Table 2.

Scaling exponents of the epidemic thresholds

Network	α*	α
2 < γF < 3	$\frac{1}{2}[(3-\gamma F)/(\gamma F-1)+(3-\gamma M)/(\gamma M-1)]$	(3 − γM)/(γM − 1)
γF > 3	$\frac{1}{2}(3-\gamma M)/(\gamma M-1)$	(3 − γM)/(γM − 1)

Scaling exponents, α and α*, of the epidemic thresholds, λ_c ∼ N_M^α and λ_c ∼ N_M^α*, obtained for the SIS model on unipartite networks and when a bipartite network is considered, respectively. The two situations considered (2 < γ_F < 3 and γ_F > 3) correspond to 2 < γ_M < 3.