Fig. 3

Scenarios considered: a exemplar“younger” population demographics, b “older” population demographics (see Appendix A of the Supplementary Material 1 for the construction of these exemplar populations), c 20% vaccination coverage, d 50% vaccination coverage, e 80% vaccination coverage, where the coverage value corresponds to primary vaccination coverage by time \(t=364\). Note that c, d, e detail the proportions in the younger population; the proportions in the older population are similar