Avian influenza outbreak timeline

 

Avian influenza, also known as bird flu is a highly pathogenic disease that mainly affects poultry. Avian influenza is a notifiable disease, and if you suspect any type of the disease in captive birds, you must report it immediately.

  • In you are in England, call the Defra Rural Services Helpline on 03000 200 301.
  • If you are in Wales, call 0300 303 8628.
  • In Scotland, contact your local Field Services Office.

If you suspect avian influenza in wild birds, you should call the Defra helpline on 03459 33 55 77.

Find out how our range of biosecurity services and plans can help you mitigate your risks.

avian influenza outbreaks in the UK

Yorkshire AI case map image

Near Thirsk, Thirsk & Malton, North Yorkshire

14 April 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry at a seventh premises near Thirsk, Thirsk and Malton, Yorkshire. A 3km protection zone and a 10km surveillance zone have been declared around the premises.

 

Near Stanhope, Bishop Auckland, Durham

2 April 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in poultry at a premises near Stanhope, Bishop Auckland, County Durham. A 3km protection zone and 10km surveillance zone has been declared around the premises.

 

Yorkshire AI case map image

Yorkshire AI case map image

Near Thirsk, Thirsk & Malton, North Yorkshire

1 April 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry at a fifth premises near Thirsk, Thirsk & Malton, North Yorkshire. A 3km protection zone and 10km surveillance zone has been declared around the premises

 

Near Pickering, Thirsk and Malton, North Yorkshire

30 March 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry at a premises near Pickering, Thirsk and Malton, North Yorkshire. A 3km protection zone and 10km surveillance zone have been declared surrounding the premises.

 

Yorkshire AI case map image

Avian influenza outbreak UK

Near Lazonby, Westmorland and Furness, Cumbria.

29 March 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in poultry at a premises near Lazonby, Westmorland and Furness, Cumbria. A 3km protection zone and 10km surveillance zone have been declared surrounding the premises.

 

Near Romsey, Test Valley, Hampshire

29 March 2025

HPAI H5N1 was confirmed in poultry and other captive birds at a premises near Romsey, Test Valley, Hampshire. A 3km protection zone and 10km surveillance zone has been declared surrounding the premises.

 

Avian influenza outbreak UK

AI map near Diss, Norfolk

Near Wymondham, Diss, Norfolk

28 March 2025

HPAI H5N1 was confirmed in commercial poultry at a premises near Wymondham, Diss, Norfolk. A 3km protection zone and 10km surveillance zone have been declared surrounding the premises.

 

Near Blaydon, Blaydon and Consett, Durham

28 March 2025

Following official testing, HPAI H5N1 has been confirmed in poultry and other captive birds at a second premises near Blaydon, Blaydon and Consett, Durham. The 3km and 10km area surrounding this premise fully overlap an existing 3km Protection Zone and 10km Surveillance in force surrounding another premises, therefore no additional zones will be put in place.

 

AI map near Diss, Norfolk

Avian Influenza Hambleton, North Yorkshire

Near Thirsk, North Yorkshire

27 March 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry at a fourth premises near Thirsk, Thirsk and Malton, North Yorkshire. A 3km protection zone and 10km surveillance zone has been declared around the premises.

 

Near Blaydon, Durham

26 March 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in poultry at a premises near Blaydon, Blaydon and Consett, Durham. A 3km protection zone and 10km surveillance zone has been declared around the premises.

 

Avian Influenza Hambleton, North Yorkshire