Worst-optimal difference for 75% vaccination and low time delay, expressed relative to the optimal mean final size.

The difference in stochastic mean final epidemic size 〈E〉 between worst-case and optimal protocols, expressed as the fraction of the optimal 〈E〉, is plotted as a function of time delay τ ≤ 20 days and coupling f_AB for the case of 75% vaccination, since the most significant worst-optimal differences occur for large amounts of vaccination. The remaining parameters are the same as in Fig 7.