Feline Leukemia Virus (FeLV) Symptoms, Vaccine, Treatment
Feline leukemia virus (FeLV) is second only to trauma as the leading cause of death in cats, killing 85% of persistently infected felines within three years of diagnosis. The virus commonly causes ...
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. Vaccination and identification of infected cats is important in preventing disease transmission.
Feline Leukemia Virus (FeLV)

Feline leukemia virus (FeLV) is one of the most important infectious diseases of cats worldwide. Affected cats can develop anemia (a low red blood cell level), cancers, and/or suppression of the immune system. The disease worsens over time and is usually fatal. The virus can infect domestic and wild cats (such as lions). Widespread testing and vaccination efforts have helped to reduce the ...
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). Fortunately, the prevalence of FeLV in cats has decreased significantly in the past 25 years since the development of ...
Understanding Feline Leukemia

Discover the causes, symptoms, and treatment options for feline leukemia . Learn how to diagnose and manage this viral disease in cats.
Updates in the diagnosis and management of feline leukemia virus (FeLV) Not all feline leukemia virus (FeLV) infected cats are the same. There are different stages of infection, different outcomes, and different disease manifestations. Some infected cats will go on to live a nearly normal lifespan while others may die within months to a few years. If each FeLV-infected cat is different, how do ...
Feline Leukemia

Discover how feline leukemia in cats spreads, its symptoms, and how to protect your cat through testing, vaccination, and early care.
You can spot the warning signs of feline leukemia virus, also known as FeLV, if you know what to look for. When the disease is detected early enough, you may even be able to take steps to lengthen the life of your cat.
What is feline leukemia virus (FeLV)? Feline leukemia virus (FeLV) is a virus that infects cats. It was first identified in cats that had a form of leukemia (cancer of the white blood cells), but it is now known to cause a range of serious health problems. FeLV depresses the immune system, making infected cats more prone to infections, anemia, and certain cancers. Like all viruses, FeLV can ...