Before revision: Human parvovirus B19, generally referred to as B19 virus (B19V), parvovirus B19 or sometimes erythrovirus B19, is the first (and until 2005 the only) known human virus in the family Parvoviridae, genus Erythroparvovirus; it measures only 23–26 nm in diameter.
After revision: Human parvovirus B19, generally referred to as B19 virus (B19V), parvovirus B19 or sometimes erythrovirus B19, is a known human virus in the family Parvoviridae, genus Erythroparvovirus; it measures only 23–26 nm in diameter.