Cats can provide years of love and companionship for their owners. It is important to realize the extent that your furry feline enriches your life and that in return you owe your cat a safe, happy and healthy life. There are many dangers and diseases that pet cats can be exposed to and it is up you to safeguard your pet against them. One of these diseases is feline immunodeficiency virus or FIV. What is FIV?