Defra's latest situation update places England at eight confirmed cases of bluetongue serotype 3 since 1 July 2026, marking the start of the 2026 to 2027 outbreak season. The department says there have been no cases this season in Wales, Scotland or Northern Ireland, but it is keeping national controls in place because transmission conditions have returned and cross-border movement rules remain active. For keepers and rural operators, the update is not simply a case count. England is already operating as a country-wide restricted zone, and the practical burden now falls on rapid reporting, movement compliance and breeding controls. Defra is also directing farmers and vets to its case map, which shows premises in Great Britain where one or more animals have tested positive by PCR for BTV-3, BTV-8 or BTV-12 since 1 July 2024.
The first confirmed infection of the summer was recorded on 10 July 2026 in a ewe in Staffordshire, after head swelling, drooling, crusted nostrils and lameness in all four feet were reported. Defra then confirmed two further BTV-3 findings on 14 July 2026: calves in Cheshire born blind, unable to stand properly and showing neurological signs, and a cow in Devon with a crusted muzzle, swollen eyes and reddened teats. A larger cluster followed on 16 July 2026, when Defra confirmed five additional BTV-3 incidents in Devon and Somerset after reports of suspect clinical signs. The department described lesions around the mouth and muzzle, excess salivation, facial swelling, fever, lameness and rapid loss of body condition, and it recorded deaths on two affected holdings. It also states that where suspect clinical signs are reported, diagnostic testing for up to three affected animals is funded by Defra.
The scientific basis for the renewed alert is seasonal. Defra says the midges that spread bluetongue became active again on 31 March 2026 and that recent warm weather has now provided enough cumulative heat for the virus to complete its development cycle inside the insect. That means onward transmission is again possible during the current vector season. The update also states that infection can occur through germinal products, meaning semen, ova and embryos. Temperatures in parts of nearby continental Europe are now judged high enough for infected midges there to become infectious, increasing concern about cross-Channel spread. Even so, Defra keeps the overall risk of incursion from all routes at medium, described as occurring regularly, while the specific risk of airborne incursion is rated negligible.
For day-to-day livestock management, the main rule is that the whole of England remains inside a bluetongue restricted zone. According to Defra, animals can move within England without a specific bluetongue licence or pre-movement testing. That eases internal trade, but the exemption does not apply to breeding material. Keepers who want to freeze germinal products anywhere in England still need a specific licence and testing, with sampling, postage and laboratory costs falling to the keeper. Wales has also been under an all-Wales restricted zone since 00:01 on 10 November 2025. Welsh Government guidance says that this allows livestock to move freely between England and Wales without vaccination or other mitigation measures, although donor animals must still be tested before germinal products are frozen or marketed.
Scotland remains the clearest cross-border exception. Under general movement licence EXD608(EW), any movement of bluetongue-susceptible animals from a restricted zone to a final destination in Scotland must meet licence conditions, including temporary movements to shows, markets and other gatherings. The Scottish Government says those controls came into force on 1 June 2026 and will remain in place until at least 9 September 2026. The arrangement covers animals moving from England, Wales, Northern Ireland and the Isle of Man. In practice, Defra's movement regime now operates on three tracks: simpler movement within England, freer livestock movement between England and Wales because both countries are zoned, and tighter conditions for Scotland-bound movements and germinal products. Separate licensing guidance also applies to some animal movements from Northern Ireland to Great Britain.
Vaccination and biosecurity remain central to the official response. Defra's published guidance covers BTV-3 vaccination and routine disease-slowing measures, while separate identification and movement rules continue to apply to cattle, bison, buffalo, sheep, goats and deer. The Animal and Plant Health Agency advises camelid keepers, including those with llamas and alpacas, to contact the agency directly where the position is unclear. The same government package points keepers towards import, export and EU trade rules for animals and animal products, and it includes webinars, leaflets, videos and posters intended to support compliance. The legal and operational basis remains Defra's disease control framework for bluetongue in England, which shows that ministers are treating this as an ongoing management problem rather than a short-lived incident.
The historical data explain why the present system relies on zones and routine controls. Defra says the 2025 to 2026 outbreak season produced 348 cases in Great Britain, with 324 in England and 24 in Wales, while Scotland recorded none. England's total comprised 311 BTV-3-only cases, 5 BTV-8-only cases, 7 mixed BTV-3 and BTV-8 cases, and 1 case where the serotype was not known. Northern Ireland separately confirmed 5 BTV-3 cases. The 2024 to 2025 season produced 163 cases in total, made up of 160 BTV-3 cases in England, 2 cases linked to high-risk moves in Wales and 1 BTV-12 case confirmed in England on 7 February 2025. Defra also records 126 BTV-3 cases on 73 premises between 10 November 2023 and 3 March 2024, the first UK incursions in more than 15 years. Before that, the last confirmed outbreak was BTV-8 in 2007 to 2008.