Disease Spreading in Structured Scale-Free Networks

Details Disease Spreading in Structured Scale-Free Networks Disease Spreading in Structured Scale-Free Networks

2002-10-17

arxiv.org/abs/cond-mat/0210362v1

Eur. Phys. J. B 31, 265 (2003)

Physics

Condensed Matter

Statistical Mechanics

7 pages, 6 figures. EPJ style

Scientific paper

10.1140/epjb/e2003-00031-9

We study the spreading of a disease on top of structured scale-free networks recently introduced. By means of numerical simulations we analyze the SIS and the SIR models. Our results show that when the connectivity fluctuations of the network are unbounded whether the epidemic threshold exists strongly depends on the initial density of infected individuals and the type of epidemiological model considered. Analytical arguments are provided in order to account for the observed behavior. We conclude that the peculiar topological features of this network and the absence of small-world properties determine the dynamics of epidemic spreading.

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