Figure 1. Posterior distributions of the basic reproduction number and vaccine efficacy (A) and vaccination coverages and attack rates (B) when assuming common parameters across schools (baseline scenario).

The median of the basic reproduction number is 2.49 (95% CrI: 2.36–2.63) and the median of vaccine efficacy is 0.933 (95CrI: 0.908–0.954). The estimated critical vaccination coverage is 0.642 (95% CrI: 0.617–0.666).