Aspects of the collection sites of environmental samples.

<p>(A) Map of the Iberian Peninsula highlighting the location of the bTB-positive (black triangle) and presumed bTB-negative (white triangle) study areas; (B) detail of sites in the bTB-infected area where samples were collected (squares: rivers, circles: dams; triangles: feeding sites); images of sample collection sites: (C) small dam, (D) feeding site, (E) seasonal river, (F) wild boar roots; (G) red deer skeleton besides a small dam.