Feline leukemia virus (FeLV) 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 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.
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.

FeLV is a feline-only virus that cannot be transmitted to humans. Cats who test positive for FeLV can live for many years without serious symptoms. A positive FeLV test result SHOULD NOT be a death sentence. A vaccination for FeLV exists, but it is not 100 percent effective.
Feline leukemia (or FeLV) is the leading viral killer of cats. It weakens the immune system, increases susceptibility to other diseases, causes blood disorders and is the most common cause of cancer in cats.
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 leukaemia virus (FeLV) is a viral infection affecting cats worldwide. A cat permanently infected with FeLV is highly likely to develop disease related to the virus, which can cause suffering and death in cats.
Abstract. Practical relevance Feline leukaemia virus (FeLV) is a retrovirus of domestic cats worldwide. Cats lacking strong FeLV-specific immunity and undergoing progressive infection commonly develop fatal FeLV-associated disease.