In itinere infections covertly undermine localized epidemic control in metapopulations.

IF 2.7 2区 数学 Q1 MATHEMATICS, APPLIED
Chaos Pub Date : 2025-05-01 DOI:10.1063/5.0275094
Francesca Dilisante, Pablo Valgañón, David Soriano-Paños, Jesús Gómez-Gardeñes
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引用次数: 0

Abstract

Metapopulation models have traditionally assessed epidemic dynamics by emphasizing local (in situ) interactions within defined subpopulations, often neglecting transmission occurring during mobility phases (in itinere). Here, we extend the Movement-Interaction-Return metapopulation framework to explicitly include contagions acquired during transit, considering agents traveling along shared transportation networks. We reveal that incorporating in itinere contagion entails a notable reduction of the epidemic threshold and a pronounced delocalization of the epidemic trajectory, particularly significant in early-stage outbreaks.

初期感染暗中破坏局部人群的流行病控制。
传统上,元种群模型通过强调界定的亚种群内部的局部(原位)相互作用来评估流行病动态,往往忽略了在流动阶段(初始阶段)发生的传播。在这里,我们扩展了移动-交互-返回元人口框架,明确地包括在运输过程中获得的传染,考虑到沿共享交通网络旅行的代理人。我们发现,纳入初期传染需要显著降低流行阈值和流行轨迹的明显脱域,特别是在早期爆发阶段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Chaos
Chaos 物理-物理:数学物理
CiteScore
5.20
自引率
13.80%
发文量
448
审稿时长
2.3 months
期刊介绍: Chaos: An Interdisciplinary Journal of Nonlinear Science is a peer-reviewed journal devoted to increasing the understanding of nonlinear phenomena and describing the manifestations in a manner comprehensible to researchers from a broad spectrum of disciplines.
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