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Infectious Diseases

  • Cytauxzoonosis is an often-fatal disease caused by a tick-borne protozoan parasite, typically found in bobcats. It is more commonly seen in the southern United States but is spreading with tick migration. It can cause anorexia, lethargy, respiratory difficulty, anemia, and jaundice. Diagnostic testing, treatment options, and preventives are described in this handout. This disease is not transmissible to dogs or humans.

  • Discospondylitis is a bacterial or fungal infection of the intervertebral discs and the adjacent vertebral bones in the back. It primarily affects dogs, though rarely can affect cats. It affects large-breed dogs more often and generally starts as back pain. This handout outlines the diagnosis and treatment of this condition.

  • Distemper is a highly contagious viral disease of domestic dogs and other animals, such as ferrets, skunks, and raccoons. It is often fatal, and affects the respiratory, gastrointestinal, and central nervous systems. Vaccines are available and are highly effective at preventing disease.

  • Echinococcosis refers to being infected with a tapeworm of the genus Echinococcus and is primarily a parasite of coyotes and foxes. Infected cats are usually asymptomatic, but in both cats and humans the parasite can cause large cysts to form within the lungs and liver. E.multilocularis is treated with praziquantel and in most cases the prognosis is good.

  • Ehrlichiosis is a tick-borne bacterial infection spread by the brown dog tick in North America. There appear to be three stages of disease: acute, sub-clinical, and chronic or clinical. This handout explains clinical signs, diagnosis, treatment, and prevention.

  • There are four Herpesviruses that are widespread in the horse environment and that are associated with a variety of disease syndromes in horses. They are called Equid Herpesviruses 1, 2, 3 and 4 (EHV-1, EHV-2, EHV-3 and EHV-4).

  • Equine Infectious Anemia (EIA), sometimes called 'swamp fever' is an infectious disease that causes acute, chronic or symptomless illness, characterized by fever, anemia, swelling and weight loss in horses, ponies, mules and donkeys.

  • EVA is a highly contagious disease that can cause a 'flu-like' illness of varying severity and occasionally abortion or even death in horses. It is found in many different parts of the world and is endemic (widespread) in many continental European horse populations.

  • Famciclovir (Famvir®) is an antiviral medication used to control feline herpesvirus (FHV-1). It is given by mouth and side effects may include vomiting, diarrhea, decreased appetite, and increased drinking and urination. Do not use it in pets that are allergic to it or penciclovir.

  • Feather loss occurs either because the bird is truly losing feathers or because the bird, or its cage-mate, is picking out its feathers. Feather Destructive Behavior (FDB) is a general classification that describes the many types of damage a bird can do to its own feathers, including feather picking. Feather loss and feather-picking can also be caused by diseases that result in irritation or pain for the bird, or damage to, or inappropriate growth of feathers. Feather loss and feather-picking are complicated problems. For specific advice, your bird should have a thorough work-up by a veterinarian familiar with birds.