AVIAN INFLUENZA has spread across Europe and Great Britain fast over this winter.
We have created a resource that should offer poultry farmers and others an overview of the situation, from cases to restrictions currently in place.
This is a live website, and data will be updated as soon as is possible.
- Confirmed Cases in the UK
- Wild Bird Findings
- Restrictions in Place
- Latest Defra Assessments
- Cases in Europe
- Restrictions in Place (Europe)
The general threat level that avian influenza presents has changed in recent years.
Where previously outbreaks were concentrated in one winter every three-to-four years, pressure from the virus is returning more regularly and for longer periods.
The AI ‘season’ can now be considered up to 30 weeks over the winter.
Furthermore, there has been increasing evidence of the virus persisting in non-migratory wild birds over the summer, meaning the risk can remain year-round.
This year, the first cases of avian influenza were confirmed in the last week of October – a week earlier than last year.
There is currently an Avian Influenza Prevention Zone (AIPZ) in place across Great Britain and Northern Ireland. An AIPZ makes high levels of biosecurity a legal requirement.
On 24 November, the four nations of the UK declared a housing order to come into force on 29 November. This means that poultry keepers must keep birds indoors.
According to Defra, (as of 18 November) risk of incursion of highly pathogenic (HPAI) avian influenza H5 in wild birds has increased from medium (event occurs regularly) to high (event occurs often) for wild birds.
The risk of poultry and captive bird exposure to HPAI H5 across Great Britain has increased from low (with medium uncertainty) to medium (with medium uncertainty) where biosecurity on premises is below the required standard.
Where stringent biosecurity measures are in place, the risk has increased from low (with low uncertainty) to low (with medium uncertainty).
Confirmed Cases in the UK
- A seventh premises near Thirsk, Hambleton, North Yorkshire
- Premises near Newent, Forest of Dean, Gloucestershire
- Premises near Richmond, Richmondshire, North Yorkshire
- Premises near Gretna, Dumfriesshire, Dumfries and Galloway, Scotland (premises in Scotland but the Surveillance Zone extends into England)
- Premises near Leominster, North Herefordshire, Herefordshire
- Premises near Tutbury, East Staffordshire, Staffordshire
- A sixth premises near Thirsk, Hambleton, North Yorkshire
- A second premesis near Barrow upon Soar, Charnwood, Leicestershire
- A fifth premises near Thirsk, Hambleton, North Yorkshire
- A fourth premises near Thirsk, Hambleton, North Yorkshire
- Premises near Clitheroe, Ribble Valley, Lancashire
- Premises near Gaerwen, Isle of Anglesey, Wales
- Premises near Poulton le Flyde, Wyre, Lancashire (H5N1)
- A third premises near Thirsk, Hambleton, North Yorkshire (H5N1)
- Premises near Barrow upon Soar, Charnwood, Leicestershire (HPAI H5N1)
- A second premises near Thirsk, Hambleton, North Yorkshire (HPAI H5N1)
- A second premises near Leeming Bar, Hambleton, North Yorkshire (HPAI H5N1)
- Premises near Wells-next-the-Sea, North Norfolk, Norfolk. (HPAI H5N1)
- Premises near Thirsk, Hambleton, North Yorkshire. (HPAI H5N1)
- Premises near North Fambridge, Maldon, Essex (H5N1)
- Premises near Mouldsworth, Cheshire West and Chester, Cheshire (H5N1)
- Premises near Silecroft, Copeland, Cumbria (H5N1)
- Premises near Pokesdown, Bournemouth, Christchurch and Poole (H5N1)
- Premises near Willington, South Derbyshire, Derbyshire (HPAI H5N1)
- Premises near Kirkham, Fylde, Lancashire (HPAI H5N1)
- Premises near Leeming Bar, Hambleton, North Yorkshire (HPAI H5N1)
- Premises near Salwick, Fylde, Lancashire (HPAI H5N1)
- Premises near Salwick, Fylde, Lancashire (HPAI H5N1)
- Premises near Frinton-on-Sea, Tendring, Essex (HPAI H5N1)
- Premises near Alcester, Bidford, Warwickshire (HPAI H5N1)
- Premises near Chirk, Wrexham, Wales (HPAI H5N1)
- Premises near Droitwich Spa, Wychavon, Worcestershire – captive birds (non-poultry) (HPAI H5N1)
Wild Bird Findings
The number of wild birds confirmed to have HPAI H5N1 has increased significantly since the end of October.
Before week 43 the previous finding of HPAI in wild birds was in the Outer Hebrides, in week 33.
The map below (locations are approximate) demonstrate how widely across the UK the virus has spread.
Restrictions in Place
Since 3 November, an Avian Influenza Prevention Zone (AIPZ) has been in place in England, Wales and Scotland. An AIPZ was declared in Northern Ireland on 17 November.
AIPZs make biosecurity measures a legal requirement, and are the precursor to a full housing order.
Will a housing order be declared?
From 8.30 pm on 21 November 2021, an avian influenza prevention zone was declared in parts of North Yorkshire in England, namely the districts of Harrogate, Hambleton and Richmondshire.
This means that it is a legal requirement for all bird keepers in that area to keep their birds indoors and to follow strict biosecurity measures in order to limit the spread of and eradicate the disease.
On 24 November, the four nations of the UK declared a housing order to come into force on 29 November.
Latest Defra Assessments (External Links)
- Scientific Opinion on the effectiveness of a housing order and Risk Assessment for GB.
- 10 November 2021: Highly pathogenic avian influenza (HPAI) in the UK and Europe
- November 2021: Rapid risk assessment on incursion of H5Nx HPAI into housed or not housed poultry flocks and captive birds
- November 2021: Qualitative risk assessment on the likelihood of spread of highly pathogenic avian influenza (H5Nx) associated with bird fairs, shows, markets, sales and other gatherings
- 2 November 2021: Highly pathogenic avian influenza (HPAI) in the UK, and Europe
Cases in Europe
European map under construction
Housing Orders In Place
- France (5 November)
- Belgium (14 November)
- Netherlands (28 October)
- Republic of Ireland (21 November)
- Czech Republic (23 November)