Feline Leukemia Virus

Feline Leukemia Virus (FeLV) is a usually fatal disease affecting the cat's immune system. This increases susceptibility to other disease in addition to causing leukemia. Signs of feline leukemia virus include weight loss, recurring or chronic illness, lethargy, fever, diarrhea, unusual breathing patterns, and a yellow color around the mouth and the whites of the eyes. A blood test is necessary to prove that the feline leukemia virus is present.

Until recently, there was no vaccine available to fight this usually fatal disease. A newly developed inactivated virus vaccine can protect cats.