Canadian Medical Guide > Organisms > Viruses > Viroids Terms and Definitions

Viroids

Medical Definition:	A group of pathogens comprising the smallest known agents of infectious disease. They are unencapsulated and are capable of replicating autonomously in susceptible cells. Positively identified viroids composed of single-stranded RNA have been isolated from higher plants, but the existence of DNA viroids pathogenic to animals is suspected.
Guide Notes:	"smallest known agents of infect dis"; read MeSH definition
Previously Indexed:	Plant Viruses (1971-1980),RNA, Viral (1971-1980)

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