Fig. 4: Impact of mobility interventions on the epidemic threshold for cities in the United States.
From: Interplay between population density and mobility in determining the spread of epidemics in cities
The impact is quantified with violin plots representing the distribution for the ratio between the normalized threshold after each intervention, \({\tilde{\lambda }}_{\,{{{\rm c}}}}^{{{{\rm MOD}}}\,}\) and the normalized threshold of the original mobility network \({\tilde{\lambda }}_{{{\mbox{c}}}}\). The dots inside each violin plot shows the mean of each distribution whereas the red dotted line shows the expected value of this ratio in absence of intervention. Here, S and H refer to suburbs and hotspots respectively, and S ↛ H represents the restriction of flow from suburbs to hotspots while keeping all other flows the same.
