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Zoonotic Diseases

  • Anaplasmosis is a tick-borne disease caused by the infectious bacterial organism Anaplasma phagocytophilum. It is transmitted through bites of the deer tick (also known as the black-legged tick) and the Western black-legged tick.

  • This handout discusses aspergillosis in dogs, an infection, growth, or allergic response caused by the Aspergillus fungus. If your dog becomes infected, it can be confined to the nasal passages (nasal aspergillosis), or it can spread throughout the body (systemic aspergillosis). The clinical signs, diagnosis, treatment, and prognosis of both conditions are outlined.

  • Babesiosis is a tick-borne infection caused by protozoal parasites of the Babesia genus. Babesia invades mammalian red blood cells, causing anemia. The disease primarily spreads through an infected tick's bite or when an infected dog with oral lesions bites another dog.

  • Brucellosis is a contagious bacterial infection that can cause a number of reproductive problems, including infertility and abortion in breeding dogs. Male dogs infected with brucellosis develop epididymitis, an infection of the testicle. Female dogs infected with brucellosis develop an infection of the uterus. The infection is usually diagnosed by a blood test (rapid slide agglutination test). Treatment with antibiotics is not significantly effective and infected dogs should be removed from the breeding population. In the United States, brucellosis is a reportable disease.

  • Campylobacteriosis is a bacterial intestinal infection usually acquired by exposure to raw meat, poultry, or infected water, but can be spread between pets and humans. Signs of infection are watery or mucoid diarrhea with straining, possible cramping, lethargy, and fever. Testing, treatment and prevention are discussed.

  • Capillaria is a small internal parasite that is closely related to intestinal worms, though they can live in a variety of locations within the body. Diagnosis can be difficult because the eggs intermittently. Dogs acquire Capillaria infections from the environment. This handout outlines diagnosis, treatments, and prevention.

  • COVID-19 is a viral respiratory disease of humans that was first discovered in late 2019. The illness is caused by the virus SARS-CoV-2, which is a new coronavirus that has not previously been identified in humans. Certain animals can be infected by the COVID-19 virus, but it appears to be infrequent. Dogs and cats seldom show severe clinical illness if infected with COVID-19.

  • This handout summarizes Chagas disease in dogs. Caused by a protozoal parasite called Trypanosoma cruzi, it is spread by the bite of infected insects or ingestion of infected insects and rodents. The clinical signs of the condition, along with its treatment, prevention, and risk to human health are outlined.

  • Cheyletiellosis in rabbits is a condition caused by the common rabbit mite, Cheyletiella parasitovorax. This mite’s effects are sometimes called "walking dandruff" because they are large, whitish mites that crawl across the skin and hair of a rabbit and cause excessive flaky skin. Other clinical signs of cheyletiellosis include itching, scratching, and hair/fur loss. This species of mites can live in the environment for a short time and affect people and other animals, so it is important to follow your veterinarian's recommendations for treating the environment and all pets in the household.

  • Chlamydiosis (psittacosis, parrot fever, ornithosis) is a common disease of birds caused by a bacterial organism. The disease can cause chronic infections, infections without visible symptoms, or sudden death. The disease can also be transmitted to people, but it is not associated with the venereal form of chlamydia.