Mycobacterium bovis isolates from cattle by spoligotype pattern in Sicily.

Map of Sicily. Solid grey lines indicate province boundaries. Dots represent individual Mycobacterium bovis isolates from cattle by spoligotype pattern. Dots in squares represent isolates with unknown geographical origin. Only the frequent patterns are represented. The area of the Nebrodi park, where free-ranging pigs contribute to M. bovis maintenance is shadowed. Cases are more frequent close to Nebrodi and close to Hyblaean Mountains and Ragusa (in the South) where there are high numbers of dairy cattle.