相关实验视频
Updated: Jul 23, 2025

07:57
A New Method for Inducing a Depression-Like Behavior in Rats
Published on: February 22, 2018
21.0K
在社交网络上风险感知的动态及其对疾病动态的影响
Meili Li1, Yuhan Ling1, Junling Ma2
1College of Science, Donghua University, Shanghai, 201620, China.
Infectious Disease Modelling
|July 13, 2023
概括
个人的风险感知会影响疾病的传播. 当信息传播速度比疾病快时,感知与现实相匹配;否则,它会滞后,影响疾病动态和控制策略.
科学领域:
- 流行病学 流行病学
- 网络科学 网络科学
- 行为科学 行为科学
背景情况:
- 个体行为显著影响疾病传播动态.
- 感染风险的感知是由社会沟通和网络互动所塑造的.
- 了解疾病传播和风险感知之间的相互作用对于公共卫生至关重要.
研究的目的:
- 在双层网络上模拟疾病传播和风险感知的结合动态.
- 研究信息和疾病传播的相对速度如何影响风险感知准确度.
- 分析由风险感知驱动的行为变化对疾病控制指标的影响.
主要方法:
- 利用一个双层随机网络模型,将社交和联系网络结合起来.
- 模拟疾病动态和信息传播过程.
- 分析了行为改变策略 (传播率降低,边缘突破) 对流行病学参数的影响.
主要成果:
- 与疾病传播相关的信息速度决定了风险感知的准确性.
- 当信息传播得更快时,风险感知与真正的疾病患病率趋同.
- 相似的速度导致滞后和降低风险感知,影响疾病峰值和最终尺寸.
- 行为变化可以降低传播率或隔离受感染的个体,对疾病指标产生不同的影响.
结论:
- 风险感知的准确性取决于与疾病传播相关的信息传播速度.
- 由风险感知引起的行为修改可以缓解流行病.
- 边缘突破在减少最终疾病大小方面更有效,而传播率的减少更好地控制了峰值发病率.
相关概念视频
Causality in Epidemiology
486
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...
486
Steps in Outbreak Investigation
153
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:
153
Models of Health Promotion and Illness Prevention II
1.6K
The person's health status fluctuates continually, varying from being in good health to becoming ill and returning to being healthy. To understand the concept of illness prevention, there are two models. First, the health-illness continuum model is a graphic representation of an individual's wellness. It states that a person is considered healthy in the absence of physical disease and the presence of good emotional health.
The agent-host-environment model states that disease results...
The agent-host-environment model states that disease results...
1.6K
Principles of Disease Surveillance
125
Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
125
Factors Affecting Illness
4.3K
When a person's physical, emotional, intellectual, social development or spiritual functioning is compromised, this deviation from a healthy normal state is called illness. Illness creates stress that in turn harms individuals. Irritation, anger, denial, hopelessness, and fear are behavioral and emotional changes an individual experiences in the phases of illness. A variety of factors influence a person's health and well-being.
For instance, risk factors are connected to illness,...
For instance, risk factors are connected to illness,...
4.3K
Factors Affecting the Risk of Infection
12.0K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.0K

