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Parvoviridae

The Parvoviridae are a family of small, rugged, genetically-compact DNA viruses, known collectively as parvoviruses. There are currently 56 species in the family, divided among 26 genera and two subfamilies. Members of this family infect a wide array of hosts and have been divided into two subfamilies, which infect either vertebrates (the Parvovirinae) or invertebrates ( Densovirinae).

Parvovirus B19 was the first pathogenic human parvovirus to be discovered and is best known for causing a childhood exanthem called " fifth disease" (erythema infectiosum), although it is also associated with other diseases including arthritis.