MeSH 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.;
MeSH synonym : viroid;
MeSH annotation : smallest known agents of infect dis; read MeSH definition;
Wikipedia link : https://en.wikipedia.org/wiki/Viroid;
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.