Educational Articles
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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. In many cases, earthworms serve as the source of Capillaria infection. This handout outlines diagnosis, treatments, and prevention.
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Coccidiosis is an intestinal tract infection caused by a single-celled organism (protozoa) called coccidia. Coccidia are microscopic parasites that live within the cells that line the intestine. The most common clinical sign of coccidiosis is diarrhea, but most cats have no clinical signs.
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Cuterebra is the scientific name of the North American rabbit or rodent botfly. Cats are accidental hosts of Cuterebra larvae (also called warbles). Botfly larvae encyst (burrow in) the skin. A small “breathing hole” is often visible in the skin over the warble, and this hole can become infected when the larvae matures and leaves. Signs and treatment are discussed.
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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.
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The ear mite is a surface mite that lives on cats, dogs, rabbits, and ferrets. It is usually found in the ear canal, but can also live on the skin surface. Mites are barely visible to the naked eye. Clinical signs of infestation may include ear irritation leading to scratching at the ears or head shaking, dark discharge from the ear, areas of hair loss from self-trauma, a crusted rash around or in the ear, or aural hematoma.
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Esafoxolaner + eprinomectin + praziquantel is given topically on the skin to treat and protect against various internal and external parasites and prevent heartworm in cats. Side effects are rare but may include hair loss at the application site, gastrointestinal upset, skin reactions, or neurologic signs. Use caution in sick or underweight cats. If a negative reaction occurs, please call your veterinary office.
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Flea allergy dermatitis (FAD) is a skin condition caused by an allergic reaction to the proteins in flea saliva. Cats usually experience only minor skin irritation in response to flea bites, but in cats with flea allergies, the antigens in flea saliva cause an intensely itchy response. Strict flea control is essential for treatment and prevention.
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Fleas are the most common nuisance and parasite affecting cats, and an infestation can lead to serious health problems. Homes with carpets and central heating provide ideal conditions for the year-round growth of fleas. This handout outlines flea control options for your cat and your home.
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Fluralaner (brand name Bravecto®) is given by mouth or applied topically to treat and prevent flea and tick infestations in dogs and cats. It is sometimes used off label to treat sarcoptic mange, demodectic mange, or ear mites in dogs and cats. It is also sometimes used for skin and ear mites in rabbits and hedgehogs.
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Giardia is a microscopic, parasitic organism that causes an intestinal infection in humans and animals called giardiasis. It is relatively rare in healthy adult cats and more commonly seen in kittens and debilitated adult cats, often occurring in densely populated groups such as catteries or animal shelters. Infected cats may have no signs.
