Feline Leukemia Virus

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

Learn about the common and advanced symptoms of feline leukemia , including weight loss, lymphoma, skin lesions, anemia, and organ failure. Understand how to diagnose and manage this viral disease.
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. Symptoms 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 ...
Feline leukemia is most common in young cats who go outdoors. Learn to recognize the signs and symptoms of feline leukemia , and how to care for an infected cat. Feline leukemia virus (FeLV) is a contagious retrovirus that suppresses immunity and causes severe illness. FeLV is spread through saliva ...

Feline Leukemia Virus (FeLV)
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.
Discover the causes, symptoms , and treatment options for feline leukemia . Learn how to diagnose and manage this viral disease in cats.

Feline Leukemia Virus (FeLV) Symptoms, Vaccine, Treatment
WebMD explains feline leukemia virus (FeLV), including symptoms , risk factors, treatments, and prevention.
Discover how feline leukemia in cats spreads, its symptoms , and how to protect your cat through testing, vaccination, and early care.

Feline Leukemia Virus
Feline Leukemia Virus 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).









Learn about the veterinary topic of Feline Leukemia Virus Disease. Find specific details on this topic and related topics from the MSD Vet Manual.