MLVA genotypes, indicated by coloured symbols, on 45 dairy farm location in the Netherlands. Dairy goat farms are indicated by circles, (non-dairy) sheep farms by triangles, petting zoos by squares, and cattle farms by stars. The proportion of MLVA genotypes on farms 20, 25 and 33, where more than one genotype was encountered, are indicated by pie charts.
de Bruin et al. BMC Veterinary Research 2012 8:165 doi:10.1186/1746-6148-8-165