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Clinical Utility of Pourmedia ViGBS Agar Medium for Group B Streptococcus Screening
Mitsunori Kaneda1, Kumiko Takesue2, Keisuke Mori2
1Department of Clinical Laboratory, Medical Diagnostic Center of URAWA Medical Association: 6-4-18 Tokiwa, Urawa-ku, Saitama 338-0011, Japan. Department of Natural Sciences, Graduate School of Integrative Science and Engineering, Tokyo City University: 1-28-1 Tamatsutsumi, Setagaya-ku, Tokyo 158-8557, Japan.
Insights
Group B Streptococcus (GBS) screening in pregnant women is vital for preventing neonatal infections. Pourmedia ViGBS agar medium demonstrates clinical utility for GBS detection in vaginal and urine samples.
Area of Science:
- Clinical Microbiology
- Infectious Diseases
- Obstetrics and Gynecology
Background:
- Group B Streptococcus (GBS) is a primary cause of neonatal sepsis and meningitis.
- Preventing GBS infections in newborns is a critical public health objective.
- GBS carriage testing in pregnant individuals is essential for infection prevention strategies.
Purpose of the Study:
- To evaluate the clinical utility of Pourmedia ViGBS agar medium for GBS screening.
- To compare the performance of Pourmedia ViGBS agar medium against a standard method.
Main Methods:
- A total of 197 vaginal and urine samples were analyzed.
- Samples were cultured using Pourmedia ViGBS agar medium.
- Results were compared with those obtained from Nissui separated plate sheep blood agar/Drigalski agar medium.
Main Results:
- Pourmedia ViGBS agar medium identified GBS in 16.2% (32/197) of samples.
- The standard method identified GBS in 14.7% (29/197) of samples.
- The results suggest Pourmedia ViGBS agar medium is effective for GBS screening.
Conclusions:
- Pourmedia ViGBS agar medium is a useful selective agar for GBS screening.
- This medium aids in the early detection of GBS carriage in pregnant women.
- Effective GBS screening contributes to reducing neonatal GBS infections.
Abstract:
Group B Streptococcus (hereinafter GBS) is the main pathogen in neonatal sepsis and meningitis, accounting for approximately one quarter of the cases. 1) Prevention of infection is therefore crucial. The GBS carriage testing of pregnant women is necessary to prevent infections. In this study, we examined the clinical utility of Pourmedia ViGBS agar medium (Eiken Chemical Co., Ltd.) in GBS screening, using a total of 197 vaginal and urine samples. Of these samples, 32 (16.2%) tested GBS positive with Pourmedia ViGBS agar medium, and 29 (14.7%) tested GBS positive with Nissui separated plate sheep blood agar/Drigalski agar medium (Nissui Pharmaceutical Co., Ltd.). These results indicate the usefulness of Pourmedia ViGBS agar medium as a GBS screening selective agar medium.
