Before revision:  This observation allows us to quantify the time needed to "switch off " the country mobility (one week) and the time required to bring the net reproduction number below  1 (one week). A reasonably simple regression model provides evidence that the net reproduction number is correlated with a region's incoming, outgoing and internal mobility. We also find a strong relationship between the number of days above the epidemic threshold before the mobility flows reduce significantly as an effect of lockdowns, and the total number of confirmed SARS-CoV-2 infections per 100k inhabitants , thus indirectly showing the effectiveness of the lockdown and the other non-pharmaceutical interventions in the containment of the contagion .
After revision:  This observation allows us to quantify the time needed to "switch off " the country mobility (one week) and the time required to bring the net reproduction number below 1 is about one week. Moreover, we observe a strong relationship between the number of days above the epidemic threshold before the mobility flows reduce significantly as an effect of lockdowns, and the total number of confirmed SARS-CoV-2 infections per 100k inhabitants , thus indirectly showing the effectiveness of the lockdown and the other non-pharmaceutical interventions in the containment of the contagion .