Fig. 5
Number of HFMD cases in I2 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. I2 indicates the number of no EV71 or CVA16 HFMD \( \Big({\mathrm{I}}_{\mathrm{h}}^{-\mathrm{ec}} \)) / no EV71 HFMD \( \left({\mathrm{I}}_{\mathrm{h}}^{-\mathrm{e}}\right) \), based on different types of vaccine