Affiliation: | (1) Faculty of Veterinary Medicine, Department of Production Animal Medicine, University of Helsinki, POB 66, FIN 00014 Helsinki, Finland;(2) A-Farmers Ltd, POB 910, FIN 60061 Atria, Finland;(3) Faculty of Agriculture and Forestry, Department of Applied Chemistry and Microbiology, University of Helsinki, Helsinki, Finland;(4) Faculty of Veterinary Medicine, Department of Basic Veterinary Sciences, University of Helsinki, POB 56, FIN 00014 Helsinki, Finland;(5) Mycobacterial Reference Laboratory, The National Institute for Health and Welfare, Kiinanmyllynkatu 13, FIN 20520 Turku, Finland;(6) Lieto municipality, Po box 24, FIN 21421 Lieto, Finland |