Fig. 4: Distribution of the numerically derived individual and global risk of infection for the venue with hybrid ventilation (HVV) with displacement ventilation in the stalls and unventilated balconies.
a, b Numerically derived infection risk plots for the emitter positions R8S21(I), R2S15 (II) and 1RR2S21 (III) for the silent passive emitter (a) and the high emitter case (90th percentile; b) are shown. The individual risk of infection is plotted for each seat, except for the red shaded positions, as these do not represent seats in the audience. The sum of risks for each venue and emitter position as well as the number of spectators with the acceptable risk of infection Racc > 1% are indicated above the plots. The positions of the stalls, 1st balcony (balc.) and 2nd balcony are indicated in the graphs.
