Issue |
Europhys. Lett.
Volume 72, Number 2, October 2005
|
|
---|---|---|
Page(s) | 315 - 321 | |
Section | Interdisciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i2004-10550-5 | |
Published online | 07 September 2005 |
Epidemic spreading in community networks
1
Department of Physics, East China Normal University - Shanghai 200062, PRC
2
Department of Physics, Center for Nonlinear Studies, and the Beijing-Hong Kong-Singapore Joint Center for Nonlinear and Complex Systems (Hong Kong Branch) Hong Kong Baptist University, Hong Kong, PRC
3
Department of Physics, University of Houston - Houston, TX 77204-5005, USA
Received:
4
November
2004
Accepted:
5
August
2005
Social networks have the structure of communities. To understand how the community structure affects epidemic spreading, we present a simplified model of community network, and investigate the epidemic propagation in this model. We find that, compared to the random network, the community network has a broader degree distribution, a smaller threshold of epidemic outbreak, and more prevalence to keep the outbreak endemic. The formulae of epidemic threshold are given and confirmed by numerical simulations.
PACS: 89.75.Hc – Networks and genealogical trees / 87.23.Ge – Dynamics of social systems
© EDP Sciences, 2005
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