Fig. 2.
Base scenario for infection risks among spectators (no-prevention). Comparison of overall infection risks under five simulation conditions with different crude probabilities of a spectator being an infector (P0) (A). Comparison of infection risks among five categories of spectators obtained from simulations with P0 of 10−4 (B). A ratio of average infection risk to P0 corresponds to newly infected individuals per one infector entry into the stadium at the opening ceremony. Box-and-whisker plots represent the following percentiles: 2.5, 25, 50, 75, and 97.5. Closed circles represent average values (arithmetic mean). Monte Carlo simulations were performed with 1,000 iterations for each condition.