Figure 5.

Average global attack rate as a function of ρ and R₀ in homogeneous subpopulation networks. The figure codes with color the average fraction of individuals infected by the outbreak in the space of ρ and R₀. For smaller values of R₀ larger values of ρ are needed for the infection to spread at the global scale. Once ρ is well below or above its critical value its precise value does not affect the attack rate. In order to vary ρ, we have fixed the return rate τ at 1/day and changed the value of the commuting rate σ. Networks are made of V = 10⁴ subpopulations, each of which accommodates a degree-dependent population of N̄_k = N̄k/〈k〉 individuals with N̄ = 104. The infectious period is set to μ⁻¹ = 3 day.