Fig. 5.

Dynamics of SSEs. Risk evolves with time as a function of the behavior of the population and policies in place. (A and B) Risk posed by each category per week, defined using the corresponding map below. As a reference, the gray area on top shows the estimated weekly incidence. (C and D) The x axis represents the fraction of total infections that are associated with each category, while the y axis accounts for the share of those infections that can be attributed to SSEs in each category. Note that the fraction of infections is normalized over all the infections produced in all the social settings throughout the whole period. This defines a continuous-risk map in which places with few infections and low contribution from SSEs will be situated on the bottom left corner. Places where the number of infections is high but the contribution from SSEs is low are situated in the bottom right corner. Conversely, places with large contribution from SSEs but a low amount of infections are situated in the top left corner. Finally, places with both a large number of infections and an important contribution from SSEs are situated in the top right corner. The color associated to each tile in A and B is extracted from the position of the point in the plane defined in C and D. The points in C and D show the evolution of the position of the categories arts/museum and grocery for each week, with the arrows indicating the time evolution.