where the exponents, p and q, are typically fitted to simulated data but are thought to capture the spatial arrangement of susceptible and infected nodes. Also, Kiss et al. [141] suggest Transmission rate to S k from I l ∝ k(l − 1)(S k )(I l ), (26) as a way of accounting for each infected "losing" an edge to its infectious parent. Finally, a very recent work [142] presents a dynamical system to capture epidemic dynamics on triangular configuration model networks; the relationship between this and other ODE approaches is likely to be an active topic for future work.