Distance graphs (D) of the social contact networks analyzed, with respective references.

|X|: number of nodes; (|di>j|): number of finite distance edges; τ(D) relative size of the metric backbone; σ(D): edge redundancy. Values of τ, and σ are shown as percentages (%). For the Exhibit networks, values of |X|, (|di>j|), τ and σ denote the mean ± standard deviation of the networks computed for each of the 69 days for which data were gathered. See Section 4.1 for additional details and a description of the networks.