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Feline leukemia virus (FeLV) is a retrovirus that, like feline immunodeficiency virus (another retrovirus), produces an enzyme known as reverse transcriptase, which allows the retrovirus to inject duplicates of its own genetic matter into the cells it has corrupted. Though closely related, because a

Feline infectious peritonitis (FIP) is a terminal disease that affects cat. Caused by feline infection peritonitis virus (FIPV), it is a mutation of feline enteric coronavirus (FECV) and is more likely to occur in environments where large groups of cats are together, such as animal shelters. The virus

Feline immunodeficiency virus (FIV) is a type of virus that weakens a cat’s immune system and makes it difficult for the cat to fight other infections. This virus affects only felines. Spread of FIV Between 1.5 and 3 percent of healthy cats in the United States are infected with FIV. Cats that roam

Diabetes mellitus is a common disease in which a cat’s body does not make enough insulin or has difficulty using it. This hormone is produced in the pancreas. Its job is to help move glucose from the bloodstream into the body’s cells to provide them with a source of energy. Many cats with diabetes

A diagnosis of anemia means your cat does not have enough red blood cells and/or hemoglobin to carry sufficient oxygen to all of his or her tissues. Each red blood cell lives only 70 to 80 days, so your cat’s body must constantly replenish these. Anemia itself is not a disease; it indicates that some

Cats normally have excellent vision—their eyes are about six times more sensitive to light than a human’s eyes. However, injuries and a variety of diseases can impair a cat’s vision and even cause blindness. You can help your cat keep its eyes healthy by making sure it has regular check-ups and

It is never easy to say goodbye to a cat that has been part of your life for many years. This is even truer when your veterinarian suggests that you consider euthanasia. However, euthanasia may be the most humane way to care for a beloved best friend that is suffering. Is It Time to Say Good-bye? The

Fungi are spore-generating, parasitic organisms. They are able to survive by taking in food from the hosts on which they grow. Cats can develop fungal infections when fungi spores are ingested, inhaled or enter a cut or wound. Common sources of most fungal infections are soil and bird droppings, making