﻿﻿﻿American Society for the Prevention of Cruelty to Animals ASPCA feline immunodeficiency virus Common Cat Diseases ASPCA FIV Common Cat Diseases FIV, FeLV, ringworm, upper respiratory infections and more Feline immunodeficiency virus (FIV) FIV/FelV tapeworms Common Cat Diseases Feline Immunodeficiency Virus Feline leukemia virus (FeLV) virus that severely compromises a cat's immune system FIV positive American Society for the Prevention of Cruelty to Animals