Coupled awareness-epidemic spreading with the consideration of self-isolation behavior

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Physica Scripta Pub Date : 2024-09-15 DOI:10.1088/1402-4896/ad7409
Jiajun Xian, Teng Wang, Wei Zhang, Kunwei Chen, Nan Meng, Jiawen Sun, Dan Yang, Ming Liu, Jinlin Ye and Wei Wang
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Abstract

Epidemic transmission and the associated awareness diffusion are fundamentally interactive. There has been a burgeoning interest in exploring the coupled epidemic-awareness dynamic. However, current research predominantly focuses on self-protection behavior stimulated by awareness, paying less attention to self-isolation behavior. Given the constraints of government-mandated quarantine measures, spontaneous self-isolation actions assume greater significance in the long-term response to epidemics. In response, we propose a coupled awareness-epidemic spreading model with the consideration of self-isolation behavior and subsequently employ a Micro Markov Chain Approach to analyze the model. Extensive experiments show that self-isolation behavior can effectively raise the epidemic threshold and reduce the final outbreak scale. Notably, in multiplex networks with positive inter-layer correlation, the inhibitory effect is the greatest. Moreover, there exists a metacritical point, only when the awareness diffusion probability exceeds the critical value of this point, the epidemic threshold will increase with the increase of awareness diffusion probability. In addition, the growth of the average degree of the virtual-contact layer can reduce the value of this metacritical point. This research emphasizes the significant role of self-isolation behavior in curbing epidemic transmission, providing valuable perspectives for epidemic prevention through the interplay of awareness and epidemic spreading.
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认识--流行病传播耦合,考虑自我隔离行为
流行病的传播和相关意识的扩散从根本上说是互动的。人们对探索流行病与意识的耦合动态兴趣日渐浓厚。然而,目前的研究主要集中于由意识激发的自我保护行为,而较少关注自我隔离行为。鉴于政府强制隔离措施的限制,自发的自我隔离行为在流行病的长期应对中具有更重要的意义。为此,我们提出了一个考虑到自我隔离行为的认知-疫情传播耦合模型,并随后采用微马尔可夫链方法对该模型进行了分析。大量实验表明,自我隔离行为能有效提高流行阈值,降低最终爆发规模。值得注意的是,在层间正相关的多重网络中,抑制作用最大。而且,存在一个元临界点,只有当意识扩散概率超过该临界点的临界值时,疫情阈值才会随着意识扩散概率的增加而提高。此外,虚拟接触层平均程度的增长也会降低这个元临界点的值。这项研究强调了自我隔离行为在遏制疫情传播中的重要作用,为通过意识与疫情扩散的相互作用进行防疫提供了有价值的视角。
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来源期刊
Physica Scripta
Physica Scripta 物理-物理:综合
CiteScore
3.70
自引率
3.40%
发文量
782
审稿时长
4.5 months
期刊介绍: Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.
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