Figure 3

Transmission does not necessarily shape the distribution of infected individuals. Two systems, one with random transmission (left), where the transmission rate at each node is drawn from a probability distribution, and one with the same transmission at all patches (right), equal to the mean of this distribution. The network has \(N=50\) nodes and the \(\beta _{i}\) are drawn from a random distribution of mean \(\mu _{\beta } = 0.6\) and standard deviation \(\sigma _{\beta } = 0.6\). We present a schematic representation for the network (top) and the evolution of the number of infected individuals at the patches over time (bottom), colored according to the local transmission rate. Even though the transmission landscape is very different for both examples the distribution of infected individuals over the network is quite similar. In particular, the case with random transmission shows a network with zero transmission in some nodes (in yellow) in which there is an initial increase of infected individuals.