1. School of Veterinary Science, The University of Queensland, Gatton campus, Gatton, Queensland, Australia, 4343
2. Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile, 5090000
3. California Animal Health and Food Safety Laboratory, University of California–Davis, Davis, California, USA, 92408
4. California Animal Health and Food Safety Laboratory, University of California–Davis, San Bernardino, California, USA, 95616