Recto-Vaginal Colonization of Group B Streptococcus in Pregnant Women Referred to a Hospital in Iran and its Effect on Lactobacillus Normal Flora

2010 ◽  
Vol 10 (2) ◽  
pp. 166-169 ◽  
Author(s):  
Mahboobeh Nakhaei Mo
Keyword(s):  
Pregnant Women ◽  
Group B Streptococcus ◽  
Normal Flora ◽  
Vaginal Colonization ◽  
Group B

scholarly journals Group B Streptococcus Recto-Vaginal Colonization in Near-Term Pregnant Women, Southwest Ethiopia

2020 ◽  
Vol 30 (5) ◽  
Author(s):  
Woubishet Girma ◽  
Nadia Yimer ◽  
Tesfaye Kassa ◽  
Elias Yesuf
Keyword(s):  
Pregnant Women ◽  
Antimicrobial Susceptibility ◽  
Susceptibility Testing ◽  
Group B Streptococcus ◽  
Susceptibility Pattern ◽  
Southwest Ethiopia ◽  
Vaginal Colonization ◽  
History Of ◽  
Near Term ◽  
Group B

BACKGROUND: Group B Streptococcus (GBS) is recognized as an important cause of maternal and neonatal morbidity and mortality. Maternal vaginal carriage of GBS (Streptococcus agalactiae) can lead to vertical transmission to the neonate at the time of delivery. However, little is known about its prevalence, predictors and antibiotic susceptibility pattern in Jimma, Ethiopia. This study assessed the prevalence, antimicrobial susceptibility pattern and determinants of GBS recto-vaginal colonization among near-term pregnant women.METHODS: A cross-sectional study was conducted from May to August 2015 at Jimma University Medical Centre in Southwest Ethiopia. Data through questionnaire and GBS isolates from vaginal and rectal swabs were collected. Antimicrobial susceptibility testing was performed.RESULTS: The overall prevalence of GBS colonization among near term pregnant women (35-37 weeks) was 16.3% (22/135). The majority of GBS isolates were sensitive to Ampicillin and Penicillin G with 95.5% and 90.1%, respectively. Erythromycin and clindamycin were resisted by 50% and 40.9% of the isolates, respectively, whereas gentamicin was resisted by all isolates. GBS colonization was significantly associated with a history of preterm delivery (PTD) (AOR: 6.3, 95% CI: 1.42, 28.3) and history of urinary tract infection (UTI) during current pregnancy (AOR: 6.4, 95% CI, 1.95, 21.1).CONCLUSION: Our study indicated that one among six near-term pregnant women had recto-vaginal GBS colonization. In places where universal screening is not feasible, selective screening for factors particularly history of PTD and UTI during current pregnancy may be a reasonable option. Antibiotic susceptibility testing should be performed while using Erythromycin, Clindamycin or Gentamicin. 

scholarly journals Comparison of Various Culture Methods for Isolation of Group B Streptococcus from Intrapartum Vaginal Colonization

2013 ◽  
Vol 5 (01) ◽  
pp. 42-45 ◽  
Author(s):  
Kavitha P Konikkara ◽  
Shrikala Baliga ◽  
Suchitra M Shenoy ◽  
B Bharati
Keyword(s):  
Pregnant Women ◽  
Group B Streptococcus ◽  
Culture Method ◽  
Sheep Blood Agar ◽  
Blood Agar ◽  
Third Trimester ◽  
Sheep Blood ◽  
Vaginal Colonization ◽  
Vaginal Swabs ◽  
Group B

ABSTRACT Aims: Group B Streptococcus (GBS) is one of the most common causes of neonatal sepsis throughout the world. Reports of vaginal colonization of GBS in India are few and variable. A study was conducted on pregnant women in a tertiary care hospital to compare various methods for isolation of GBS, to study the prevalence of GBS in pregnant women in third trimester, and to determine risk factors for GBS colonization. Settings and Design: Observational descriptive study. Materials and Methods: High vaginal swabs from 150 pregnant women in their third trimester were used to compare three methods for isolation of GBS viz. direct culture on 5% Sheep Blood agar, direct culture on selective Columbia Blood Agar and culture in LIM enrichment broth with subsequent culture on 5% Sheep Blood agar. A history of associated risk factors was also taken. Statistical Analysis Used: Statistical analysis was performed by Chi–square test. Results: Isolation was best from LIM enrichment broth with subsequent culture on 5% Sheep Blood Agar. Prevalence of GBS colonization by using culture method was 12.67%. Most frequently associated risk factor was intrapartum fever (42.11%). Conclusions: Standard Culture Method using LIM enrichment should be adopted as standard practice for isolation of GBS from vaginal swabs.

