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

DNA Viruses

Medical Definition:	Viruses whose nucleic acid is DNA.
Guide Notes:	avoid: too general; prefer specifics; infection = DNA VIRUS INFECTIONS

DNA Viruses Categories.

	Adenoviridae - A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases.
	Ascoviridae - A family of insect viruses causing disease in lepidopterous larvae, most commonly from species of the owlet moth family Noctuidae. There is one genus: Ascovirus.
	Asfarviridae - A family of double-stranded DNA viruses containing one genus Asfivirus. It is the source of AFRICAN SWINE FEVER.
	Baculoviridae - Family of INSECT VIRUSES containing two subfamilies: Eubaculovirinae (occluded baculoviruses) and Nudibaculovirinae (nonoccluded baculoviruses). The Eubaculovirinae, which contain polyhedron-shaped inclusion bodies, have two genera: NUCLEOPOLYHEDROVIRUS and GRANULOVIRUS. Baculovirus vectors are used for expression of foreign genes in insects.
	Badnavirus - A genus of DNA plant viruses with bacilliform morphology. Transmission in clonally-propagated plants is by vegetative propagation of infected plant materials. Transmission in nature is by mealybugs, seeds, pollen, and leafhoppers (rice tungro bacilliform). The type species is Commelina yellow mottle virus.
	Caulimovirus - A genus of PLANT VIRUSES, in the family Caulimoviridae, that are transmitted by APHIDS in a semipersistent manner. Aphid-borne transmission of some caulimoviruses requires certain virus-coded proteins termed transmission factors.
	Circoviridae - A family of very small viruses containing circular, single-stranded DNA and possessing no envelope. The modes of transmission are not known. There is one genus: CIRCOVIRUS.
	Geminiviridae - A family of plant viruses where the virions possess an unusual morphology consisting of a pair of isometric particles. Transmission occurs via leafhoppers or whitefly. Some viruses cause economically important diseases in cultivated plants. There are three genera: Mastrevirus, Curtovirus, and Begomovirus.
	Hepadnaviridae - A family of hepatotropic DNA viruses which contains double-stranded DNA genomes and causes hepatitis in humans and animals. There are two genera: AVIHEPADNAVIRUS and ORTHOHEPADNAVIRUS. Hepadnaviruses include HEPATITIS B VIRUS, duck hepatitis B virus (HEPATITIS B VIRUS, DUCK), heron hepatitis B virus, ground squirrel hepatitis virus, and woodchuck hepatitis B virus (HEPATITIS B VIRUS, WOODCHUCK).
	Herpesviridae - A family of enveloped, linear, double-stranded DNA viruses infecting a wide variety of animals. Subfamilies, based on biological characteristics, include: ALPHAHERPESVIRINAE; BETAHERPESVIRINAE; and GAMMAHERPESVIRINAE.
	Iridoviridae - A family of large icosahedral DNA viruses infecting insects and poikilothermic vertebrates. Genera include IRIDOVIRUS; RANAVIRUS; Chloriridovirus, and Lymphocystivirus.
	Nanovirus - Unassigned genus of plant-infecting viruses containing multiple circular single-stranded DNA molecules. The type species is Subterranean clover stunt virus.
	Papillomaviridae - A family of small, non-enveloped DNA viruses infecting MAMMALS. There is one genus: PAPILLOMAVIRUS.
	Parvoviridae - A family of very small DNA viruses containing a single linear molecule of single-stranded DNA and consisting of two subfamilies: PARVOVIRINAE and DENSOVIRINAE. They infect both vertebrates and invertebrates.
	Phycodnaviridae - A family of DNA plant viruses that infect eukaryotic algae.
	Polydnaviridae - A family of insect viruses isolated from endoparasitic hymenopteran insects belonging to the families Ichneumonidae and Braconidae. The two genera are Ichnovirus and Bracovirus.
	Polyomaviridae - A family of small, non-enveloped DNA viruses, infecting mainly MAMMALS, and containing a single genus: POLYOMAVIRUS.
	Poxviridae - A family of double-stranded DNA viruses infecting mammals (including humans), birds and insects. There are two subfamilies: CHORDOPOXVIRINAE, poxviruses of vertebrates, and ENTOMOPOXVIRINAE, poxviruses of insects.
	Transfusion-Transmitted Virus - An unclassified, non-enveloped DNA virus associated with transfusions and hepatitis. However, no etiological role has been found for TTV in hepatitis, and evidence suggests it is not a HEPATOVIRUS.

DNA Viruses Medical Definitions and Terms

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