PHOTO: EAST NEWS/BSIP
This electron micrograph reveals a number of RNA rotavirus virions, and a number of unknown, 29nm virion particles.
A rotavirus has a characteristic wheel-like appearance when viewed by electron microscopy, i.e., rotavirus is derived from the Latin rota, meaning "wheel". Rotaviruses are nonenveloped, double-shelled viruses, making the virus stable in the environment.