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Avian disease surveillance

If you have found something new, unusual, severe, or unresponsive in relation to avian diseases, please contact the AEG veterinary lead or your nearest Veterinary Investigation Centre.

Please note: if you suspect a notifiable disease you must contact APHA immediately.

Explore the diagnoses made by the GB surveillance network through the interactive avian disease surveillance dashboard.

Avian Expert Group (AEG) veterinary lead

Image of AEG veterinary lead - David Welchman

The AEG veterinary lead is David Welchman (0208 0267640).

David has been the AEG veterinary lead since April 2014. He leads the Defra-funded avian disease scanning surveillance project in APHA, and is a former President of the British Veterinary Poultry Association and current Senior Vice-President. David also represents APHA on the Poultry Health and Welfare Group.

AEG members

To support the AEG veterinary lead, the group has representation from Veterinary Investigation Officers and avian pathologists from APHA and a SRUC Veterinary Services representative. In addition, there are APHA members on AEG providing expertise for specific disciplines (e.g. epidemiology, virology) and specific diseases (e.g. avian influenza).

AEG non-APHA members include representatives from:

AEG surveillance reports

AEG contributes interesting and unusual avian cases, highlights avian disease alerts or findings and provides focus articles relating to poultry and gamebirds for the APHA Veterinary Record monthly disease surveillance report. These are compiled together with contributions from other Species Expert Groups.

Quarterly GB Avian Disease Surveillance and Emerging Threats reports are compiled by the AEG. They summarise investigations into threats and other surveillance issues to inform governments, the veterinary profession and livestock farming industries of new or re-emerging threats to avian health or changing trends among existing ones.

Recent Interesting Cases

GB avian disease quarterly report: disease surveillance and emerging threats – April-June 2019

  • Avian influenza update in Europe
  • Focal duodenal necrosis in layers
  • Intestinal spirochaetosis in rheas
  • Multilocus sequence typing (MLST) for M. gallisepticum
  • Infectious coryza in small chicken flocks

GB avian disease quarterly report: disease surveillance and emerging threats - January-March 2019

  • Notifiable disease (Avian influenza and Newcastle disease) update
  • Differential diagnosis of negated notifiable avian disease report cases in GB
  • Infectious bronchitis and other respiratory agents in UK poultry flocks
  • Antimicrobial resistance in Brachyspira species in poultry.

GB avian disease quarterly report: disease surveillance and emerging threats – October-December 2018

  • Notifiable disease (Avian influenza and Newcastle disease) update in Europe
  • Infectious bursal disease virus (IBDV) update
  • Infectious laryngotracheitis (ILT) update
  • Horizon scanning: Avian hepatitis E virus
  • Botulism in gamebirds and domestic waterfowl
  • Spotty liver disease in layers

GB avian disease quarterly report: disease surveillance and emerging threats – July-September 2018

  • Notifiable disease (Avian influenza and Newcastle disease) update in Europe
  • Adenoviral gizzard erosion in broilers – review of cases over the last six years
  • Detection of bird-biting mosquitoes in Southern England
  • Coronavirus-associated nephritis of pheasants.

Avian dashboard

Population information

Disease information

Information notes and alerts on specific diseases or conditions:

Further information - External links