Skip to main content
Fig. 2 | BMC Veterinary Research

Fig. 2

From: Use of a voluntary testing program to study the spatial epidemiology of Johne’s disease affecting dairy herds in Minnesota: a cross sectional study

Fig. 2

Spatial patterns of Johne’s disease status and the associated covariates. Points represent the location of study herds (n = 600). Panels (a, b, and c) illustrates the results of the Getis Ord Gi* local test where herds with high value of the variable next to herds with high values of the variable are represented in red (high-high clusters), herds with low value of the variable next to herds with low values of the variable represented in blue (low-low clusters), and no-matching pairs in yellow (high-low, or low-high values) [19, 20]. Covariates depicted in panels d though h include: (d) soil pH; (e) soil type/texture; (f) hydrologic soil type (i.e. runoff); (g) Agro-ecological characteristics; and (h) participants of the Voluntary Johne’s Herd Status Program for Cattle program (VJDHSP*). Maps depicted here were generated as part of the current study

Back to article page