中国2022年至2025年的流行病学模式变化和更高的流感疾病负担
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.
Influenza and other respiratory viruses
|August 30, 2025
概括
在2022/2023年,中国的流感活动升至10年来的最高水平,而在2023/2024年,疫情持续时间和疾病负担增加. 2024/2025年季节呈现出流感前模式的回归.
科学领域:
- 流行病学
- 病毒学
背景情况:
- 中国的流感活动在2022/2023赛季达到前所未有的水平,南部和北部地区的高峰超过57%.
- 随后的2023/2024赛季经历了较长的冬季-春季流行病持续时间,疾病负担明显高于之前的高峰年份.
研究的目的:
- 分析最近疫情期间在中国流感病毒传播的趋势和模式.
- 描述流感的主要菌株及其时间动态.
- 评估2024年至2025年的典型流行病模式.
主要方法:
- 对流感监测数据的回顾性分析.
- 对流传的流感A ((H3N2),A ((H1N1) pdm09和B/维多利亚菌株进行监测.
- 多个季节的流行病持续时间和疾病负担的比较.
主要成果:
- 2022/2023年季节的流感活动达到创纪录的高度,在中国南部达到59.62%,在中国北部达到57.60%.
- 2023/2024年季节的特点是流行期较长,疾病负担增加.
- 在2022/2023年至2024/2025年间,流感A(H3N2),A(H1N1) pdm09和B/维多利亚的血统呈现出交替的主导地位.
结论:
- 近期在中国的流感季节显示出活动和菌株流行率的显著扰乱和波动.
- 2024/2025年季节表明,在最近的激增之前观察到的确定的流行病模式出现了回归.
- 持续监测对于理解和管理流感变化的动态至关重要.
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