Bird flu: near Stockbridge, Test Valley, Hampshire (AIV 2025 63)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in captive birds near Stockbridge, Test Valley, Hampshire (AIV 2025 63) on 11 October 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 11 October 2025
• Last updated: 3 November 2025 — See all updates

• Disease Type: Bird flu (avian influenza)
• Disease control zone restrictions: No longer in force
• Disease control zone type: Captive bird (monitoring) controlled zone
• Virus strain: H5N1
• Case opened date: 11 October 2025
• Case closed date: 3 November 2025

Case information

3 November 2025

Following successful completion of disease control activities and surveillance in the zone around a second premises near Stockbridge, Test Valley, Hampshire (AIV 2025/63) the 3km captive bird (monitoring) controlled zone has been revoked.

11 October 2025 

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in captive birds near Stockbridge, Test Valley, Hampshire (AIV 2025 63).

A 3km captive bird (monitoring) controlled zone has been declared around the premises. All poultry on the premises will be humanely culled.

Download the revocation of the avian influenza captive bird (monitoring) controlled zone

This revokes: Declaration of an avian influenza captive bird (monitoring) controlled 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 2025/63

Published 11 October 2025

Last updated 3 November 2025 + show all updates

1. 3 November 2025

   Following successful completion of disease control activities and surveillance in the zone around a second premises near Stockbridge, Test Valley, Hampshire (AIV 2025/63) the 3km captive bird (monitoring) controlled zone has been revoked.

2. 11 October 2025

   First published.