Defra - Avian Influenza Latest Situation
11 June 2025
New Cases in England
Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in poultry at a premises near Ravensthorpe, Kirklees, West Yorkshire (AIV 2025/45) on 11 June 2025. A 3km protection zone and 10km surveillance zone has been declared surrounding the premises (effective from 19:15 on 11 June 2025). All poultry on the premises will be humanely culled.
Northern Ireland World Organisation for Animal Health Self-Declared Zonal Freedom from HPAI in Poultry
In line with World Organisation for Animal Health (WOAH) rules, Northern Ireland has successfully achieved self-declared zonal freedom from HPAI in poultry effective from 1 April 2025. The declaration has now been published and is available to view on the self-declarations section of the WOAH website.
Northern Ireland’s last case of HPAI in poultry or other captive birds was on the 24 February 2025, mandatory AIPZ housing measures in Northern Ireland were lifted on the 10 May 2025 and the AIPZ in Northern Ireland was lifted on the 31 May 2025.
It remains Defra’s objective to eradicate the HPAI as quickly as possible from the GB poultry and captive-bird population, and to facilitate trade, regain WOAH disease-free status across the UK at the earliest opportunity.
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All bird keepers are urged to remain vigilant and take action to protect their birds in response to the ongoing risk of highly pathogenic avian influenza (HPAI) in Great Britain.
To mitigate the risk of further outbreaks of disease occurring Avian Influenza Prevention Zones (AIPZ) mandating enhanced biosecurity remain in force across Great Britain (separate AIPZs are declared in each administration).
However, following a reduction in risk levels the mandatory AIPZ housing measures which have been in force across the highest risk areas of England were lifted from 00:01 on 15 May 2025.
Additional controls and mandatory housing for poultry and other captive birds continues to apply in any 3km Protection Zone or 3km Captive Bird (Monitoring) Controlled Zone in place surrounding premises where HPAI has been confirmed in poultry or other captive birds.
Keepers can check if they are in an avian influenza disease control or prevention zone in Great Britain using the Animal and Plant Health Agency’s (APHA) interactive map
Further information on the measures that apply in disease control zones can be found in Defra’s Bird flu: rules in disease control zones in England - GOV.UK guidance and the zone declarations available via the notifiable disease case finder on gov.uk.
Disease control zones will remain in place until all disease control and surveillance activities in the zones have been successfully completed and there are no suspect cases are under investigation in the zones.
Details of the current national risk levels for avian influenza can be found at gov.uk/birdflu with further information on the evidence which supports these levels available in APHA’s risk and outbreak assessments.
Practicing good biosecurity at all times protects the health and welfare of birds and for commercial keepers will help protect their business from HPAI and other diseases.
For further information on the latest situation and guidance including on what bird keepers can do to prevent bird flu and stop it spreading, how to house birds to protect their health and welfare during outbreaks, and how to spot and report it in poultry or other captive birds see gov.uk/birdflu