1 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Department of Disease Control and Epidemiology, National Veterinary Institute, Uppsala SE 75 189, Sweden. Electronic address: fernanda.dorea@sva.se.
2 The Society for Veterinary Epidemiology and Preventive Medicine, UK; UMR IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France.
3 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Animal Health Ireland, Carrick-on-Shannon N41 WN27, Ireland.
4 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Norwegian Veterinary Institute, Ås, Norway; Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Liebefeld, Switzerland.
5 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Department of Population Health Sciences, Unit Farm Animal Health, Utrecht University, Utrecht, the Netherlands.
6 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Veterinary Epidemiology, Economics and Public Health Group, Royal Veterinary College, London, UK.
7 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Department of Animal Health, Behaviour and Welfare, Harper Adams University, Newport, Shropshire, TF10 8NB, United Kingdom.
8 The Society for Veterinary Epidemiology and Preventive Medicine, UK; Royal GD, Deventer, the Netherlands; Department of Population Health Sciences, Unit Farm Animal Health, Utrecht University, Utrecht, The Netherlands.