British vets urged to consider BTV-3 vaccination ahead of summer
All-England Restricted Zone to take effect from July 1
24 June 2025
2 minute read
By: The Chief Veterinary Officers of Great Britain, in collaboration with the Agriculture and Horticulture Development Board (AHDB), Ruminant Health and Welfare (RH&W), and other industry stakeholders, are encouraging vets and farmers to discuss the potential use of licensed BTV-3 vaccines as the new vector season approaches, according to a news release.
Bluetongue virus serotype 3 (BTV-3) has caused significant losses in sheep and cattle across mainland Europe. In 2024, cases in Great Britain were largely confined to eastern England and showed generally mild clinical signs. However, with the risk that the virus may have overwintered and spread to parts of western England, concerns for animal health and disease transmission have increased.
Vaccines—Bultavo-3, Bluevac-3 and Syvazul BTV 3—are now licensed for use across England, Scotland and Wales. Pharmaceutical companies are working closely with the livestock sector to ensure adequate supply. Officials recommend that farmers and vets consider vaccination to protect animal welfare and reduce the likelihood of disease spread.
In response to the evolving risk, an all-England Restricted Zone (RZ) will be implemented starting 1 July. Authorities note that dividing the country with multiple RZs offers limited benefit at this stage, given the current distribution of the virus.
Pre-movement testing of animals from the RZ will still be required in most cases when moving stock into Scotland or Wales. The devolved governments will continue to review these requirements to balance disease prevention with the need for practical farm operations and trade.
The veterinary community stresses that the primary goal of vaccination is to safeguard animal health—not simply to facilitate trade. Vaccination remains the most effective means to prevent illness, minimise suffering, and limit the spread of BTV-3.
RH&W has published a collection of resources on its Bluetongue Virus Hub, including tools to help vets and farmers design farm-specific strategies and make informed decisions about vaccination.
Guidance from veterinary and government officials will be updated regularly as the situation develops.
