Feline leukemia virus is a retrovirus that infects cats. FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved.
Feline leukemia is sneaky. Cats may have no signs during early stages, and then over weeks, months or even years, health may progressively deteriorate. Or, an FeLV-positive cat may have recurrent illness interspersed with periods of relative health. Symptoms include
Feline leukemia in cats: Know the symptoms and explore treatment options with trusted vet advice from (). Learn how to protect your cat!

Feline leukemia is a disease caused by feline leukemia virus (FeLV), which suppresses a cat's immune system. This virus directly targets a cats white blood cells, resulting in a decrease of defenses.
Early detection through specific blood tests is essential to provide the best possible care for a cat affected by feline leukemia. Symptoms of a cat with leukemia. A cat affected by feline leukemia may display a variety of signs and symptoms that can vary in intensity.

Feline Leukemia Virus. Suggested Articles. Lymphoma. Feline Vaccines: Benefits and Risks. Diarrhea.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.