1 Head of Surveillance Intelligence Unit and Scanning Surveillance Programme, Animal and Plant Health Agency (APHA) Weybridge, Woodham Lane, New Haw, Addlestone, Surrey KT15 3NB, e-mail: Richard.Irvine@apha.gsi.gov.uk.
2 Veterinary Lead, Cattle Expert Group, Surveillance Intelligence Unit, APHA Lasswade, Pentlands Science Park, Bush Loan, Penicuik, Midlothian EH26 0PZ, e-mail: Gareth.Hateley@apha.gsi.gov.uk.
3 Veterinary Lead, Small Ruminant Expert Group, Surveillance Intelligence Unit, APHA Penrith Veterinary Investigation Centre, Merrythought, Calthwaite, Penrith, Cumbria CA11 9RR, e-mail: Amanda.Carson@apha.gsi.gov.uk.
4 Veterinary Lead, Pig Expert Group, Surveillance Intelligence Unit, APHA Bury St Edmunds Veterinary Investigation Centre, Rougham Hill, Suffolk IP33 2RX, e-mail: Susanna.Williamson@apha.gsi.gov.uk.
6 Veterinary Lead, Miscellaneous and Exotic Farmed Species Expert Group, APHA Bury St Edmunds Veterinary Investigation Centre, Rougham Hill, Suffolk IP33 2RX, e-mail: Julie.Wessels@apha.gsi.gov.uk.