从2005/06年到2016/17年,中国流感流行病的快速衰老:基于人口的研究
Weibo Tang1, Hao Lei1, Nan Zhang2
1School of Public Health, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, PR China.
Infectious Disease Modelling
|March 3, 2025
概括
中国的流感流行病正在迅速衰老,老年人越来越受到影响. 预计到2050年,这种趋势将大大增加流感相关的死亡人数,这凸显了对老年人疫苗接种的必要性.
科学领域:
- 流行病学 流行病学
- 老年学是指老年学的学科.
- 公共卫生 公共卫生
背景情况:
- 中国面临着人口快速老龄化,这增加了老年人对流感和相关死亡率的脆弱性.
- 了解流感流行病的衰老模式对于准确估计疾病负担至关重要.
研究的目的:
- 量化中国流感流行病的衰老趋势.
- 分析随着时间的推移流感病例的人口结构的变化.
主要方法:
- 利用来自中国的每周流感监测数据,涵盖2005/06年至2016/17年.
- 通过追踪平均年龄和65岁以上的个体在类似流感疾病 (ILI) 和确诊流感病例中的比例来量化流行病衰老.
主要成果:
- ILI和流感病例的平均年龄比一般人口的老龄化速度快得多.
- 在65岁及以上的人群中,流感病例的比例从0.5%上升到4.0%.
- 流感B/Yamagata表现出最快的衰老,而中国南部的衰老率高于中国北部.
结论:
- 预计到2050年,中国流感相关的呼吸道死亡人数将增加2.5倍.
- 这些发现强调了针对中国老年人群的流感疫苗接种计划的重要性.
相关概念视频
Viral Mutations
32.1K
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
32.1K
Viral Recombination
23.2K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.2K
Steps in Outbreak Investigation
102
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
102
Lung Capacity
49.1K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
49.1K


