Synergy in spreading processes: from exploitative to explorative foraging strategies
Abstract
An epidemiological model which incorporates synergistic effects that allow the infectivity and/or susceptibility of hosts to be dependent on the number of infected neighbours is proposed. Constructive synergy induces an exploitative behaviour which results in a rapid invasion that infects a large number of hosts. Interfering synergy leads to a slower and sparser explorative foraging strategy that traverses larger distances by infecting fewer hosts. The model can be mapped to a dynamical bond-percolation with spatial correlations that affect the mechanism of spread but do not influence the critical behaviour of epidemics.
Cite
@article{arxiv.1106.0848,
title = {Synergy in spreading processes: from exploitative to explorative foraging strategies},
author = {Francisco J. Perez-Reche and Jonathan J. Ludlam and Sergei N. Taraskin and Christopher A. Gilligan},
journal= {arXiv preprint arXiv:1106.0848},
year = {2015}
}
Comments
16 pages, 15 figures. 4 pages for main text and 6 appendices published as supplemental material at http://link.aps.org/supplemental/10.1103/PhysRevLett.106.218701