A highly contagious and often fatal cat disease is spreading in East Idaho, leading local animal shelters and veterinary clinics to urge cat owners to ensure their pets are vaccinated. The Idaho Falls Animal Shelter reported a significant increase in cases of feline panleukopenia on Facebook, warning the public that the virus spreads rapidly and is typically fatal without immediate medical treatment, sometimes even then.

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Alpine Animal Hospital in Chubbuck echoed these concerns, noting a rise in feline panleukopenia cases in recent weeks. Feline panleukopenia, also known as feline distemper, primarily affects cats and is caused by a virus that targets rapidly dividing cells in the body, including those in the bone marrow and gastrointestinal tract. This can lead to a dangerous drop in white blood cell counts.

Symptoms of the virus may include lethargy, loss of appetite, vomiting, diarrhea (potentially containing blood), dehydration, and fever. In severe cases, particularly among young kittens, the disease can lead to sudden death.

The virus transmits easily; an infected cat can spread it through bodily secretions, especially feces, and it may also contaminate food and water bowls, bedding, clothing, and shoes. As a result, indoor cats are not guaranteed protection against exposure, according to Alpine Animal Hospital.

Fortunately, there is effective prevention through vaccination. The FVRCP vaccine, a core vaccine for cats, includes protection against feline panleukopenia. Kittens typically receive their first vaccination between six to eight weeks of age, followed by booster shots as recommended by their veterinarian.

With the rise in cases, veterinarians are emphasizing the importance of ensuring that cats' vaccinations are current. Cat owners noticing symptoms such as vomiting, diarrhea, extreme lethargy, or refusal to eat are advised to seek veterinary care immediately, as early treatment can be crucial for affected cats.