Illustrated Articles

  • Feline herpes viral conjunctivitis is a form of primary conjunctivitis caused by the highly infectious feline herpesvirus (FHV-1), which is the most common cause of conjunctivitis in cats. This handout outlines the clinical signs, diagnosis, treatment, and prognosis for affected cats.

  • Feline idiopathic cystitis (FIC) includes a set of clinical signs associated with abnormal urination and is the diagnosis when there is no identifiable cause of the clinical signs. Cats often suffer waxing and waning of symptoms such as straining to urinate, blood in urine, and inappropriate urination. Treatment and prognosis are discussed.

  • This handout provides information on Feline Immunodeficiency Virus (FIV) in cats. Included is information on how the disease is transmitted, the clinical signs, the recommendations for isolation of the infected cats, and potential treatment guidelines should your cat be infected with this virus.

  • FIP results from a mutation of Feline Enteric Coronavirus. Many of the clinical signs of FIP are vague and occur with other diseases found in cats. Most cats will develop the wet or effusive form of FIP, which refers to the accumulation of fluid in body cavities. Unfortunately, there are no laboratory tests available that can distinguish between the enteric coronavirus and the FIP-causing strains. Supportive treatments may extend longevity and improve quality of life. New treatments showing success are still under evaluation.

  • FIP is one of the most challenging diseases to diagnose because feline coronaviruses are commonly found in the intestinal tract of many healthy cats. When this virus mutates or changes, clinical disease occurs. Unfortunately, routine blood testing for feline coronavirus is not clinically useful. Instead, testing is restricted to those cats in which a diagnosis of FIP is strongly suspected due to clinical signs and other supportive laboratory data. Histopathology remains the best way to diagnose FIP in the living cat.

  • Feline leukemia virus is a virus that infects cats and can cause a variety of diseases in addition to leukemia. It suppresses the immune system and makes cats susceptible to infections and disease, including causing cancers. It is transmitted between cats through the exchange of bodily fluids, although usually an extended period of contact is necessary. It is easy to diagnose, but there is no cure for it. There is a vaccine available that is recommended based on a cat's lifestyle and risk factors.

  • Feline leukemia virus (FeLV) is a virus that infects only cats. It depresses the immune system and cats tend to remain infected for life. FeLV vaccines have been available for many years and have been continuously improved upon. They are helpful in preventing infection with FeLV and, therefore, in controlling FeLV-related disease. Your veterinarian can discuss the pros and cons of vaccinating your cat against this disease based on her specific lifestyle and risk of exposure.

  • Feline panleukopenia (FPL), sometimes also called feline distemper, is caused by a virus of the parvovirus family known as feline panleukopenia virus (FPLV). The virus is present in all excretions, particularly the feces, of infected cats. A susceptible cat can be infected by direct contact with an infected cat, or the virus can be transferred via contaminated water, food bowls, or on shoes and clothing. Clinical signs include rough or dry haircoat, dehydration, depression or listlessness, and collapse. If the gastrointestinal tract is affected, vomiting and diarrhea occur frequently. If the cat receives aggressive supportive care through the initial stages of illness, the prognosis for a full recovery is good. Fortunately, excellent vaccines are available and are part of the core feline vaccination program.

  • Feline upper respiratory infection (URI) is one term for a respiratory infection caused by one or more viral or bacterial agents. Synonyms for this condition include feline infectious respiratory disease and feline upper respiratory disease complex (URD).

  • An FHO, or femoral head ostectomy, is a surgical procedure that aims to restore pain-free mobility to a diseased or damaged hip by removing the head and neck of the femur (the long leg bone or thighbone). This procedure is commonly recommended for cats, especially those who are at a healthy weight. Active cats often experience better results with FHO than less-active cats. It is important to follow your veterinarian's post-operative instructions. Most cats will show signs of complete recovery approximately six weeks post-operatively.