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Influence of layer-layer connection strength on the fraction of the infected population for different resource amounts: (a,b) ρ1 vs γ1, where (a) γ2 = 0.08 and (b) γ2 = 0.2 are fixed; (c,d) ρ2 vs γ1, where (c) γ2 = 0.08 and (d) γ2 = 0.2 are fixed. The other parameter values are set as ρ1(0) = ρ2(0) = 0.1, k1 = k2 = 30, and β1 = β2 = 0.02.
