Defra - Avian Influenza Latest Situation

31 October 2025

Four further cases of highly pathogenic avian influenza H5N1 have been confirmed as follows:

• a second premises near Milford Haven, Pembrokeshire

• a premises near Ormesby St Margaret, Great Yarmouth, Norfolk

• premises near Uckfield, Wealden, East Sussex

• a premises near Swineshead, Boston, Lincolnshire.

A 3km Protection Zone and 10km Surveillance Zone have been put in place around each premises. Further information about these cases and the latest information is available on GOV.UK: www.gov.uk/birdflu and GOV.WALES: https://www.gov.wales/avian-influenza-bird-flu.

An Avian Influenza Prevention Zone (AIPZ) with mandatory housing measures is in place across areas of England and an AIPZ with mandatory biosecurity measures is also in force across Great Britain.

All bird keepers should remain vigilant and follow stringent biosecurity measures as detailed on GOV.UK: www.gov.uk/birdflu and GOV.WALES: https://www.gov.wales/avian-influenza-bird-flu and follow any housing measures/Protection/Surveillance Zone restrictions in their area that apply to prevent future outbreaks.

Please check the disease control zones on our avian influenza interactive map to see what restrictions are in place.