1. Virology Department, Animal and Plant Health Agency (APHA) Weybridge, Addlestone, UK
2. Pathology and Animal Sciences Department, APHA Weybridge, Addlestone, UK
3. APHA England Field Delivery, APHA Stafford, Stafford, UK
4. APHA Bridgwater, Bridgwater, UK
5. APHA England Field Delivery, Stroud, UK
6. APHA Bakewell, Bakewell, UK
7. WOAH/FAO International Reference Laboratory for Avian Influenza, APHA Weybridge, Addlestone, UK
8. Veterinary Exotic Notifiable Disease Unit (VENDU), London, UK
9. APHA Sand Hutton, National Wildlife Management Centre, York, UK