Human parvovirus B19 (PVB 19), the only parvovirus known tobe pathogenic in human , belongs to the genus Parvovirus in the familyParvoviridae. It is the smallest animal DNA virus.

• 人微小病毒B19（human parvovirus B19，PVB19）是微小病毒科微小病毒属中目前已知的唯一致人类疾病的病毒，也是动物病毒中体积最小结构最简单的DNA病毒。