Bird flu: near Mundford, Breckland, Norfolk (AIV2025/112)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near Mundford, Breckland, Norfolk on 25 November 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 25 November 2025
• Last updated: 18 February 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• Disease control zone restrictions: No longer in force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: 25 November 2025
• Case closed date: 18 February 2026

Case information

18 February 2026

Following successful completion of disease control activities and surveillance in the zone around a premises near Mundford, Breckland, Norfolk (AIV2025/112), the 3km protection zone has ended and the surveillance zone has been revoked.

All poultry on the premises have been humanely culled.

25 November 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near Mundford, Breckland, Norfolk

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

Declarations

Download the Declaration of the end of a Protection Zone and revocation of the Surveillance Zone

This revokes:

Declaration of a 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 2025/112

Published 25 November 2025

Last updated 18 February 2026 + show all updates

1. 18 February 2026

   Following successful completion of disease control activities and surveillance in the zone around a premises near Mundford, Breckland, Norfolk (AIV2025/112), the 3km protection zone has ended and the surveillance zone has been revoked.

2. 25 November 2025

   First published.