UK urges livestock keepers to vaccinate as bluetongue BTV-3 spreads through summer
The UK's Chief Veterinary Officer is urging livestock keepers across Great Britain to be on high alert for bluetongue and to seriously consider vaccinating now, as BTV-3 cases keep climbing through a summer of hot, humid weather favourable to the midges that spread the virus.
Key facts
- Defra's Chief Veterinary Officer is urging livestock keepers across Great Britain to vaccinate now as BTV-3 cases keep rising, particularly in southwest England and parts of Wales.
- Restricted zones already let animals move without a licence in England and Wales, since movement controls are no longer considered effective against a vector-borne disease.
- The real bottleneck is lab turnaround at the Pirbright Institute, not zone paperwork — accurate sample submissions now reduce delay later.
What Defra announced, and what's actually driving it
In a 14 August 2026 press release, Defra's Chief Veterinary Officer Christine Middlemiss urged vaccination as bluetongue serotype 3 (BTV-3) cases continue to increase, particularly in the southwest of England and parts of Wales. Three vaccines are authorised for BTV-3 use in Great Britain, and Defra and the Veterinary Medicines Directorate have arranged with manufacturers to bring additional supply into the country — farmers and vets are being told to place orders now rather than wait. Separate restricted zones already operate in England and Wales, allowing animal movement without a licence, because standard movement controls are no longer considered effective at containing a disease spread by biting midges rather than direct contact. Movement controls do remain in place between the UK's constituent countries, with pre-movement testing required.
The detail most relevant to anyone actually moving stock: the Pirbright Institute is processing a very high volume of sample submissions, and the government is asking private vets to submit complete, accurate documentation — including animal identification — to cut delays. Lab turnaround, not zone rules, is the practical constraint on moving animals right now.
Scope and reporting
Bluetongue affects sheep, cattle, goats, deer and camelids (llamas and alpacas), with sheep at greater mortality risk; it is notifiable by law, and does not affect people or food safety. Keepers must ensure their holdings are correctly registered with APHA with current contact details.
Why it matters
Bluetongue status governs certification for live animals, germinal products and some animal by-products, so exporters shipping British cattle and sheep genetics — and anyone moving stock toward Scotland — should expect pre-movement testing lead times to lengthen as case numbers climb. Buyers of UK lamb and beef should expect tighter movement logistics, not a trade ban, since meat is not the transmission route. Book testing windows now: lab turnaround, not paperwork, is the constraint.