This negatively-stained transmission electron micrograph (TEM) revealed the presence of Rubella virus virions, as they were in the process of budding from the host cell surface to be freed into the host's system, thereby, producing an enveloped virus particle, which means that after budding, the spherical virions' icosahedral capsid is enclosed in the host cell membrane. Inside the capsid lies the Rubella virus' positive-sense single-stranded RNA (( )ssRNA) genome. The Rubella virus is known to be the cause of rubella, otherwise known as German measles.
CDC/ Dr. Fred Murphy; Sylvia Whitfield
December 2, 2012
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