Feline panleukopenia

What is it?

Cat typhus, or feline panleukopenia, is a serious and highly contagious viral disease that mainly affects kittens. It attacks rapidly multiplying cells, particularly those in the intestine and bone marrow. It is one of the most dangerous feline diseases in Tunisia, particularly in unvaccinated animals.

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Commonly observed signs

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

Causes and risk factors

The disease is caused by feline parvovirus, a very resistant virus in the environment. It destroys rapidly renewing cells, particularly in the intestine, bone marrow and, in the fetus or very young kitten, the brain. Its great stability allows it to survive for a long time outside the body.

Unvaccinated kittens, stray cats and overcrowded breeders or shelters are particularly at risk. Lack of vaccination and a weakened immune system greatly increase the risk. Contact with contaminated environments, such as areas frequented by many cats, also promotes transmission.

Transmission

The virus is transmitted by direct contact with the feces, urine or secretions of an infected cat, as well as through contaminated objects such as litter, bowls or hands. An infected pregnant cat can also transmit the virus to her young during gestation. The virus can persist for several months in the environment, making indirect contamination frequent.

Diagnosis and care

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

Treatment

There is no drug that directly destroys the virus. The veterinarian supports the cat's body while its immune system fights the infection.

The cat is most often hospitalized. It receives intravenous fluids to correct dehydration and rebalance electrolytes.

Medications against vomiting and pain are used. Antibiotics are often added to prevent bacterial infections, which are common when the defenses are low.

Nutritional support is offered as soon as possible, sometimes by feeding tube. In severe cases, a blood transfusion or other intensive care may be considered.

A sick cat must be isolated from other cats, as it is highly contagious. The prognosis depends on the age, the severity, and how quickly care is provided. Very young kittens are the most fragile.

Do not give any medication yourself.

Prevention

Vaccination

A vaccine exists. It protects against feline parvovirus and is one of the core vaccines for cats, usually combined with those for feline herpesvirus (rhinotracheitis) and calicivirus.

The primary vaccination series starts in kittens from a few weeks of age, with several injections spaced apart. They are needed because antibodies received from the mother can interfere with the effectiveness of the first doses.

A booster is then given after the primary series, followed by repeat boosters at regular intervals according to the protocol chosen by the veterinarian.

An adult cat that is unvaccinated or whose vaccination is out of date should be seen by the veterinarian to update its protocol. The exact schedule is set by your veterinarian.

Possible complications

Severe dehydration and electrolyte imbalances can lead to shock and death.

The virus destroys white blood cells. The cat becomes very vulnerable to bacterial infections, which can spread through the blood (septicemia).

Involvement of the intestine can cause digestive bleeding and significant weight loss.

Anemia may occur.

In a pregnant queen, the infection can cause abortions, stillbirths, or kittens born dead.

In the fetus or very young kitten, involvement of the cerebellum causes coordination disorders: unsteady gait, tremors. These sequelae are often permanent.

Mortality is high, especially among young unvaccinated kittens.

When to see a veterinarian

References

MSD Veterinary Manual

WOAH — Organisation mondiale de la santé animale (ex-OIE)

Content reviewed by the TunisieVet editorial team · Updated 30 October 2026