28 March 2025

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in commercial poultry at a premises near Wymondham, Diss, Norfolk (AIV 2025/33).

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

Following official testing, HPAI H5N1 has been confirmed in poultry and other captive birds at a second premises near Blaydon, Blaydon and Consett, Durham (AIV 2025/34 formerly AIV SOS 2025/02).

All poultry and captive birds on the premises will be humanely culled.

The 3km and 10km area surrounding this premise fully overlap the 3km Protection Zone and 10km Surveillance in force surrounding premises AIV 2025/31, so no additional zone will be put in place for AIV2025/34).

Following successful completion of disease control activities and surveillance within the zones surrounding the premises near Malpas, Cheshire West and Chester, Cheshire (AIV 2025/24), the 3km protection zone has ended and the area becomes part of the 10km surveillance zone surrounding this premises.

Whilst this premises is in England part of the protection zone and surveillance zone extends into Wales, equivalent changes to the zones have been made by the Welsh Government. Further details can be found in their declaration.