Velocity and Hierarchical Spread of Epidemic Outbreaks in Scale-Free Networks
Velocity and Hierarchical Spread of Epidemic Outbreaks in Scale-Free Networks
We study the effect of the connectivity pattern of complex networks on the propagation dynamics of epidemics. The growth time scale of outbreaks is inversely proportional to the network degree fluctuations, signaling that epidemics spread almost instantaneously in networks with scale-free degree distributions. This feature is associated with an epidemic …