scholarly journals PROFILE OF PREGNANT WOMEN COLONIZED BY GROUP B Streptococcus SERVED BY THE UNIQUE HEALTH SYSTEM IN A LABORATORY OF MEDIANEIRA / PARANÁ

Author(s):  

Objective: The objective of this study was to determine the prevalence of pregnant colonization by group B Streptococcus (GBS) and to verify whether socioeconomic and demographic conditions are risk factors for colonization by this bacterium. Method: This cross-sectional study included the collection of sociodemographic data through a questionnaire and authorization to access the result of the cultivation of vaginal swabs for the investigation of GBS of 50 women treated at the Unified Health System (SUS) in a laboratory in the municipality of Medianeira, PR, between august and september 2020. Results: The population studied showed a 14% prevalence of colonization by GBS, within national and world standards. Among the factors analyzed, the only significant and protective association was living with fewer people in the same house, up to two people, reducing the risk of developing a positive culture for GBS by more than 5 times (5.54) when compared to pregnant women who live with more than 3 people in the same residence (p <0.1; RR = 0.181, CI 90% 0.04-0.82). There was no association between colonization by GBS with age, skin color, school education, occupation and type of housing, income, fixed partner, parity and gestational symptoms. Conclusion: This study requires greater sampling for statistical strengthening, however it indicates basic data for the creation of GBS disease prevention protocols based on the applied community.

2020 ◽  
Author(s):  
Leila Goudarzi ◽  
Mohammad Bagher Khalili ◽  
Mahmood Vakili ◽  
Maryam Sadeh

Consequence of Streptococcus agalactiae, Group B Streptococcus (GBS) relating infant’s diseases are well documented. Although many women carry this bacterium in their vagina, they may transfer to their infant during delivery and may result in different neonatal invasive diseases. The aim of this study was to determine the prevalence of GBS and serotyping the isolated species among un-selective non-pregnant women who attended two gynecology clinics in Tehran. In this cross-sectional study, a total of 560 vaginal samples collected from non-pregnant women. Following inoculation of the specimen on Blood Agar, the standard technology was applied for the final identification of GBS. Detected GBS species were further confirmed using specific PCR directed on dlts gene. Capsular serotyping was done by using the multiplex PCR method. The chi-square method was used for statistical analysis. Fifty (8.9%) out of 560 non-pregnant women were carriers of GBS. The most common types were III (36%), followed by type II (32%), Ia (26%), and Ib (6%), respectively. Results represent that the prevalence rate of GBS in non-pregnant women was reliable and similar to what obtained from pregnant women. In addition, the serotype III was found the most dominant types, as well as other investigations in the Tehran area. Therefore, vaccine designation based on type III is recommended.


BMJ Open ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. e032487
Author(s):  
Amer Alshengeti ◽  
Amjad Alharbi ◽  
Shahad Alraddadi ◽  
Abdulsalam Alawfi ◽  
Bushra Aljohani

AimsGroup B streptococcus (GBS) is one of the most frequent bacterial pathogens causing invasive infections in neonates. It can be transmitted from colonised mother to neonates around delivery. Screening strategies for GBS during pregnancy include either universal culture-based or risk-based screening. The present study aimed to assess the knowledge, attitude and current practices of pregnant women towards GBS screening in Al-Madinah City, Saudi Arabia.MethodsA hospital-based cross-sectional study was conducted at Madinah Maternity and Children Hospital, Al-Madinah, Saudi Arabia, from May to July 2018. Participants were recruited from postnatal wards. Participants were interviewed using a previously published validated survey that was divided into the following domains: demographic data, knowledge, experience and attitude towards different GBS screening strategies.ResultsA total of 377 out of 450 women (response rate 83.7%) were enrolled. The results showed that the overall mean knowledge score of the pregnant women towards GBS screening was 59.8%. Majority of the women (66.8%) were not aware of the GBS bacterium, while 86.5% of them had never been informed of GBS risk assessment during their pregnancies. The mean knowledge score among women who were aware of GBS (62.8%) was significantly higher than that among women who were not (58.4%) (p=0.015). However, majority of the pregnant women (61.8%) showed preference for universal culture-based GBS screening strategy over risk-based strategy.ConclusionThe study results have concluded that the level of awareness and knowledge about GBS among pregnant women were relatively poor; however, majority of the pregnant women prefer universal culture-based screening.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Abdul Namugongo ◽  
Joel Bazira ◽  
Yarine Fajardot ◽  
Ngonzi Joseph

