1. Sligo Regional Veterinary Laboratory, Department of Agriculture, Food and Marine, Doonally, Sligo, Ireland (Murray)
2. School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland (Cassidy, More, Clegg)
3. Central Veterinary Research Laboratory, Department of Agriculture, Food and Marine, Celbridge, Co. Kildare, Ireland (O’Neill, Sammin, Casey, Byrne, McElroy)
4. Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Dunsany, Grange, Co. Meath, Ireland (Earley)
5. Agri-food and Biosciences Institute, Veterinary Sciences Division, Stormont, Belfast, Northern Ireland (Ball, Bell)