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Table 7 Virus and subclass definitions from VIDO

From: The Infectious Disease Ontology in the age of COVID-19

Term Definition
virus Acellular structure with RNA or DNA genetic material which uses host metabolic resources for RNA or DNA replication.
positive-sense single-stranded RNA virus Virus with genetic material encoded in single-stranded RNA that can be translated directly into proteins.
virus disorder Infectious disorder that exists as a result of a process of formation of a disorder initiated by a virus.
viral disease Infectious disease inhering in a virus disorder that is a disorder due to the presence of the virus.
viral disease course Infectious disease course whose physical basis is a virus disorder that is clinically abnormal in virtue of the presence of the relevant virus.
symptomatic carrier role (IDO Core) Pathogen host role borne by an organism whose extended organism contains a pathogen bearing an infectious disposition towards the host, and the host has manifested symptoms of the infectious disease caused by the pathogen.
asymptomatic carrier role (IDO Core) Pathogen host role borne by an organism whose extended organism contains a pathogen bearing an infectious disposition towards the host, and the host has no symptoms of the infectious disease caused by the pathogen.
subclinical infection (IDO Core) Infection that is part of an asymptomatic carrier.
subclinical virus infection Subclinical infection that is part of a virus host.