| Issue |
EPL
Volume 82, Number 3, May 2008
|
|
|---|---|---|
| Article Number | 38002 | |
| Number of page(s) | 4 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/82/38002 | |
| Published online | 16 April 2008 | |
Disease spreading in populations of moving agents
1
Dipartimento di Ingegneria Elettrica, Elettronica e dei Sistemi, Università degli Studi di Catania Viale A. Doria 6, 95125 Catania, Italy, EU
2
Dipartimento di Fisica e Astronomia, Università di Catania and INFN, Sezione di Catania Via S. Sofia, 64, 95123 Catania, Italy, EU
Corresponding authors: arturo.buscarino@diees.unict.it lfortuna@diees.unict.it mfrasca@diees.unict.it vito.latora@ct.infn.it
Received:
10
December
2007
Accepted:
8
March
2008
We study the effect of motion on disease spreading in a system of random walkers which additionally perform long-distance jumps. A small percentage of jumps in the agent motion is sufficient to destroy the local correlations and to produce a large drop in the epidemic threshold, that we explain in terms of a mean-field approximation. This effect is similar to the crossover found in static small-world networks, and can be furthermore linked to the structural properties of the dynamical network of agent interactions.
PACS: 89.75.Hc – Networks and genealogical trees / 89.75.-k – Complex systems / 87.23.Ge – Dynamics of social systems
© EPLA, 2008
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