1. Norwegian University of Life Sciences; Faculty of Veterinary Medicine, Institute for Production Animal Clinical Medicine, Section for Small Ruminants, 4325 Sandnes; Norway
2. Biosecurity Tasmania, Department for Primary Industries, Parks, Water and Environment, Tasmanian Government; Launceston Tasmania
3. Animal Health Australia; Braddon Australia Capital Territory; Australia
4. University of Sydney, Faculty of Veterinary Science; Camden New South Wales Australia