Tuberculosis-positive wild boar in Atlantic Spain and the Mycobacterium bovis spoligotypes identified. Shaded areas represent hunting areas where wild boars were sampled. Striped areas represent hunting areas where at least one wild boar was found positive for TB. Dark shaded areas represent hunting areas included in the cluster with higher risk of TB. Different forms represent the spoligotypes identified. Spatial cluster analysis revealed 3 significant clusters (A, B and C; relative risk 7.87, 5.98, 10.71; P < 0.001, 0.019, 0.013, respectively).