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).
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.
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Feline leukemia virus (FeLV) is one of the most common infectious causes of disease of cats globally. Infection with FeLV can cause a variety of clinical signs, impacting a cat's longevity and quality of life.
FeLV (or Feline Leukemia Virus) attacks the immune system, weakening cats' ability to fight off illnesses. It's often fatal, but can be prevented via vaccine.

As we can see from the illustration, Feline Leukemia Virus In Cats And Cat Problem Behavior has many fascinating aspects to explore.
Young cats and those with underlying health issues are more at risk of acquiring feline leukemia, but any unvaccinated cat is at risk. Only cats can contract the feline leukemia virus, as it is a species specific disease. There is a strong link between FeLV and feline lymphoma or leukemia.