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An order comprising three families of eukaryotic viruses possessing linear, nonsegmented, positive sense RNA genomes. The families are Mesoniviridae; CORONAVIRIDAE; ARTERIVIRIDAE; and RONIVIRIDAE.
An order comprising three families of eukaryotic viruses possessing linear, nonsegmented, positive sense RNA genomes. The families are Mesoniviridae; CORONAVIRIDAE; ARTERIVIRIDAE; and RONIVIRIDAE.