A group of RNA viruses (family Reoviridae) wheellike in appearance, which comprise a genus, Rota virus, which includes the human gastroenteritis viruses (a major cause of infant diarrhea throughout the world). Separated into groups A–F, rotaviruses can infect a number of vertebrates. They are fastidious, and in vitro culture is difficult.
[L. rota, wheel, + virus]
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Examples: glitazone, GI cocktail, etc.