Diagnosing Feline Leukemia Virus. Your veterinarian can diagnose the disease by conducting a simple blood test called an ELISA, which identifies FeLV proteins in the blood. This test is highly sensitive and can identify cats with very early infections.
Feline Leukemia Virus (FeLV) is a common but preventable virus that can affect almost all cats. Dr. Boldan shares how FeLV weakens a cat's immune system, symptoms, and how the feline leukemia virus vaccine can be life-saving.
Feline leukemia virus (FeLV) is one of the most common and important infectious diseases in cats, affecting between 2-3% of all cats in the United States and Canada. Infection rates are significantly higher (up to 30%) in cats that are ill or otherwise at high risk (see below).

As a cat parent, hearing the words feline leukemia can be frightening. This serious viral infection harms cats worldwide, affecting between 2-3% of all cats in the U.S. 1. This deadly virus doesnt just make cats sick it affects their immune system and can shorten their lives.
Feline leukemia virus (FeLV) is often a confusing subject because of its name. In humans, leukemia is a type of cancer of the blood and bone marrow, but cat leukemia is actually a virus. However, it can cause serious health issues and lead to cancer in cats.

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View 3 More + Less -. Feline leukemia virus (FeLV) is a common infectious cause of disease in cats, affecting as much as 3% of the entire cat population in the United States and Canada,1 according to the Cornell Feline Health Center.
In-depth Information on Leukemia in Cats. The acute form of lymphocytic leukemia is called acute lymphoblastic leukemia, or ALL. Pets with ALL are generally very ill, and begin to show clinical signs of illness fairly suddenly. Patients with ALL will often have a fever.