Objectives.This study sought to determine the prevalence and factors associated with group B streptococcal anogenital colonization among pregnant women attending antenatal care at Mbarara Regional Referral Hospital, a tertiary hospital.Methods.Cross-sectional study where 309 pregnant women ≥ thirty-five weeks of gestation attending antenatal clinic were consecutively recruited between January and March 2015. Anovaginal swabs were collected and tested qualitatively using rapid visual immunoassay GBS test kits for presence of GBS antigens. Data was analyzed using STATA version 12. In univariate analysis, GBS colonized mothers were presented as percentages and numbers, and in multivariate analysis logistic regression analysis was applied to determine the associations of exposure variable and GBS colonization; a value of less than 0.05 was considered significant.Results.Mothers’ median age was 25 years, 14.6% mothers being obese. GBS prevalence was 28.8%, 95% CI: 23.7–33.9. Obesity was the only significant factor associated with anogenital GBS colonization with odds ratio of 3.78, 95% CI: 1.78–8.35, apvalue of 0.001. Maternal ages, educational level, residence, and gravidity were not associated with GBS anogenital colonization.Conclusion.Group B streptococcal anogenital colonization among pregnant women attending antenatal care at tertiary hospital, in Southwestern Uganda, is high.


Author(s):  
Adebayo A. Akadri ◽  
Bamidele D. Osuolale ◽  
Tessie O. Shorunmu ◽  
Oluwaseyi I. Odelola

Aims: To establish the prevalence, determinants and the antibiotic susceptibility pattern of Group B streptococcus in pregnant women in Sagamu, Ogun State, Nigeria. Study Design: Prospective cross-sectional study Place and Duration of Study: The study was carried out at the antenatal clinic at Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State, Nigeria, between July 2017 and December 2017. Methodology: The study involved 184 pregnant women attending antenatal clinic. Lower vaginal and rectal swabs were collected under aseptic condition and immediately sent to the laboratory for processing. The samples were assayed for the presence of group B streptococcus using conventional methods. Information on the socio demographic characteristics and details of delivery were recorded on a data capture sheet. Results: The prevalence of Group B streptococcus was 27.7%. The odds of Group B streptococcus colonization was significantly higher among women of low parity (≤ 2) and binary logistic regression analysis showed that parity was predictive of Group B streptococcus colonization (OR 3.7; 95% CI = 1.03-13.46; P=.045). Younger women (age ≤ 30 years) and women carrying term pregnancies had a non significant trend towards higher odds of Group B streptococcus colonization [(OR= 1.22, 95% CI: 0.6-2.3, P = .54) and (OR=1.6, CI: 0.8-3.2; P = .15) respectively]. The resistance of group B streptococcus isolates to penicillin and ampicillin was 39.2% and 37.3% respectively.                           Conclusion: The group B streptococcus colonization rate in this study is high. Factors such as low parity, young maternal age and term pregnancies are associated with increased odds of colonization. The emergence of resistance to the commonly prescribed antibiotics calls for re-evaluation of the current recommendations regarding the antibiotics prophylaxis.


Author(s):  
Leonard Sama ◽  
michel Noubom ◽  
Christelle KENNE ◽  
Thibau Tchouangueu ◽  
omer Ngouateu ◽  
...  

