You are viewing the site in preview mode

Skip to main content


Fig. 4 | BMC Infectious Diseases

Fig. 4

From: Tracking social contact networks with online respondent-driven detection: who recruits whom?

Fig. 4

Spatial recruitment and commuting network structure. a Peer recruitment within The Netherlands and (between) Belgium. Arrows indicate recruitment between provinces and circles recruitment within a province. b Commuting network: directions that participants daily commute to work or study. Arrows indicate commuting across provinces, and circles commuting within a province. Sizes of arrows and circles are weighted for the total number of recruitments/commuters, with darker colours/larger circles indicating higher proportions. The maps were created with a shapefile (.shp file) that was extracted from GADM, an online geographic database of global administrative areas that is freely available for academic and other non-commercial use [45]

Back to article page