Epidemic spreading process in interconnected small-world networks.

<p>(a) illustrates the epidemic spreading pattern in network A. Initially, 16 nodes in the center of network A are infected. The rewiring probabilities are <i>p</i> = 0.1 ((1), (3)) and <i>p</i> = 1 ((2), (4)), and the infection rates are <i>λ</i> = 0.19 ((1), (2)) and <i>λ</i> = 0.24 ((3), (4)). (b) and (c) present the infection density <i>ρ</i>_<i>A</i> in network A as a function of time for two interconnected networks. Initially, 10% of the nodes in network A are randomly chosen to be infected. The infection rates are <i>λ</i> = 0.24 (b) and <i>λ</i> = 0.48 (c). The density of interconnection links is <i>q</i> = 1. The spatial length is <i>R</i> = 1. The network size is <i>N</i> = 10000. The results have been averaged over 100 realizations.