Prevalence and spatial distribution of bovine tuberculosis in Bahia, Brazil - Avila, L. N; Perez, A. M; Gonçalves, V. S. P; Ferreira Neto, José Soares; Ferreira, Fernando; Telles, Evelise Oliveira; Dias, Ricardo Augusto; Amaku, Marcos (International Symposium on Veterinary Epidemiology and Economics, 2012)