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The opossum passes the parasite through feces. Horses contract EPM from contaminated feed or water. Horses cannot pass the disease among themselves; that is, one horse cannot contract the disease from another infected horse. The horse is a dead-end, or aberrant, host of the parasite.
The sporulated oocysts are excreted in the feces of the opossum. Horses are aberrant or dead-end hosts, because only schizonts and merozoites have been identified and confined to the brain in spinal cord after a horse has ingested sporocysts in contaminated water and feed. This disease cannot be passed from horse to horse. [3]
Neospora hughesi is an obligate protozoan apicomplexan parasite that causes myelitis and equine protozoal myeloencephalitis (EPM) in horses, and has only been documented in North America. [1] EPM is a neurological disease from lesions in the spinal cord, brain stem, or brain from parasites such as N. hughesi or Sarcocystis neurona. [2]
Potomac Horse Fever (PHF) is a potentially-fatal febrile illness affecting horses caused by the intracellular bacterium Neorickettsia risticii. PHF is also known as Shasta River Crud and Equine Monocytic Ehrlichiosis .
Pages in category "Horse diseases" The following 107 pages are in this category, out of 107 total. This list may not reflect recent changes. 0–9.
Borna disease, also known as sad horse disease, [1] is an infectious neurological syndrome [2] of warm-blooded animals, caused by Borna disease viruses 1 and 2 (BoDV-1/2). BoDV-1/2 are neurotropic viruses of the species Mammalian 1 orthobornavirus, and members of the Bornaviridae family within the Mononegavirales order.
The incubation period for Eastern equine encephalitis virus (EEEV) disease ranges from 4 to 10 days. The illness can progress either systematically or encephalitically, depending on the person's age. Encephalitic disease involves swelling of the brain and can be asymptomatic, while the systemic illness occurs very abruptly.
Equine polysaccharide storage myopathy (EPSM, PSSM, EPSSM) is a hereditary glycogen storage disease of horses that causes exertional rhabdomyolysis.It is currently known to affect the following breeds American Quarter Horses, American Paint Horses, Warmbloods, Cobs, Dales Ponies, Thoroughbreds, Arabians, New Forest ponies, and a large number of Heavy horse breeds.