Fig. 3

Modular projection of the CDMX contact network. These networks are aggregates of the original contact network; the nodes in these networks represent a full module in the original contact network; these modules are connected to other modules if there are connections between their member nodes in the original contact network.If we consider the number of nodes that belongs to each module, each of these modules contains a fraction of the original nodes in the network (that is, a fraction of the population of the network). In these figures, we select roughly 20% of the contact network’s population using two different strategies: in the top panel, we select (highlighted in red) the six largest modules; whereas in the bottom panel, we select 33 modules with a smaller fraction of the population, such that the sum of these is again roughly 20% of the total contact network’s population.