Feline leukemia virus is a retrovirus that infects cats. FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved.
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).
Only about 3% of cats in single-cat households have the virus, but for cats that spend time outdoors, the rate is much higher. Still, the prevalence of FeLV has decreased over the last 25 years because of vaccines and reliable tests. Symptoms of Feline Leukemia Virus.

Feline leukemia virus (FeLV) is one of the most common infectious causes of disease of cats globally. Infection with FeLV can cause a variety of clinical signs, impacting a cat's longevity and quality of life. Vaccination and identification of infected cats is important in preventing disease transmission. Etiology and Pathogenesis |
Feline leukemia virus (FeLV) affects a significant, though declining, percentage of cats worldwide; while prevalence varies geographically and by lifestyle, its estimated that 26% of cats are infected, making FeLV a serious health concern.

Furthermore, visual representations like the one above help us fully grasp the concept of Leukemia In Cats Statistics Prevention.
Feline leukemia (FeLV) is a contagious disease and is the most common cause of cancer in cats. Find out how you can protect your cats from catching this incurable virus.
Prevention of Feline Leukemia. Cats over four months of age are significantly more resistant to infection.Feline Leukemia a contagious and rapidly spreading disease of cats. The disease can be prevented by proper vaccinating of the queen and kitten at an adequate age.
Feline Leukemia Virus remains an important health concern for cats, with an impact on 2-3% of the feline population in the United States. In cats that are already ill or at higher risk, the infection rates are significantly greater, reaching up to 30% in some cases.