Roundworms
The most common intestinal parasite of the cat is the roundworm, Toxocara cati. Roundworms are acquired when cats eat an infected host, such as mice, birds, or insects. Kittens may acquire roundworms during nursing from an infected queen.
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Tapeworms
Tapeworms are parasites of the small intestine that typically cause few signs of illness in an infected cat. The most common tapeworm in the cat is Dipylidium caninum. Adult tapeworms are ribbon-like worms and can grow up to a few feet in length. [Read more]

Hookworms
The cat is host to three types of hookworms, The most commonly found is A. tubaeforme. These small intestinal parasites are usually acquired by ingestion of feces, which contain infective larvae, although they can also be acquired through skin penetration. [Read more]

Coccidiosis
Coccidiosis is caused by the protozoal parasite Isospora. It is thought that almost all cats will become infected with Isospora in their lifetime. These protozoan parasites primarily inhabit the small intestine of cats and most infections cause no clinical signs of illness. Kittens are most likely to show signs of diarrhea (sometimes with blood or mucus), and in rare cases, may die. [Read more]

Giardia
Giardia is the most commonly diagnosed intestinal parasite found in humans, and its distribution is worldwide. While the infection rate in cats is lower, it also often goes undiagnosed. Giardia can be found in the small intestine of many types of animal. The question of whether dogs and cats can function as a reservoir for human infections is unclear, but precautions should be taken. [Read more]




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