Like any animal, horses are susceptible to a wide range of parasites. Of the approximately 150 species of internal equine parasites, some can cause serious harm while others are more of an annoyance. Usually parasite eggs or larvae arrive on the ground from the manure of infected horses. Another horse

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Toxoplasmosis is a disease caused by a parasite named Toxoplasma gondii (T. gondii). This parasite is very common and shows up in pets, people and nearly all other warm-blooded mammals. In spite of this, the parasite does not usually cause any real problems in cats. Life Cycle of the Toxoplasmosis Parasite T.

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While more common in dogs, cats also suffer from deadly heartworm infestation. Heartworms, spaghetti-like white creatures, can measure 1-foot long and cause an inflammatory response in your pet’s heart and lungs. Heartworms are especially prevalent in hot, humid parts of the country, especially in

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Fleas and ticks are very common in animals with fur. They hop onto your cat and make their way to the skin of the animal, where they proceed to feed on your pet’s blood. They also find your cat’s warm, soft fur to be the perfect breeding ground. Fleas can be obtained when cats go outdoors or come

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Tapeworms live in the digestive tracts of vertebrates as adults and often in the bodies of various animals as juveniles. In a tapeworm infection, adults absorb food predigested by the host, so the worms have no need for a digestive tract or a mouth. Large tapeworms are made almost entirely of reproductive

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There are many types of roundworms, but some of the most common are intestinal parasites of dogs, cats, and raccoons. Puppies are frequently born with roundworms, and kittens can be infected via the mother's milk or feces. Adult roundworms are ivory colored, four to six inches long, and round (not flat

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There are many types of parasites that are found in the GI tract of cats and dogs. Worms such as roundworms, whipworms, and hookworms are very common in almost all parts of the world. These parasites shed their infective eggs in the pet's stool and contaminate the environment; some eggs can live on yards

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Hookworms are small, thread-like parasites of the small intestine where they attach and suck large amounts of blood. These parasites are found in almost all parts of the world, being common in dogs, and occasionally seen in cats. Symptoms are usually diarrhea and weight loss. The parasites can actually

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There are many types of mites that infect dogs, cats, and other animals. Mites are microscopic arthropod parasites that, for the most part, infect the skin or mucous membranes. Mites can even be present on birds and reptiles. The most common mites that infect dogs and cats are ear mites, Demodex, scabies,

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Heartworm has been diagnosed in dogs in all parts of the world and is actually very common. This may be due to the fact that heartworm has a virtual 100% prevalence rate in unprotected dogs living in highly endemic areas. Heartworm, also known as Dirofilaria immitis, is transmitted by mosquitoes. The

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A common parasite, fleas are found in almost every area of the world and can be found on dogs, cats, and many other mammals. They survive year to year even in cold climates because they live on pets, in buildings, and on wild animals. There are four stages to the flea life cycle. Eggs are laid by an

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Ticks are the small wingless external parasites, living by hematophagy on the blood of mammals, birds, and occasionally reptiles and amphibians. Ticks are blood-sucking parasites that are often found in freshly mown grass, where they will rest themselves at the tip of a blade so as to attach themselves

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