Feline Leukemia (FeLV) Vaccines for Cats
Feline Leukemia is a preventable disease in household cats , through vaccination and reduction of risk factors in their environment. Learn more here...
Feline Leukemia Virus ( FeLV ) is a common infectious disease of cats , affecting approximately 3% of cats in the United States. The FeLV retrovirus is transmitted via close contact with other cats , and is most commonly spread in the saliva of infected cats ; however, nasal secretions, urine, feces, and milk may also play a role in transmission.
Feline Leukemia (FeLV) Vaccines for Cats
Feline Leukemia ( FeLV ) is a serious viral infection that can be prevented through vaccination. While the vaccine is generally recommended for cats who spend time outdoors, the decision to vaccinate should be based on the pet's lifestyle and a discussion with a veterinarian. FeLV is not curable, making prevention through vaccination crucial. In this article, an expert veterinarian answers ...
A cat tests positive for FeLV on the in-clinic SNAP test. The veterinarian uses the word " leukemia " and the room goes quiet. Owners hear " leukemia " and brace for the worst. Many shelters and rescues, faced with a positive cat , default to euthanasia. The reality of FeLV is more nuanced than the name suggests, and substantially better than the worst-case picture, but it is also genuinely more ...
Feline Leukemia Virus Vaccination
The Feline Veterinary Medical Association (FelineVMA) currently recommends FeLV vaccination for all kittens, then vaccination one year later, and then as needed for adult cats . Although the FeLV vaccine is not considered a core vaccine in adult indoor cats , it is highly recommended for cats that spend time outdoors.
Feline leukemia virus ( FeLV ) is a gammaretrovirus and one of the most common causes of infectious disease in cats worldwide. Various studies estimate the prevalence of FeLV to be between 2% and 3.5% in the United States and Canada. The development and use of accurate diagnostic tests and vaccinations has led to a decrease in the prevalence of FeLV since its discovery more than 50 years ago ...
Feline Leukemia Vaccine (FeLV) Guide
The feline leukemia ( FeLV ) vaccine is not a vaccine that provides 100% absolute protection . However, when administered at the right time, to the right cats , and with the appropriate protocol , it significantly reduces the risk of infection and lowers the likelihood of a severe course of the disease.
Kitten vaccination schedule (USA 2026) based on AAHA & AAFP feline vaccination guidelines — FVRCP, FeLV , and Rabies timing from 6 weeks, with US cost ranges, core vs non-core vaccines , and how to track shots with PetCare AI.
Feline Leukemia Vaccine (FeLV) for Cats
The feline leukemia vaccine helps protect cats against the feline leukemia virus ( FeLV ). Learn how it works, its side effects, and if your cat needs it.
Guideline-based guide to the FeLV vaccine : who needs it, why testing comes first, how risk categories change revaccination, and when adult cats can stop receiving it.