Rectal Colonization with Group B Streptococcus: Relation to Vaginal Colonization of Pregnant Women

1977 ◽  
Vol 135 (2) ◽  
pp. 308-312 ◽  
Author(s):  
M. S. Badri ◽  
S. Zawaneh ◽  
A. C. Cruz ◽  
G. Mantilla ◽  
H. Baer ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Group B Streptococcus ◽  
Vaginal Colonization ◽  
Group B ◽  
Rectal Colonization

scholarly journals Study of Vaginal Group-B Streptococcal Colonization in Pregnant Women Attending a Tertiary Care Centre of Agartala

2020 ◽  
Vol 7 (48) ◽  
pp. 2815-2819
Author(s):  
Argha Mallya Debbarman ◽  
Ashis Kumar Rakshit ◽  
Jahar Lal Baidya ◽  
Dhruba Prasad Paul
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Pregnant Women ◽  
Preterm Delivery ◽  
Tertiary Care ◽  
Group B Streptococcus ◽  
P Value ◽  
Vaginal Colonization ◽  
Group B ◽  
Pregnant Mothers

BACKGROUND Lancefield Group-B Streptococcus (GBS) emerged as a significant neonatal pathogen with mortality rates of 15 - 50 % in western countries during 1970s. In India, incidence of invasive neonatal GBS diseases is around 0.17 per 1000 live birth and probably is underestimated. Hence, the study was undertaken to evaluate the vaginal GBS colonization in pregnant women along with the neonatal outcome. METHODS The study was single centered, hospital based observational cross-sectional study done in the dept. of Obstetrics & Gynaecology at Agartala Government Medical College (AGMC), and GBP Hospital for one & half years (Jan’ 16 - June’ 17). 250 Pregnant mothers with 31 to 40 weeks of gestation with singleton pregnancy, delivering either by Caesarean section & Vaginal delivery, were included in this study. They were recruited from obstetrics OPD and casualty of AGMC & GBP Hospital. During 1 st pelvic examination, two low vaginal swabs were taken for Gram Staining, and for determination of ß-hemolytic colony in blood agar. After identification of GBS from genitalia, outcome of neonates in these positive cases were evaluated for up to 28 days after delivery. RESULTS GBS was found in 8.8 % of total women recruited and was more common in multi-gravida. GBS vaginal colonization was significantly associated with low birth weight, and preterm delivery (p value 0.01) which is significant. CONCLUSIONS Prevalence of vaginal GBS colonization is more in pregnant mothers, more in multigravidas & is associated with low-birth-weight neonates and preterm delivery. So, there is a need to formulate guidelines for incorporation of detection of vaginal colonization in multi gravidas to determine its prevalence. KEYWORDS Group-B Streptococcus (GBS), Multigravidas, Colonization, Neonates, Pregnant Women

scholarly journals Group B Streptococcus CAMP Factor Does Not Contribute to Interactions with the Vaginal Epithelium and Is Dispensable for Vaginal Colonization in Mice

2021 ◽  
Author(s):  
Mallory B. Ballard ◽  
Vicki Mercado-Evans ◽  
Madelynn G. Marunde ◽  
Hephzibah Nwanosike ◽  
Jacob Zulk ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Antibiotic Prophylaxis ◽  
Pregnant Women ◽  
Group B Streptococcus ◽  
Vaginal Epithelium ◽  
Content Type ◽  
Vaginal Colonization ◽  
Camp Factor ◽  
Intrapartum Antibiotic ◽  
Group B

Group B Streptococcus (GBS) remains a pervasive pathogen for pregnant women and their newborns. Maternal screening and intrapartum antibiotic prophylaxis to GBS-positive mothers have reduced, but not eliminated GBS neonatal disease, and have not impacted GBS-associated preterm birth or stillbirth.

