1. Animal Health and Veterinary Laboratories Agency, Polwhele, Truro, Cornwall TR4 9AD, UK
2. Current address: Scottish Marine Animal Strandings Scheme, SAC Veterinary Services, Stratherrick Road, Inverness IV2 4JZ, UK
3. Current address: Environment and Sustainability Institute, University of Exeter Cornwall Campus, Penryn, Cornwall TR10 9EZ, UK
4. Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, New Haw, Addlestone, Surrey KT15 3NB, UK
5. Cetacean Strandings Investigation Programme (CSIP), Institute of Zoology, Zoological Society of London, Regents Park, London NW1 4RY, UK