Feline Leukemia Virus (FeLV)

Feline Leukemia Virus ( FeLV ) Last year, we lost a couple of cats we adopted that we knew had feline leukemia virus . I found that most vets who were doing triage were not very well informed about the virus . Most of them recommended euthanasia when our first cat Twig ended up with pretty severe anemia, without any explainations of alternate ...

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 Virus Brochure

Feline Leukemia Virus Brochure What is feline leukemia virus ? Feline leukemia virus ( FeLV ), a retrovirus, so named because of the way it behaves within infected cells.
Feline Leukemia Signs and Symptoms Cats with Feline Leukemia become immunocompromised, which may lead to a range of secondary health issues. Pete Wedderburn / Cats.com The main effect of persistent FeLV infection is the suppression of the cat's immune system. This has a number of effects on the cat's body. Feline leukemia may cause the ...

A Cat Owner's Guide to Feline Leukemia Virus (FeLV)
Get more information about feline leukemia virus ( FeLV ), its symptoms, prevention and how to protect your cat from this contagious and fatal disease.
Feline leukemia ( FelV ) is an incurable disease that can affect a cat's immune system and cause cancer. Learn about symptoms, treatment, and the vaccine.

Feline Leukemia Virus (FeLV)
Quick Facts: FeLV is a retrovirus that compromises a cat's immune system. 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. In rare instances, FeLV can spread through ...
Feline leukemia virus , a retrovirus, is a common infection of cats. It is the cause of more cat deaths, directly or indirectly, than any other organism and is widespread in the cat population.

Feline Leukemia Virus (FeLV)
Feline Leukemia Virus ( FeLV ) is one of the most common and serious infectious diseases affecting cats worldwide. Despite its name, FeLV isn't a form of cancer itself — it's a retrovirus that weakens a cat's immune system, making them highly susceptible to secondary infections, anemia, and yes, in some cases, certain types of leukemia .





Feline leukaemia virus ( FeLV ), a gammaretrovirus of domestic cats, is a member of the Orthoretrovirinae subfamily of retroviruses. It contains a protein core with single-stranded RNA protected by an envelope.