Bluetongue Testing in Britain: From Report to Result

When you report suspected bluetongue, the hardest part is often the waiting. Defra’s Gov.uk explainer, drawing on APHA outbreak guidance, tries to make that wait easier to understand by showing what happens from the first phone call to the final result. It helps to start with the basics. Bluetongue is a livestock disease spread by midges, not directly from animal to animal. That single fact shapes much of the response, from the push for prompt reporting to the strong emphasis on vaccination.

As APHA explains, bluetongue is a **notifiable disease**. In plain English, that means there is a legal duty to report any suspicion of it, even before you know for certain what is going on. **What this means:** reporting is not the same as confirming. Early reporting gives officials a chance to check whether the signs really point to bluetongue, to identify the strain if it is present, and to rule out other diseases that can look similar, including foot and mouth disease.

Once you contact APHA, an APHA vet will ask questions about your holding, the animals affected, the signs you have seen and any recent bluetongue vaccination history. With reports rising across Great Britain, that first conversation is doing two jobs at once: helping your own case move quickly and helping officials build a clearer picture of where disease may be spreading. The Gov.uk article says you can help by having your CPH number, keeper details, animal identification details, approximate stock numbers, information about the affected animals, the clinical signs observed and recent vaccination history ready before the call. It sounds like paperwork, but in an outbreak paperwork can save valuable time.

If that first assessment suggests bluetongue is likely, the next step depends on where your holding is. This is where the rules can feel confusing, because the route is not the same in England, Wales and Scotland. In England, eligible keepers can arrange for their private vet to collect blood samples from up to three affected animals using the APHA reference number provided. APHA covers the laboratory fees, but the keeper pays for the vet to take the samples. The article makes one point very clearly: if three samples are authorised, they should all be sent together, because sending only part of the set can slow testing and result reporting.

The England guidance also draws an important line between reporting and testing. Reporting a suspicion is compulsory because bluetongue is notifiable, but the testing route itself remains voluntary. If free testing does not apply in your case, your own vet can still send samples privately to The Pirbright Institute at your expense. Wales and Scotland work differently. In Wales, APHA arranges an official investigation, and the sampling and laboratory testing linked to a reported suspicion are funded by the Welsh Government, so there is no cost to the keeper for that investigation. The article also says animals that need care should still be treated by your vet whether samples are taken or not, and vaccination should still be discussed. Where government-funded testing is not available, private vets can still submit samples at the keeper’s expense.

In Scotland, the route is again different. If bluetongue is suspected, APHA carries out an on-site investigation and takes samples if required, at no cost to the keeper. So while the disease is the same across Britain, the funding, sampling route and who leads the visit are not identical. **Why the rules differ:** what changes is not the science of bluetongue, but the way each nation organises the official response. Across all three nations, though, one practical warning matters: samples should not be taken within seven days of a bluetongue vaccination. If sampling is needed, timing has to be planned carefully.

From there, accuracy matters almost as much as speed. In England, if your vet is sending samples, the outside of the parcel should be clearly marked with the APHA ERZ reference number and sent to The Pirbright Institute, the bluetongue reference laboratory. The paperwork should sit outside the container that holds the samples, not inside it. That may sound like a small technical detail, but Defra says incomplete paperwork and poor labelling can cause delays because the lab may need to chase missing information before testing can continue. In Wales, the vet carrying out the disease investigation submits the samples and paperwork. In Scotland, APHA packages the samples and sends them on.

There is also a separate point for animal movements into Scotland. If a bluetongue pre-movement test is required, the article says samples should be submitted as early as possible and clearly labelled ‘Pre-movement samples’ on the outside of the parcel. That helps the laboratory identify and prioritise them within the seven-day licence testing window. The guidance asks keepers and vets to allow at least three working days in the laboratory for this part alone. In other words, if movement depends on the result, late sampling can leave you stuck before the test has even begun.

Once samples reach Pirbright, the result route depends on both the nation and the outcome. In England and Wales, clearly marked samples with the right paperwork are processed as soon as practicable. If the result is negative, The Pirbright Institute can send that result directly to you. If the result is positive for a notifiable disease, it must be reported to and confirmed by APHA first, which is why positive results take longer to come back. The full process, including postage, may take up to two weeks. The article also gives a practical warning that many readers will appreciate: do not ring Pirbright for results, because the lab cannot release them by phone or email. In Scotland, suspected-case samples are prioritised, results go to APHA, and positive results are confirmed by Scotland’s Chief Veterinary Officer before APHA discusses the next steps with the keeper. Negative results are also passed on by APHA, and the guidance says that can take around two to three days.

The longer-term message is even plainer than the testing advice. Testing tells officials where disease is present and helps them track how it is spreading, but vaccination is described in the Gov.uk article as the only viable long-term control measure. That is because bluetongue spreads through midges rather than through direct contact between animals. The article says three BTV-3 vaccines have been authorised for use in Great Britain and can be ordered through your vet, but demand is already high. **What it means for you:** if you keep susceptible livestock, the practical lesson is to act early rather than late. Report suspicion promptly, label samples properly, follow the route for your nation, and speak to your vet about vaccination before supply pressure gets worse. Defra also ends on a human note, pointing readers towards support from the Farming Community Network, RABI and other rural charities, which matters because outbreaks are not just administrative events. They are stressful, tiring and personal.