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Spatial correlations in SIR epidemic models

2005/05/17 by Henryk Fukś, Ryan Duchesne, Anna T. Lawniczak
Physics and Astronomy · #nlin.CG

paper · pdf

published as Proc. of WSEAS MATH 2005, Canun, Mexico, May 11-14, p. 108-113, ISBN 960-8457-20-3 · 6 pages, 4 figures

arxiv created 2005/05/17 · arxiv updated 2009/12/01

Abstract

We investigate the role of global mixing in epidemic processes. We first construct a simplified model of the SIR epidemic using a realistic population distribution. Using this model, we examine possible mechanisms for destruction of spatial correlations, in an attempt to produce correlation curves similar to those reported recently for real epidemiological data. We find that introduction of a long-range interaction destroys spatial correlations very easily if neighbourhood sizes are homogeneous. For inhomogeneous neighbourhoods, very strong long-range coupling is required to achieve a similar effect.

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