scholarly journals Biomarkers for a histological chorioamnionitis diagnosis in pregnant women with or without group B streptococcus infection: a case-control study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jie Ren ◽  
Zhe Qiang ◽  
Yuan-yuan Li ◽  
Jun-na Zhang
Keyword(s):  
Cord Blood ◽  
Pregnant Women ◽  
Peripheral Blood ◽  
Group B Streptococcus ◽  
Diagnostic Value ◽  
Adverse Outcomes ◽  
Intercellular Adhesion Molecule ◽  
Tnf Α ◽  
Group B ◽  
The Impact

Abstract Background Chorioamnionitis may cause serious perinatal and neonatal adverse outcomes, and group B streptococcus (GBS) is one of the most common bacteria isolated from human chorioamnionitis. The present study analyzed the impact of GBS infection and histological chorioamnionitis (HCA) on pregnancy outcomes and the diagnostic value of various biomarkers. Methods Pregnant women were grouped according to GBS infection and HCA detection. Perinatal and neonatal adverse outcomes were recorded with a follow-up period of 6 weeks. The white blood cell count (WBC), neutrophil ratio, and C-reactive protein (CRP) level from peripheral blood and soluble intercellular adhesion molecule-1 (sICAM-1), interleukin 8 (IL-8), and tumor necrosis factor α (TNF-α) levels from cord blood were assessed. Results A total of 371 pregnant women were included. Pregnant women with GBS infection or HCA had a higher risk of pathological jaundice and premature rupture of membranes and higher levels of sICAM-1, IL-8, and TNF-α in umbilical cord blood. Univariate and multivariate regression analysis revealed that sICMA-1, IL-8, TNF-α, WBC, and CRP were significantly related to an increased HCA risk. For all included pregnant women, TNF-α had the largest receiver operating characteristic (ROC) area (area: 0.841; 95% CI: 0.778–0.904) of the biomarkers analyzed. TNF-α still had the largest area under the ROC curve (area: 0.898; 95% CI: 0.814–0.982) for non-GBS-infected pregnant women, who also exhibited a higher neutrophil ratio (area: 0.815; 95% CI: 0.645–0.985) and WBC (area: 0.849; 95% CI: 0.72–0.978), but all biomarkers had lower value in the diagnosis of HCA in GBS-infected pregnant women. Conclusion GBS infection and HCA correlated with several perinatal and neonatal adverse outcomes. TNF-α in cord blood and WBCs in peripheral blood had diagnostic value for HCA in non-GBS-infected pregnant women but not GBS-infected pregnant women.

scholarly journals Poor Adherence to the Screening-Based Strategy of Group B Streptococcus Despite Colonization of Pregnant Women in Greece

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 418
Author(s):  
Maria Maroudia Berikopoulou ◽  
Aikaterini Pana ◽  
Theodota Liakopoulou-Tsitsipi ◽  
Nikos F. Vlahos ◽  
Vasiliki Papaevangelou ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Pregnant Women ◽  
Late Onset ◽  
Group B Streptococcus ◽  
Culture Collection ◽  
Carrier Status ◽  
Cross Sectional ◽  
Screening Guidelines ◽  
Group B

Group B streptococcus (GBS) is a leading cause of serious neonatal infections. Maternal GBS colonization is associated with early- and late-onset neonatal disease (EOD/LOD). In Greece, a screening-based strategy is recommended, in which concurrent vaginal-rectal cultures should be obtained between 36 0/7 and 37 6/7 weeks’ gestation. We sought to examine the level of adherence to the GBS screening guidelines and estimate the prevalence of GBS colonization among pregnant women. Although in Greece the screening-based strategy is followed, we also examined known EOD risk factors and linked them to GBS colonization. A cross-sectional study of 604 women postpartum in three hospitals and maternity clinics was conducted. Following written informed consent, data were collected via a short self-completed questionnaire and review of patients’ records. In 34.6% of the enrolled pregnant women, no culture had been taken. Of the remaining, 12.8% had proper vaginal-rectal sample collections. The overall maternal colonization rate was 9.6%. At least one risk factor for EOD was identified in 12.6% of participants. The presence of risk factors was associated with positive cultures (p = 0.014). The rate of culture collection did not differ between women with or without an EOD risk factor. Adherence to a universal screening of pregnant women with vaginal-rectal cultures was poor. Despite probable underestimation of GBS carrier status, almost 1 in 10 participants were GBS positive during pregnancy. Screening of women with risk factors for EOD should, at least, be prioritized to achieve prevention and prompt intervention of EOD.

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