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. 2014 Feb 19;114(3):276–284. doi: 10.1016/j.prevetmed.2014.02.005

Fig. 2.

Fig. 2

Geographic location of the primary study location (star) and of 26 positive and 11 additional negative canine facility surveillance locations. Positive sites are black. Negative sites are open. Circles represent open canine facility designs. Squares represent closed canine facility designs. Open triangles represent 4 non-canine, livestock and poultry facility negative field controls.