Featured Article

Feline Leukemia in Cats: Symptoms, Treatment, and Prevention

Thomas Aug 04, 2026

Feline Leukemia Virus

Feline Leukemia in Cats
Feline Leukemia 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). Fortunately, the prevalence of FeLV in cats has decreased significantly in the past 25 years since the development of ...

Feline Leukemia Causes Symptoms and Treatment
Feline Leukemia Causes Symptoms and 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 Disease Complex

Feline Leukemia Symptoms Signs Causes and Care
Feline Leukemia Symptoms Signs Causes and Care

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 ...

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 ...

Cat Leukemia Causes Signs and Treatment
Cat Leukemia Causes Signs and Treatment

Feline Leukemia

Discover how feline leukemia in cats spreads, its symptoms, and how to protect your cat through testing, vaccination, and early care.

Feline leukemia virus (FeLV) is a contagious retrovirus that suppresses immunity and causes severe illness. FeLV is spread through saliva, blood, and other secretions, but cannot infect humans or non- feline animals. Preventive measures like testing, vaccination, and avoiding exposure to infected cats help protect against FeLV.

Cat Leukemia Causes Signs and Treatment
Cat Leukemia Causes Signs and Treatment

Feline Leukemia (FeLV)

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 .

Cats Cat Health Diseases and Conditions 8 Early Warning Signs of Feline Leukemia Virus (FeLV) The first signs of feline leukemia can be tricky to detect. If you have a cat , here's what to look for.

How Do I Know If My Cat Has Feline Leukemia Signs and Symptoms
How Do I Know If My Cat Has Feline Leukemia Signs and Symptoms

Feline Leukemia Virus

Pete Wedderburn, DVM explains the causes, symptoms, and treatment of Feline Leukemia . Keep reading to demystify this condition.

Feline Leukemia Symptoms Causes And Care
Feline Leukemia Symptoms Causes And Care
What you Need to Know about Cat Leukemia OliveKnows
What you Need to Know about Cat Leukemia OliveKnows
What is feline leukemia
What is feline leukemia
Feline Leukemia
Feline Leukemia
Feline Leukemia Virus FeLV Symptoms Treatment and More
Feline Leukemia Virus FeLV Symptoms Treatment and More
Cat Leukemia Causes Signs and Treatment
Cat Leukemia Causes Signs and Treatment

Feline Leukemia Virus (FeLV) in Cats : Treatment Options, Palliative Care, and How to Know When It's Time for Euthanasia Feline Leukemia Virus (FeLV) is a contagious and often devastating virus that weakens the immune system and can shorten a cat's lifespan. While some cats live for years with the virus, others experience significant complications. This guide will walk you through treatment ...