Figure 3

Contact activity of central individuals in the proximity network. (a) Relative probability of physical contacts, compared to the distribution of the population average (grey area). Dark regions indicate weekends. (b) Heat maps showing the difference in the contact activity between the social core and the proximity driven for each hour in a week. The periods for working hours are surrounded by the grey frame. In all cases, the 10 most central individuals are considered, and results are aggregated over a four month period between February and May 2014 (inclusive). Hours of significant difference are marked by the white circles.