Bird flu: near Claydon, Mid Suffolk, Suffolk (AIV 2025/108)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near Claydon, Mid Suffolk, Suffolk on 21 November 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 21 November 2025
• Last updated: 23 January 2026 — See all updates

• Disease Type: Bird flu (avian influenza)
• Disease control zone restrictions: No longer in force
• Disease control zone type: None
• Virus strain: H5N1
• Case opened date: 21 November 2025
• Case closed date: 23 January 2026

Case information

23 January 2026

Following successful completion of disease control activities and surveillance within the zone around a premises near Claydon, Mid Suffolk, Suffolk (AIV 2025/108), the surveillance zone has been revoked.

22 January 2026

Following successful completion of disease control activities and surveillance within the zone around a premises near Claydon, Mid Suffolk, Suffolk (AIV 2025/108), 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.

21 November  2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near Claydon, Mid Suffolk, Suffolk.

A 3km protection zone and 10km surveillance zone has been declared around the premises. All poultry on the premises will be humanely culled. 

Download the declaration of the revocation of a surveillance zone

This revokes: Ending of a protection zone declaration (PDF)

This revokes and replaces:

Declaration of an avian influenza protection zone and surveillance zone (PDF)

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 2025/108

Published 21 November 2025

Last updated 23 January 2026 + show all updates

1. 23 January 2026

   Following successful completion of disease control activities and surveillance within the zone around a premises near Claydon, Mid Suffolk, Suffolk (AIV 2025/108), the surveillance zone has been revoked.

2. 22 January 2026

   Following successful completion of disease control activities and surveillance within the zone around a premises near Claydon, Mid Suffolk, Suffolk (AIV 2025/108), the 3km protection zone has ended and the area that formed it becomes part of the surveillance zone.

3. 21 November 2025

   First published.