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"...While coccidian organisms can infect a wide variety of animals, including humans and livestock, they are usually species-specific. One well-known exception is toxoplasmosis, caused by Toxoplasma gondii....
"...Genus Isospora is the most common cause of intestinal coccidiosis in dogs and cats and is usually what is meant by coccidiosis. Species of Isospora are species specific, meaning they only infects one type of species....
"Genus Cryptosporidium contains two species known to cause cryptosporidiosis, C. parvum and C. muris. Cattle are most commonly affected by Cryptosporidium, and their feces are often assumed to be a source of infection for other mammals including humans....
"...Genus Toxoplasma has one important species, Toxoplasma gondii. Cats are the definitive host, but all mammals and some fish, reptiles, and amphibians can be intermediate hosts.... Toxoplasmosis occurs in humans..."
Source: http://en.wikipedia.org/wiki/Coccidia DeeAnna The FjordHorse List archives can be found at: http://tinyurl.com/rcepw
