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Updated: Sep 9, 2025

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
Published on: November 10, 2023
Changing Epidemiological Pattern and Higher Disease Burden of Influenza in China, 2022 to 2025
Hairu Yu1, Qing Wang1, Boer Qi1
1School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Public Health Emergency Management Innovation Center, State Key Laboratory of Respiratory Health and Multimorbidity, Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College), Ministry of Education, Beijing, China.
Abstract:
Influenza activity peaks in southern (59.62%) and northern China (57.60%) during the 2022/2023 season reached the highest levels in the past 10 years. The 2023/2024 season witnessed a longer duration of the winter-spring epidemic weeks and a higher disease burden compared with previous high-epidemic years. The A(H3N2), A(H1N1)pdm09, and B/Victoria lineages alternated among the predominant circulating strains from the 2022/2023 season to the 2024/2025 season. After the 2022/2023 and 2023/2024 seasons of disruption and fluctuation, influenza in the 2024/2025 season has reverted to its previous epidemic pattern.
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