalizations.

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Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/69b4b9db18185d8a39801efchttps://doi.org/10.1111/irv.70248
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