Bird flu: near Market Rasen, West Lindsey, Lincolnshire (AIV 2025/131)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry near Market Rasen, West Lindsey, Lincolnshire on 21 December 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 21 December 2025

• Disease Type: Bird flu (avian influenza)
• Disease control zone restrictions: In force
• Disease control zone type: Protection zone and Surveillance zone
• Virus strain: H5N1
• Case opened date: 21 December 2025

Case information

21 December 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed at a large commercial poultry flock near Market Rasen, West Lindsey, Lincolnshire (AIV 2025/131).

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 a 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 2025/131

Published 21 December 2025