Parvoviridae

noun plural

Par·​vo·​vi·​ri·​dae ˌpär-vō-ˈvir-ə-ˌdē 

: a family of small single-stranded DNA viruses that have a virion 18 to 26 nanometers in diameter without an encompassing envelope and a capsid composed of 60 copies of a protein and that include the causative agents of panleukopenia, fifth disease, and parvovirus