Evaluation of two culture methods for isolation of group b streptococcus from pregnant women

Abstract EN

This study aimed to compare tlie recovery of group B streptococcus (GBS) from low vaginal / anorectal swabs (LV/ARs) using selective enriched broth culturing method with the routine culturing of high vaginal swabs (H\'S).

120 pregnant women were studied at 35-40 weeks ofgesta-/اااء'ا.

Midstream urine (MSU) was examined from each woman for the presence of GBS /آاا،/'ا'،/'،ا،ا«.

Twenty seven (23%) w omen were found to be colonized by GBS using the enriched LV/ARs culturing method compared to eight (7%) using HVS routine unenriched metl/od (P=< 0.005).

Nineteen (70%) of GBS positive women were missed by the routine method.

Three (2.5%) had GBS bacteriuria.

Our results confirmed that detecting GBS is improved by culturing LV/ARs of 35-40 weeks pregnant women using selective ،'/ا/'،ا'اا،'،/ broth medium.

MSU should be exam-ined for GBS bacteriuria «long with LV/ARs.

This 'is the first study /// its kind to be carried out in the Kingdom ٠/ Saudi Arabia.