Two new cases of highly pathogenic avian influenza (HPAI) H5N1 have been confirmed in England, bringing the total number of outbreaks across the UK this season to 40.
The latest detections were reported on 13 November 2025 in a large commercial flock near Poringland, South Norfolk, and in a small backyard flock near Gosforth, Cumberland.
Both sites are under disease control restrictions. Around Poringland, a 3km protection zone and 10km surveillance zone have been declared, while a 3km captive bird controlled zone has been set up near Gosforth. In both cases, all affected birds will be humanely culled to prevent further spread.
These follow a series of outbreaks confirmed earlier this month, including major incidents in Suffolk, South Lanarkshire, Powys, Worcestershire, Norfolk, Lincolnshire, North Yorkshire, and Northern Ireland.
According to official figures, the 2025–2026 avian influenza season has now seen 31 cases in England, one in Scotland, five in Wales, three in Northern Ireland. The total number of confirmed cases stands at 40.
The UK remains under an Avian Influenza Prevention Zone (AIPZ), with mandatory housing measures in place across Great Britain. Poultry keepers with more than 50 birds are legally required to keep them housed, while smaller keepers must also comply if they sell or distribute eggs, meat, or live birds.