Background: Ureaplasma urealyticum is a member of genus Ureaplasma,family Mycoplasmataceae, order Mycoplasmatales, class Mollicutes.

• 背景:溶脲脲原体(Ureaplasma urealyticum)在微生物分类学上归属柔膜纲、支原体目、支原体科、脲原体属。