Skip to main content

Library

Dogs + Parasites

  • Demodectic mange is caused by a parasitic mite that lives in the hair follicles of dogs. As long as the body's immune system is functioning properly, these mites cause no harm. Demodectic mange most often occurs when a dog has an immature or weakened immune system, allowing the number of skin mites to increase rapidly. Topical, oral, and injectable medications are available to treat demodectic mange.

  • Diarrhea is a symptom of an underlying problem that may be minor or very serious. Some cases may resolve on their own or with minimal treatment, while other cases require in-depth diagnostic testing and more aggressive treatment to address the underlying condition. The possible causes, diagnostic tests, and treatment protocols for diarrhea in dogs are numerous and are explained in this handout.

  • 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.

  • Echinococcosis refers to being infected with a tapeworm of the genus Echinococcus and is primarily a parasite of coyotes and foxes. Infected dogs are usually asymptomatic, but in both dogs 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.

  • Fleas are the most common nuisance and parasite affecting dogs, and an infestation can lead to serious health problems. Flea control requires a three-pronged approach; they need to be eliminated from 1) your dog, 2) any other cats and dogs that you have, 3) your home and yard. There are many flea control products available and your veterinarian can help you determine which are the safest and most effective for your pets.

  • Fluralaner is given by mouth or applied topically and is used to treat flea and tick infestations, and also off-label to treat certain types of mange and mites. Give as directed. Side effects are uncommon but may include stomach upset or neurologic symptoms. Do not use in pets with a history of seizures. If a negative reaction occurs, please call the veterinary office.

  • Giardiasis is an intestinal infection of man and animals caused by a protozoan parasite Giardia intestinalis (also known as Giardia lamblia). Giardia is a simple one-celled parasitic species; it is not a "worm", bacteria or virus. The parasite occurs worldwide and is a common cause of "Traveler's Diarrhea" in people.

  • Harvest mites, also known as red bugs, trombiculid mites, scrub-itch mites, berry bugs or, in their larval stage, as chiggers, are mites commonly found in forests and grasslands. Larval stages affect warm-blooded animals and cause a very itchy skin reaction.

  • Heartworm disease is a serious and potentially fatal disease. It is caused by a blood-borne parasite known as Dirofilaria immitis. Adult heartworms may live for five to seven years and, during this time, the female produces millions of offspring called microfilaria. You can prevent your dog from getting heartworms by using a heartworm preventive.

  • Heartworm treatment involves several components to combat potential bacterial infection, kill heartworm larvae (microfilaria), kill adult heartworms, and then test to confirm successful treatment. Complete rest for a dog undergoing treatment is essential.