4.4 Article

A Low-Dimensional Network Model for an SIS Epidemic: Analysis of the Super Compact Pairwise Model

期刊

BULLETIN OF MATHEMATICAL BIOLOGY
卷 83, 期 7, 页码 -

出版社

SPRINGER
DOI: 10.1007/s11538-021-00907-2

关键词

SIS epidemic; Pairwise model; Epidemic threshold; Endemic equilibrium

资金

  1. NSF [DMS - 1817124]

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This study examines a network-based model for simulating the spread of SIS-type diseases, analyzing its epidemiological characteristics, deriving the epidemic threshold and equilibrium point, and assessing the model's sensitivity to network parameters.
Network-based models of epidemic spread have become increasingly popular in recent decades. Despite a rich foundation of such models, few low-dimensional systems for modeling SIS-type diseases have been proposed that manage to capture the complex dynamics induced by the network structure. We analyze one recently introduced model and derive important epidemiological quantities for the system. We derive the epidemic threshold and analyze the bifurcation that occurs, and we use asymptotic techniques to derive an approximation for the endemic equilibrium when it exists. We consider the sensitivity of this approximation to network parameters, and the implications for disease control measures are found to be in line with the results of existing studies.

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