通过接触者追踪网络识别流行病的隐藏传播者
Shuhong Huang1,2, Jiachen Sun3, Ling Feng4,5
1School of Data and Computer Science, Sun Yat-sen University, Guangzhou, 510006, China.
Scientific reports
|July 19, 2023
概括
识别无症状的COVID-19传播者对于疫情控制至关重要. 这项研究提出了一个基于网络的框架,使用物理传播方程来准确检测隐藏的病毒载体,即使接触追踪数据有限.
科学领域:
- 流行病学 流行病学
- 网络科学 网络科学
- 传染病建模 传染病建模
背景情况:
- 全球COVID-19病例的激增凸显了无症状传播者的重大影响.
- 无症状的个体有助于持续传播,复杂化了疫情控制工作,尽管疫苗接种广泛.
- 新出现的病毒变种需要在检测感染个人的过程中不断改进,包括那些没有症状的人.
研究的目的:
- 开发一个理论框架来建模网络中的传染性状态转换.
- 创建一个有效的算法来识别COVID-19无症状携带者.
- 用物理分布方程来评估拟议方法的准确性.
主要方法:
- 提出了一个理论框架,以捕捉网络内的不同感染状态之间的过渡概率.
- 将框架扩展为用于识别无症状个体的高效算法.
- 利用物理传播方程来分析COVID-19传播动态.
主要成果:
- 拟议的算法准确识别了无症状的COVID-19传播者.
- 即使有不完整的合同追踪网络信息,也可以实现显著的准确性.
- 该框架展示了物理扩散方程在检测隐藏传播方面的有效性.
结论:
- 开发的框架提供了一种有效的方法来识别无症状的COVID-19传播者.
- 这种方法对疫情控制有价值,特别是在不完整的数据的情况下.
- 该方法可适应控制其他以无症状传播为特征的疾病.
相关概念视频
Steps in Outbreak Investigation
152
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:
152
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
Infection
8.1K
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...
8.1K
Causality in Epidemiology
483
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...
483
Single Nucleotide Polymorphisms-SNPs
15.3K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
15.3K
Transmission-based Precautions I: Contact, Enteric, and Droplets
3.7K
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
3.7K


