社区连接对流行病传播过程的影响
Zhongshe Gao1, Ziyu Gu2, Lixin Yang2
1School of Mathematics and Statistics, Tianshui Normal University, Tianshui 741000, China.
Entropy (Basel, Switzerland)
|June 28, 2023
概括
社区结构影响传染病的传播. 增加社区力量减少了疾病传播,但提高了当地的感染密度,可能导致弱连接网络的特有疾病.
科学领域:
- 流行病学 流行病学
- 网络科学 网络科学
- 数学建模的数学建模
背景情况:
- 社交网络展示了社区结构,影响了疾病传播动态.
- 了解这些结构对于有效的公共卫生干预至关重要.
研究的目的:
- 研究社区结构对传染病传播的影响.
- 开发和分析一个社区网络SIRS模型.
主要方法:
- 提出了一个社区网络模型,包含连接速率和边缘数.
- 使用平均场理论构建了一个易感-感染-恢复-易感 (SIRS) 传输模型.
- 使用下一代矩阵方法计算了基本的复制数.
主要成果:
- 社区连接率和边缘数量显著影响疾病传播.
- 增加社区力量减少了基本的繁殖数,但增加了当地的感染密度.
- 弱小的社区力量可以导致本土传染病.
结论:
- 控制社区间接触频率和范围是制疾病爆发的关键.
- 这项研究为网络人口中预防和控制传染病提供了理论框架.
相关概念视频
Causality in Epidemiology
500
Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
500
Steps in Outbreak Investigation
155
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:
155
Infection
8.3K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
8.3K
Introduction to Epidemiology
805
Epidemiology, known as the cornerstone of public health, involves studying the distribution and determinants of health-related events in defined populations and applying these insights to control health issues. This is essential for understanding how diseases spread, identifying populations at greater risk, and implementing measures to control or prevent outbreaks. Epidemiology addresses not only infectious diseases but also non-communicable conditions like cancer and cardiovascular disease,...
805
Gene Flow
35.3K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.3K
Group Polarization
34.4K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
34.4K


