Bird flu: near York, York, North Yorkshire (AIV2025/135)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near York, York, North Yorkshire on 24 December 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 24 December 2025
• Last updated: 3 February 2026 — See all updates

• Disease Type: Bird flu (avian influenza)
• Disease control zone restrictions: In force
• Disease control zone type: Surveillance zone
• Virus strain: H5N1
• Case opened date: 24 December 2025

Case information

3 February 2026

Following successful completion of disease control activities and surveillance around a premises near York, York, North Yorkshire (AIV 2025/135), the 3km protection zone has ended and the area that formed it becomes part of the surveillance zone.

All poultry on the premises have been humanely culled.

24 December 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed 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.

Declarations

Declaration of the ending of a protection zone

This revokes and replaces:

Declaration of an avian influenza protection zone and surveillance zone

Further information

Check:

• the updated bird flu disease control zone map
• if you need a licence to move poultry, poultry by-products, eggs, material or mammals

Case number: AIV 2025/135

Published 24 December 2025

Last updated 3 February 2026 + show all updates

1. 3 February 2026

   Following successful completion of disease control activities and surveillance around a premises near York, York, North Yorkshire (AIV 2025/135), the 3km protection zone has ended and the area that formed it becomes part of the surveillance zone. All poultry on the premises have been humanely culled.

2. 24 December 2025

   First published.