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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.

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 pathologists from APHA and a SRUC, SAC Consulting 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 Diseases 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.

Interesting cases from reports in 2016

GB emerging threats: avian disease report

Quarterly highlights

January to March 2016

  • HPAI and LPAI outbreaks in Europe
  • Histomonosis and colisepticaemia in organic layers
  • Avian Salpingitis-Peritonitis disease
  • Gizzard erosion in broiler and layer chickens

April to June 2016

  • HPAI and LPAI outbreaks in Europe
  • Enterococcal infections in broiler chickens
  • ‘Wooden breast’ in broiler chickens
  • Antimicrobial resistance: ESBL and AmpC E. coli in broiler chickens
  • Infectious respiratory diseases in backyard chickens

July to September 2016

  • HPAI and LPAI outbreaks in Europe
  • Adenovirus infections in broiler and layer chickens
  • Mycoplasma gallisepticum in gamebirds and poultry
  • Coccidiosis in point of lay ducks
  • Multi-Locus Sequence Typing for Mycoplasma synoviae in the Netherlands
  • Liver and caecal granulomas in layer chickens
October to December 2016
  • HPAI and LPAI outbreaks in Europe, including in wild birds
  • Mycoplasma gallisepticum in gamebirds and poultry
  • Marek’s disease with particular reference to backyard flocks
  • Viruses in broiler chickens with runting-stunting syndrome

Avian reports

Further information - External links