Suggested Articles LymphomaFelineVaccines: Benefits and Risks Diarrhea Neurological DisordersFelineVision Problems: A Host of Possible CausesFelineleukemiavirus (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 ...
What isFelineLeukemiaVirus (FeLV)?FelineLeukemiaVirus is one of the most common infectious diseases in cats, affecting 2-3% of all cats in the U.S. The virus can cause cancer, blood disorders, and immune deficiency, which makes cats more susceptible to other infections. Cats that test positive for FeLV tend to have shorter lifespans, however during the early stages of infection, cats may ...

The American Association ofFelinePractitioners' 2020 guidelines recommends FeLV vaccination for all kittens up to and including 1 year of age, especially in areas of high infection, because they are more susceptible to progressive infection, FeLV-associated disease and death if exposed to FeLV compared with adult cats.

FeLV stands forFelineLeukemia. This is one of the most common infectious diseases in cats, affecting about 2-5% of cats in the United States and Canada.
When people hear the term FeLV—felineleukemiavirus—there's often an immediate reaction of fear and misunderstanding. This virus, unfortunately, carries a stigma, largely due to myths that FeLV-positive cats are destined for short, miserable lives. But let's take a closer look and separate fact from fiction.