Suppressing epidemic spreading in multiplex networks with social-support
Suppressing epidemic spreading in multiplex networks with social-support
复制标题
通过社会支持抑制多重网络中的流行病传播
DOI：
10.1088/1367-2630/aa9cda
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发表时间：
2018-01-05
影响因子：
3.3
通讯作者：
Braunstein, Lidia A.
中科院分区：
文献类型：
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作者：
Chen, Xiaolong;Wang, Ruijie;Braunstein, Lidia A.
尽管抑制疾病传播通常是通过投资公共资源来实现的，但在现实世界中，只有一小部分人在疫情爆发时能够获得政府援助，大多数人必须依赖家人或朋友的资源。当受感染节点的恢复取决于社会层中健康邻居的资源时，我们研究了社会接触多重网络中疾病传播的动态。我们研究程度异质性如何影响传播动态。通过理论分析和模拟，我们发现程度异质性促进了疾病传播。感染密度的相变是混合的，在第一个入侵阈值处从零平滑增加到有限的小值，然后在第二个入侵阈值处突然跳跃。我们还发现感染密度转变中存在滞后环。我们进一步研究两层之间边缘的重叠如何影响扩散动态。我们发现，当重叠量小于临界值时，相变是混合的，并且存在磁滞回线，否则相变是连续的，磁滞回线消失。此外，当传输率低于第一入侵阈值时，边缘重叠允许流行病爆发，但当传输率高于第一入侵阈值时，边缘重叠会抑制任何爆炸性转变。
Although suppressing the spread of a disease is usually achieved by investing in public resources, in the real world only a small percentage of the population have access to government assistance when there is an outbreak, and most must rely on resources from family or friends. We study the dynamics of disease spreading in social-contact multiplex networks when the recovery of infected nodes depends on resources from healthy neighbors in the social layer. We investigate how degree heterogeneity affects the spreading dynamics. Using theoretical analysis and simulations we find that degree heterogeneity promotes disease spreading. The phase transition of the infected density is hybrid and increases smoothly from zero to a finite small value at the first invasion threshold and then suddenly jumps at the second invasion threshold. We also find a hysteresis loop in the transition of the infected density. We further investigate how an overlap in the edges between two layers affects the spreading dynamics. We find that when the amount of overlap is smaller than a critical value the phase transition is hybrid and there is a hysteresis loop, otherwise the phase transition is continuous and the hysteresis loop vanishes. In addition, the edge overlap allows an epidemic outbreak when the transmission rate is below the first invasion threshold, but suppresses any explosive transition when the transmission rate is above the first invasion threshold.