3.3.2 In-epidemic EGP. The results above were obtained assuming we can partition the network before the start of each epidemic. Since it is more realistic to assume we intervene only after an outbreak has been detected, we also investigated the effectiveness of the EGP intervention enforced at different times during the epidemic (Figure 5b ). Our simulation shows that the strategy is still very effective even when it is applied as late as 10 time steps (roughly 30 days) after the start, just 2 time steps away before the peak. The peak infection rate is reduced by about 20% and total number of cases by 12%, as compared to the unmitigated case. Unfortunately, the time of maximum infection rate is not delayed when EGP is applied at t = 10, and is only delayed by about one time step when intervention is applied at t = 2 and t = 6 time steps after the start.