Illustrated Articles

Zoonosis & Human Health

  • Diarrhea is the passage of feces as unformed or loose stools, usually in increased volume and frequency of passage. It is a result of increased speed of passage of fecal material through the intestine combined with decreased absorption of water, nutrients and electrolytes.

  • Diarrhea is the passage of unformed or loose stools, usually in increased volume and/or increased frequency. Diarrhea is not a disease but rather a symptom of many different diseases. Diarrhea associated with minor conditions can often be resolved quickly with simple treatments.

  • The most common flea found on cats and dogs is the cat flea (Ctenocephalides felis), although any species of fleas, including fleas from rabbits, squirrels or other wildlife, can be found on cats.

  • Giardiasis is an intestinal infection of man and animals cased by a microscopic protozoan parasite Giardia duodenalis. Giardia is a simple one-celled parasitic species; it is not a "worm", bacteria, or virus.

  • Unfortunately, our pets do not live as long as we do. In fact, compared with us they live relatively short lives and although we realize this, nevertheless when the time comes to say goodbye, we experience feelings and emotions that sometimes embarrass us, and often confuse us.

  • Hookworms (Ancylostoma caninum, Ancylostoma braziliense) are intestinal parasites of the cat and dog that get their name from the hook-like mouthparts they use to anchor themselves to the lining of the intestinal wall. They are only about 1/8" (3 mm) long and so small that it is very difficult to see them with the naked eye.

  • Iguanas have several unique disease problems; understanding these problems will allow you to better care for your pet and minimize future health care problems.

  • This handout is designed to give you an overview of some of the internal parasites that can infect your cat. For more detailed information, refer to our separate information sheets on roundworms, hookworms, whipworms, tapeworms and heartworms.

  • This handout is designed to give you an overview of some of the internal parasites that can infect your dog. There are also separate information sheets on roundworms, hookworms, whipworms, tapeworms and heartworms that will provide you with more details.

  • Leishmaniasis is a disease caused by a protozoan parasite found in dogs and certain rodents in many parts of the world, most commonly in rural areas. The parasite is transmitted by a small biting sand fly (Phlebotomus spp.). It is an important disease because humans can also contract Leishmaniasis.