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Feline Panleukopenia

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Cats

About this condition

A highly contagious viral disease caused by feline parvovirus that destroys white blood cells and intestinal cells. Mortality is very high in kittens; the virus survives in the environment for extended periods, making vaccination the most effective prevention.

Common symptoms

  • Sudden fever and lethargy
  • Severe vomiting and complete loss of appetite
  • Watery or bloody diarrhea
  • Rapid deterioration and dehydration

Common causes

  • Infection with feline parvovirus
  • Contact with feces, vomit, or secretions of infected cats
  • Virus-contaminated environment or equipment
  • Unvaccinated kittens (highest risk group)

Prevention (husbandry & daily care)

Regular vaccination (FVRCP) is the most effective prevention. Quarantine and test new cats, and regularly clean and disinfect the environment.

Related species guide

Browse the species guide for this animal

When to see a vet

See a vet as soon as possible

What treatment does a vet provide?

Veterinarians confirm infection through rapid antigen testing and blood work showing dramatically reduced white blood cell counts. Intensive supportive care — intravenous fluids, antiemetics, and nutritional support — is provided. Antibiotics may be used to prevent secondary infections.

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