FIV

Feline Immunodeficiency Virus or FIV is a lentivirus that infects domestic cats and cheetahs. FIV is the cause of feline AIDS but is not the same virus as Human Immunodeficiency Virus (HIV), the cause of human AIDS.

The prevalence of FIV in domestic cats in North America is estimated to be at a 6% level regardless of whether the cat is owned or feral.

Approximately 15% of cats that test positive for Feline Leukemia (FeLV) also test positive for FIV.