viral disease Raccoon dog

Aujeszky's disease

Find a veterinarian All raccoon dog diseases

Definition Signs Causes Transmission Diagnosis Treatment Prevention Complications When to see a vet Prognosis FAQ Sources Affected species

What is it?

Aujeszky's disease is a serious viral infection caused by porcine herpesvirus. The raccoon dog, like other carnivores, can become infected by consuming contaminated pork or wild boar meat or offal. In this species, the disease is almost always fatal within a few days. Pigs remain the natural reservoir of the virus; the other species, including the raccoon dog, are epidemiological “dead ends”, that is to say they do not transmit the disease further.

Key point

Systematically fatal disease in raccoon dogs once symptoms appear; any suspicion should be reported to the competent veterinary authorities.

Commonly observed signs

These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.

Related signs — each one links to its page:

Itching Restlessness Seizures Excessive salivation Fever Paralysis Reduction Loss of appetite Behaviour change Tremors Difficulty breathing

The most characteristic sign is intense and localized itching, often on the head, muzzle or a limb: the animal scratches, bites or rubs violently until it injures itself.

Other signs accompany this picture: extreme agitation, abnormal vocalizations, abundant salivation, tremors, then appearance of convulsions and paralysis.

The progression is very rapid, generally in less than 48 hours, and almost always ends in the death of the animal.

It is important to note that unlike rabies, there is no aggression directed towards humans or other animals, which can help direct suspicion, without ever replacing veterinary advice.

When to consult without delay

This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.

Causes and risk factors

The disease is caused by a porcine herpesvirus (pseudorabies virus), which is very resistant in the environment but sensitive to most common disinfectants.

The raccoon dog becomes infected mainly by ingesting raw meat, offal or carcasses of infected domestic pigs or wild boars, particularly during scavenging in rural or forest areas.

Contact with pig farms, wild boar carcasses or leftover uncooked pork meat increases the risk.

Raccoon dogs living in areas where the disease circulates among domestic or wild pigs are most at risk.

Access to trash bins or slaughterhouse waste containing contaminated porcine tissues also constitutes a risk factor.

Transmission

Transmission mainly by ingestion of infected tissues (meat, offal) from domestic pigs or wild boars; no known transmission between raccoon dogs or to humans.

Diagnosis and care

Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.

The diagnosis of suspicion is based on clinical observation, in particular the characteristic localized pruritus associated with a very rapid neurological progression.

Confirmation requires specialized laboratory tests, carried out after the animal's death, looking for the virus or its genetic material in the nervous system.

Given the rarity of survival and the speed of progression, the disease is most often diagnosed retrospectively, during an autopsy.

Treatment

There is no effective curative treatment for this viral infection in raccoon dogs.

Veterinary care aims only to relieve the animal's suffering, in particular through comfort care and sedation if necessary, while awaiting the inevitable outcome.

Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.

Prevention

Prevention is primarily based on controlling the disease in pigs, the main reservoir of the virus.

Avoiding any contact of raccoon dogs with pig or wild boar carcasses, particularly in areas where the disease is known, limits the risk of exposure.

There is no suitable or recommended vaccine for this wild species.

Possible complications

The course is almost systematically fatal, without notable intermediate complications: death generally occurs within two days after the appearance of the first signs.

When to see a veterinarian

A raccoon dog with intense and localized scratching that appeared suddenly

Sudden restlessness associated with excessive salivation

The appearance of tremors or convulsions

Any wild animal found in an abnormal neurological state after possible contact with pigs or wild boars

Prognosis

The prognosis is extremely poor: in raccoon dogs, as in other non-porcine carnivores, the disease is almost always fatal once symptoms appear, within a few hours to a few days.

Frequently asked questions

Can Aujeszky's disease be cured in raccoon dogs?

No, unfortunately. Once symptoms appear, the outcome is almost always fatal within two days, despite veterinary care.

How does a raccoon dog get this disease?

Most often by eating raw meat, offal or carcasses of domestic pigs or wild boars infected with the virus.

Is this disease dangerous for humans?

No, Aujeszky's disease is not transmissible to humans. It mainly affects pigs and, accidentally, other mammals such as the raccoon dog.

How to differentiate this disease from rabies?

Only a veterinarian or a specialized laboratory can confirm this. A possible indicator is the absence of directed aggression, unlike rage, but this is never enough to rule out suspicion without analysis.