1. State Veterinary Service; DEFRA; IA Page Street London SWIP 4PQ
2. Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine; University of London; Keppel Street London WC1E 7HT
3. State Veterinary Service; DEFRA; Windsor House, Cornwall Road, Harrogate North Yorkshire HGI 2PW
4. State Veterinary Service; DEFRA; Animal Health Division; Hadrian House, Wavell Drive, Rosehill Industrial Estate Carlisle CAI 2TB
5. State Veterinary Service; DEFRA; Animal Health Division; Beeches Road Chelmsford CM1 2RU
6. Epidemiology Department; Veterinary Laboratories Agency-Weybridge; New Haw, Addlestone Surrey KT15 3NB
7. State Veterinary Service; DEFRA; Animal Health Office; Government Buildings, Kenton Bar Newcastle upon Tyne NEI 2YA