Definition: A family of small viruses containing single-stranded DNA. Virions are 18–26 nm in diameter, are not enveloped, and are ether resistant. Capsids are of cubic symmetry, with 32 capsomeres. Replication and assembly occur in the nucleus of infected cells. Three genera in the subfamily Parvovirinae are recognized: Parvovirus, Erythrovirus, and Dependovirus, which includes the adeno-associated virus. A second subfamily, Densovirinae, has three additional genera, all of which infect arthropods.
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