To exclude from our analysis nodes that in the considered time interval are far away from the emergency location
(the furthest are roughly 100 km distant), in the following two figures we limit our attention to the infection rate for the
target areas. With regard to the smaller area (Fig. 5-c), we have that, at the beginning of the alarm spread, the infection rates
increase smoothly, while after ten minutes all the curves start exhibiting a steep slope. Although less evident, this behavior
is still present in the results for the larger area (Fig. 5-d). With reference to the smaller target area, the fraction of infected
nodes is remarkable when a significant amount of nodes cooperate in alarm spreading, reaching after 30 min on average
50% of infected nodes when half of the nodes are active and a value greater than 70% in the most favorable case. In most
cases, rates are roughly halved for the larger target area.