Fig. 4.

Number of HFMD cases in I₃ changes under different EV71 and bivalent vaccine coverage rates. A-E: 0, 10, 30, 50, 80% EV71 vaccine coverage combined with 0, 10, 30, 50, 80, 100% Bivalent vaccine coverage, respectively. I₃ indicates the number of EV71 or CVA16 HFMD $\left({\mathrm{I}}_{\mathrm{h}}^{\mathrm{ec}}\right)$ / only EV71- HFMD $\left({\mathrm{I}}_{\mathrm{h}}^{\mathrm{e}}\right)$, based on different types of vaccines