Figure 4
From: Patterns of between-farm contacts via professionals in Sweden

Geographic area travelled by Swedish artificial inseminators, per week. Travel area of ten Swedish artificial inseminators employed by two different companies in 2012 and 2013, scale 1: 7 500 000. Time periods depicted: 8 - 14 October, 2012 or 8 - 14 November, 2012: olive green; 7 -13 January, 2013: black; 8 - 14 April: light green; 8 - 14 July, 2013: dark green.