Figure 5

Epidemic sizes in a scalefree network. We look at epidemics in a truncated scale free network with 10⁶ nodes having minimum degree 2 and maximum degree 954 and each degree k assigned with probability proportional to \(k^{-2}\). This yields an average degree of approximately 10. Epidemics exist even at very small τ, and \(\mathscr {R}_{0}^{p}\) is significantly larger than in the other networks. Using the heterogeneous \(\mathscr {R}_{0}^{p}\) all curves collapse on a universal curve. The parameters, mean and variance of the distributions are given in Table 1