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

<p>The difference in stochastic mean final epidemic size 〈<i>E</i>〉 between worst-case and optimal protocols, expressed as the fraction of the optimal 〈<i>E</i>〉, is plotted as a function of time delay <i>τ</i> ≤ 20 days and coupling <i>f</i>_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 <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0152950#pone.0152950.g007" target="_blank">Fig 7</a>.