Since 2024, bluetongue virus (BTV) has regularly made headlines in agricultural news, particularly with the arrival of serotype 3 on French territory. If you keep a few goats in your garden or a larger herd, you may have heard about this disease without knowing exactly what it means for your animals. The good news is that goats are far less affected than sheep. But knowing the right prevention steps and the possible actions to take in case of trouble remains useful, whatever the size of your herd.

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BTV in Goats: A Disease That's Usually Discreet

BTV, or bluetongue virus, is also known as bluetongue disease. It's a viral disease that affects domestic ruminants, including goats. It doesn't spread directly from one animal to another: it's transmitted by biting midges called Culicoides.

The good news for goats is that the disease most often goes unnoticed. Few animals in a herd are affected, and symptoms remain mild compared to what's seen in sheep. When signs do appear, they usually involve a short-lived fever (3 to 5 days), facial congestion, and sometimes abortions.

An important point: in most identified cases in goats, BTV was not the only cause at play. Other conditions such as pasteurellosis, enterotoxemia, or parasitism were often present at the same time. This means that an animal already weakened by other issues will be more vulnerable to the effects of BTV.

Serotype 3, which arrived in France in 2024, can affect goats, but generally without causing death. Another reassuring point: the disease is not contagious from animal to animal outside of midge bites (except in cases of contamination through poorly disinfected equipment, such as reused needles), and it has no impact on human health or the quality of food products.

Vaccinating Your Goats Against BTV: A Voluntary Decision to Weigh Carefully

Optional Vaccination Available to All Owners

In France, vaccination against BTV is not mandatory. It's a voluntary step, open to all ruminant owners who wish to protect their herd, including those keeping just a few companion goats. The decision should be made together with your veterinarian, based on the local health situation and the makeup of your herd.

Which Vaccines and Under What Conditions?

All available BTV vaccines can be used in goats, under what's known as the therapeutic cascade. This means they are prescribed by your veterinarian, who tailors the protocol to your situation. As with any animal health decision, this choice should be confirmed with them: they know your animals and the health situation in your region.

Why Aim for Broad Herd Coverage

For vaccination to be truly effective, it's recommended to vaccinate as much of the herd as possible, including animals that have already been infected. This broad coverage is what achieves sufficient collective immunity and limits the virus's circulation within your herd.

Side Effects to Watch For After the Injection

As with any vaccination, it's normal to see a small reaction. Local reactions at the injection site may appear two to five days after the first dose. If you notice anything unusual or persistent, don't hesitate to speak to your veterinarian about it.

A Vaccine Sometimes Covered by the State

Depending on ongoing campaigns, vaccine doses may be made available free of charge to ruminant farmers, including goat keepers. In this case, only the prescription and injection costs remain your responsibility. Check with your veterinarian or your local GDS (animal health defense group) to find out if a campaign is currently active near you.

Reducing Midge Bites Day-to-Day in Your Enclosure

Beyond vaccination, a few simple steps can help reduce your goats' exposure to the midges that transmit BTV.

• Treating animals with insecticide products that have market authorization (AMM) reduces the risk of bites. Be aware, however, that this is not a miracle or continuous solution against Culicoides midges, which remain difficult to eliminate completely.
• Also think about your goats' environment: stirring or covering areas where organic matter is stored, such as manure or damp bedding, makes these areas less attractive to midges. A well-maintained enclosure is already a useful first line of defense.

If an Outbreak Is Declared: Steps to Getting Compensated

If, despite these precautions, your herd is affected, know that there are steps you can take to get support, including financial help in certain cases.

To be eligible for compensation, the disease must first be confirmed by PCR testing, and your farm officially declared an outbreak site. This is an essential step, to be carried out with your veterinarian as soon as suspicious symptoms appear.

In 2024, an emergency state aid scheme, managed through FranceAgriMer, made it possible to compensate for excess goat mortality linked to BTV serotypes 3 and 8, based on a flat rate per animal category. This type of scheme can change from year to year depending on the health situation.

In any case, your local GDS (animal health defense group) remains your main point of contact to support you in a BTV compensation application. Don't hesitate to reach out as soon as you have any doubt: they will be able to guide you step by step through the process, whatever the size of your herd.