1. Scottish Marine Animal Strandings Scheme, Scotland's Rural College Veterinary Services, Drummondhill, Inverness, Scotland IV2 4JZ, UK;
2. World Organisation for Animal Health/Food and Agriculture Organization of the United Nations/World Health Organization Reference Laboratory for Brucellosis, Department of Bacteriology, Animal and Plant Health Agency, New Haw, Addlestone, Surrey KT15 3NB, UK;
3. Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Edinburgh, Scotland EH26 0PZ, UK;
4. Cetacean Research and Rescue Unit, 48 Seatown, Gardenstown, Banff, Aberdeenshire, Scotland AB45 3YQ, UK;