24 December 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in Scotland in a second large commercial poultry unit at a premises near Penicuik, Scottish Borders (AIV2025/134). A 3km protection zone and 10km surveillance zone has been declared around the premises. All poultry on the premises will be humanely culled.

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in England in a large commercial poultry flock near York, York, North Yorkshire (AIV 2025/135). A 3km protection zone and 10km surveillance zone has been declared around the premises. All poultry on the premises will be humanely culled.

Following successful completion of disease control activities and surveillance in the zone near Ormesby St Margaret, Great Yarmouth, Norfolk (AIV 2025/76), the surveillance zone has been revoked.

Following successful completion of disease control activities and surveillance in the zone around a premises near Thirsk, Thirsk and Malton, North Yorkshire (AIV 2025/82), the surveillance zone has been revoked.