7 November 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed at the following:
a large commercial poultry premises near Feltwell, King’s Lynn and West Norfolk, Norfolk (AIV 2025/90)
a large commercial poultry premises near Attleborough, Breckland, Norfolk (AIV 2025/91)
a large commercial poultry premises near Alford, East Lindsey, Lincolnshire (AIV 2025/92)
a second large commercial poultry premises near Thirsk, Thirsk and Malton, North Yorkshire (AIV 2025/93)
A 3km protection zone and 10km surveillance zone has been declared around each of the premises. All poultry on the premises will be humanely culled.

Following the receipt of official laboratory confirmation by the National Reference Laboratory, Weybridge, England, the Chief Veterinary Officer for Northern Ireland has confirmed that HPAI H5N1 is present in:

commercial poultry premises near Pomeroy, County Tyrone, Northern Ireland
commercial poultry premises near Lisnaskea, County Fermanagh, Northern Ireland
As a result, the temporary control zones that were put in place, around each premises have now been revoked and replaced by 3km protection zones and 10km surveillance zones.