[Group B streptococcus maternal and neonatal colonization in preterm rupture of membranes and preterm labor].

Purpose: To identify the prevalence and risk factors of maternal colonization by group B streptococcus (GBS) in pregnant women with premature labor (PL) and/or premature membrane rupture (PMR).

Methods: Two anal and two vaginal swabs were collected from 203 pregnant women with diagnosis of PL or PMR assisted at the practice along one year. Pregnant women with imminent labor at admission were excluded.

Selective versus non-selective culture medium for group B streptococcus detection in pregnancies complicated by preterm labor or preterm-premature rupture of membranes.

The objective of this study was to identify group B streptococcus (GBS) colonization rates and compare detection efficiency of selective versus non-selective culture media and anorectal versus vaginal cultures in women with preterm labor and preterm-premature rupture of membranes (PROM). A prospective cohort study of 203 women was performed. Two vaginal and two anorectal samples from each woman were collected using sterile swabs.