Serotypes of Ureaplasma urealyticum in spontaneous abortion.

Ureaplasma urealyticum was isolated from the tissues of 63 of 264 (24%) spontaneous abortions obtained by unaided vaginal delivery or by suction/sharp curettage and from 22 of 259 (8%) therapeutic abortions obtained by suction curettage. The isolates were serotyped by a modified indirect colony epifluorescence test. No differences in the incidence of specificities in the test and control groups were apparent, although statistical analysis of the data remains to be performed. Nor, based upon preliminary observation of the data, were there general differences in the serovars of these isolates and those obtained from either nongonococcal urethritis or asymptomatic controls.