Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2010-04-14
New Journal of Physics, 12, 093009 (2010)
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 figures
Scientific paper
10.1088/1367-2630/12/9/093009
It is often useful to represent the infectious dynamics of mobile agents by metapopulation models. In such a model, metapopulations form a static network, and individuals migrate from one metapopulation to another. It is known that heterogeneous degree distributions of metapopulation networks decrease the epidemic threshold above which epidemic spreads can occur. We investigate the combined effect of heterogeneous degree distributions and diffusion on epidemics in metapopulation networks. We show that for arbitrary heterogeneous networks, diffusion suppresses epidemics in the sense of an increase in the epidemic threshold. On the other hand, some diffusion rates are needed to elicit epidemic spreads on a global scale. As a result of these opposing effects of diffusion, epidemic spreading near the epidemic threshold is the most pronounced at an intermediate diffusion rate. The result that diffusion can suppress epidemics contrasts with that for diffusive SIS dynamics and its variants when individuals are fixed at nodes on static networks.
No associations
LandOfFree
Effects of diffusion rates on epidemic spreads in metapopulation networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effects of diffusion rates on epidemic spreads in metapopulation networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of diffusion rates on epidemic spreads in metapopulation networks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527671