1. Department of Production Animal Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
2. Department of Veterinary Diagnostic and Production Animal Medicine; Iowa State University College of Veterinary Medicine; Ames IA USA
3. Department of Veterinary Microbiology and Preventative Medicine; Iowa State University College of Veterinary Medicine; Ames IA USA
4. Department of Infection Biology; Institute of Veterinary Science; University of Liverpool; Liverpool UK
5. BIOEPAR; INRA, Oniris; Nantes France