File:Equine Protozoal Myeloencephalitis.jpg

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Summary

Description	Equine Protozoal Myeloencephalitis.jpg Sarcocystis neurona stages and lesions. (A). Cross section of spinal cord of horse with focal areas of discoloration (arrows) indicative of necrosis. Unstained. (B). Section of spinal cord of a horse with severe EPM. Necrosis, and a heavily infected neuron (arrows), all dots (arrows) are merozoites. H and E stain . (C). Higher magnification of a dendrite with numerous merozoites (arrows). One extracellular merozoite (arrowhead) and a young schizont (double arrowhead). (D). Section of brain of an experimentally-infected mouse stained with anti-S. neurona antibodies. Note numerous merozoites (arrows). (E). Immature schizonts in cell culture. A schizont with multilobed nucleus (arrow) and a schizont with differentiating merozoites (arrowheads). Giemsa stain. (F). Mature sarcocysts with hairlike villar protrusions (double arrowheads) on the sarcocyst wall. H and E stain. (G). Mature live sarcocyst with numerous septa (arrows) and hairlike protrusions on the sarcocyst wall (double arrowheads). Unstained. (H). An oocyst with two sporocysts each with banana-shaped sporozoites. Unstained.
Date	July 2005
Source	USDA Agricultural Research Service page on EPM/Sarcocystis neurona, located at Wikimedia Commons
Author	Agricultural Research Service, the research agency of the United States Department of Agriculture.
Permission (Reusing this file)	Public Domain

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:48, 15 July 2010		329 × 336 (151 KB)	Nmr28 (talk \| contribs)	{{Information \|Description=Sarcocystis neurona stages and lesions. (A). Cross section of spinal cord of horse with focal areas of discoloration (arrows) indicative of necrosis. Unstained. (B). Section of spinal cord of a horse with severe EPM. Necrosis,

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