Figure 2

Study area, population and bTB epidemiological data. A Study area and subareas delimited by high traffic roads and rivers larger than 50 m (bold: subareas where the 11 genotypes of M. bovis were first detected, italic: other areas of > 30 km²). B Spatial density of farms and of clusters of badger setts (farms/clusters per km²). C Average yearly number of M. bovis detected infected farms and sett clusters in 2007–2011 (control protocol in farms based on total slaughter, no surveillance in badgers), 2012–2015 (reinforcement of surveillance in farms, beginning of surveillance in badgers), and in 2016–2019 (introduction of a test-and-cull protocol for bTB surveillance in farms).