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Viral disease

A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells.[1]

Viral disease

Viral infection

Infectious disease

Virus

Antiviral drugs

Examples are the common cold, gastroenteritis and pneumonia.[2]

Double-stranded families: three are non-enveloped (Adenoviridae, Papillomaviridae and Polyomaviridae) and two are enveloped (Herpesviridae and Poxviridae). All of the non-enveloped families have icosahedral capsids.

DNA

Partly : Hepadnaviridae. These viruses are enveloped.

double-stranded DNA viruses

One family of infects humans: Parvoviridae. These viruses are non-enveloped.

single-stranded DNA viruses

Positive single-stranded families: three non-enveloped (Astroviridae, Caliciviridae and Picornaviridae) and four enveloped (Coronaviridae, Flaviviridae, Retroviridae and Togaviridae). All the non-enveloped families have icosahedral nucleocapsids.

RNA

Negative single-stranded RNA families: , Bunyaviridae, Filoviridae, Orthomyxoviridae, Paramyxoviridae and Rhabdoviridae. All are enveloped with helical nucleocapsids.

Arenaviridae

Double-stranded RNA genome: .

Reoviridae

The has not yet been assigned to a family, but is clearly distinct from the other families infecting humans.

Hepatitis D virus

Viruses known to infect humans that have not been associated with disease: the family and the genus Dependovirus. Both of these taxa are non-enveloped single-stranded DNA viruses.

Anelloviridae

List of latent human viral infections

Pathogenic bacteria