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Parasites + English

  • Cheyletiellosis is an uncommon but highly contagious skin parasite of dogs, cats, humans, and rabbits caused by Cheyletiella spp. mites. The most important clinical sign of cheyletiellosis is scaling or dandruff. Due to the large size of the skin mite, it is easily seen under a microscope set on low magnification. Cheyletiella mites are susceptible to most topical insecticides and the prognosis is excellent.

  • Coccidial organisms, including Eimeria, are parasites that can infect rabbits, especially young and recently weaned rabbits. These organisms invade the intestinal tract of young rabbits and can progress to cause a fatal infection of the liver in many cases. Many rabbits show no signs, but if they do, they may have infrequent or intermittent watery, mucousy, or blood-tinged diarrhea. If your rabbit's diarrhea progresses to moderate to severe in intensity, your veterinarian will hospitalize your rabbit to provide supportive care until it is well enough to go home.

  • Coccidia are single-celled organisms that can act as a parasite after infecting your cat through the gastrointestinal tract. The most common form affecting cats, Isospora, is not a concern for infecting people, unlike Toxoplasma. They are highly resistant to environmental conditions, so cleanliness is important to prevent re-infection. Treatment is often simple with the appropriate antibiotics prescribed by your veterinarian.

  • Coccidia are single-celled organisms that can act as parasites after infecting your dog through the gastrointestinal tract. The most common form affecting dogs, Isospora, is not a concern for infecting people. They are highly resistant to environmental conditions and cleanliness is important to prevent re-infection. Treatment is often simple with the appropriate antibiotics prescribed by your veterinarian.

  • Turtles may be affected by one of the following diseases: metabolic bone disease (MBD), vitamin A deficiency, respiratory diseases, abscesses, shell infections, shell fractures, and parasites. Improper diet, poor water filtration, and lack of UV light are contributing factors for many aquatic turtle diseases. Seek immediate veterinary care if your aquatic turtle shows any deviation from normal.

  • Common conditions of pet snakes include infectious stomatitis (mouth rot), parasites, skin infections, respiratory disease, septicemia, and viral diseases such as inclusion body disease (IBD). Signs may be specific for a certain disease or non-specific, such as lack of appetite and lethargy, which can be seen with many diseases. Any deviation from normal is a cause for concern and should be evaluated by your veterinarian as soon as possible. This handout outlines how to know your snake is sick and the treatments for common conditions.

  • Cryptosporidium is a species of single-celled parasite that can infect your dog through the gastrointestinal tract. Clinical signs such as diarrhea and weight loss may only be seen in immunosuppressed patients, including puppies. These patients may need supportive care and other treatment to control disease. Certain Cryptosporidium species can be spread between pets and humans, making this parasite zoonotic.

  • Cuterebra are botflies that spend the larvae stage of their lifecycle within rodent or rabbit hosts and can accidentally infect dogs. They enter through the nose, mouth or a skin wound. They usually develop a cyst under the skin that can be located as it enlarges and often a breathing hole can be seen. The larva (warble) will leave the dog when it is ready to form a pupa but it will often leave behind a secondary bacterial skin infection or abscess in the empty cyst. Rarely, the larva/cuterebra migrate aberrantly through the dog causing inflammation and damage to different tissues, including the brain and eyes, and even potentially cause a severe systemic inflammatory response. Treatment depends on what damage has been done and can include removal of the warble, debridement or removal of the cyst, antibiotics and symptomatic and supportive treatment of the results of aberrant migration. Prognosis is generally good if only the skin is involved. Cuterebra infection can not be prevented easily, so monitoring the dog regularly for signs is important.

  • Cuterebra is the scientific name for the North American rabbit or rodent botfly. Cats are accidental hosts of Cuterebra larvae, and they are rarely evident from external skin inspection. A hole enlarges when the warble has matured, often leading to an infected empty cyst. Treatment depends on when the condition is discovered, and in many cases, antibiotics are used to treat secondary infections.

  • 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.