Public Domain Picture: This transmission electron microscope (TEM) reveals some of the ultrastructural morphology exhibited by two Adenovirus-2 virions. The sample

By: CDC/ Dr. John Hierholzer, Courtesy: Public Health Image Library

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This transmission electron microscope (TEM) reveals some of the ultrastructural morphology exhibited by two Adenovirus-2 virions. The sample

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This transmission electron microscope (TEM) reveals some of the ultrastructural morphology exhibited by two Adenovirus-2 virions. The sample

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This transmission electron microscope (TEM) reveals some of the ultrastructural morphology exhibited by two Adenovirus-2 virions. The sample had been pelleted, thereby, concentrating the viral particles prior to viewing under the microscope. Visible at this high magnification are the capsomeress, which in this case were hexagonally-shaped, also called hexons, and which together comprised the outer covering of the adenovirus known as a capsid. These adenoviruses displayed an icosahedral symmetry, which means that the shape was characterized by 12 vertices, and 20 facets. Each virion was 70nm - 80nm, and exhibited no spikes.

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CDC/ Dr. John Hierholzer

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Public Health Image Library

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October 26, 2012

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