What is Feline Leukemia Virus?
Feline Leukemia (abbreviated FeLV) is a very contagious disease spread between cats. It is spread through saliva, therefore making it very contagious. It suppresses the immune system making them susceptible to many illnesses. Kittens can be born with it, or cats can contract it at any time in their lives and harbor it in their systems for years before showing any signs. A test is recommended prior to vaccination, yet not required. Vaccinations can be given without a test, because the vaccine will not help or hurt them if they prove to be positive.