Background: Group B streptococcus (GBS), also name as Streptococcus agalactiae, is a gram-positive bacterium know for it capacity to colonises the vaginal and rectal areas of the mother and is a leading cause of neonatal mortality and morbidity. This study aimed at determining the prevalence, associated risk factors and antimicrobial susceptibility of GBS colonization among pregnant women attending antenatal care at Dschang District Hospital. Methods: This hospital-base cross-sectional study targeted pregnant women population attending hospitals for routine prenatal testing using a multistage sampling method. Pregnant women at 23.46 ± 6.44 weeks gestation completed a questionnaire and vaginal swabs were obtained for GBS analysis. Data were analysed using chi-squared (χ2) test or the Fisher’s exact test when appropriate and the multivariable logistic regression models. Results: The colonisation rate of GBS among pregnant women was 8.69%. Induce abortion (odds ratio [CI] = 3.09, 95% [1.56-6.21]), Spontaneaous abortions (OR= 2.82, 95% CI 1.14-7.29), Stillborn (OR [CI] = 7.75, 95% [2.61-21.71]), Fever (OR [CI] = 0.37, 95% [0.19-0.71]) and anemia (OR [CI] = 0.22, 95% [0.12-0.43]) were found to be influencing factors associated with GBS colonisation. Conclusion: Our findings suggest that none of the studied factors were significantly associated with GBS colonisation. Further longitudinal research is needed to establish the causal relationship and its biological mechanisms. Keys words: Group B Streptococcus, Prevalence, Risk Factors, Antimicrobial Susceptibility, Pregnant Women


2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Anne-Marie Rick ◽  
Angie Aguilar ◽  
Rosita Cortes ◽  
Remei Gordillo ◽  
Mario Melgar ◽  
...  

Abstract Background Infection causes 1 of every 5 neonatal deaths globally. Group B Streptococcus (GBS) is the most significant pathogen, although little is known about its epidemiology and risk in low-income countries. Methods A cross-sectional study in 2015 at a public hospital in Guatemala City enrolled women ≥35 weeks’ gestation. Vaginal and rectal swabs were processed using Lim broth and GBS CHROMagar then agglutination testing. Risk factors were assessed using multivariate analysis. Vaginal microbiota were profiled by 16S ribosomal ribonucleic acid sequencing in a subset of 94 women. Results Of 896 pregnant women, 155 (17.3%; 95% confidence interval [CI], 14.9–19.9) were GBS colonized. Colonization was associated with history of previous infant with poor outcome (odds ratio [OR], 1.94; 95% CI, 1.15–3.27) and increasing maternal age (OR, 1.05; 95% CI, 1.02–1.09). Multiparity was protective (OR, .39; 95% CI, .21–.72). Four (6%) GBS-exposed infants had early-onset neonatal sepsis. Vaginal microbiome composition was associated with previous antibiotic exposure (P = .003) and previous low birth weight infant (P = .03), but not GBS colonization (P = .72). Several individual taxa differed in abundance between colonized and noncolonized women. Conclusions Group B Streptococcus is prevalent in pregnant women from Guatemala with different risk factors than previously described. Although the vaginal microbiome was not altered significantly in GBS-colonized women, use of antibiotics had an effect on its composition.


Author(s):  
Soodabeh Rostami ◽  
Leila Moeineddini ◽  
Fereshteh Ghandehari ◽  
Marzieh Rahim Khorasani ◽  
Parisa Shoaei ◽  
...  

Background and Objectives: Group B streptococcus (GBS) can cause severe and invasive infections in pregnant women, infants, and adults. This study aimed to investigate the risk factors of GBS colonization in pregnant women and determine the macrolide resistance and capsular type of isolates. Materials and Methods: In a cross-sectional study, a total of 200 pregnant women were screened for GBS colonization by phenotypic methods. Antibiotic susceptibility pattern of colonizing isolates and ermB, ermTR, mefA/E genes were detected. Also, molecular capsular types of isolates were distinguished. Results: The overall prevalence of colonization of participates with GBS was 13.5%. Statistical analysis showed that there was no association between risk factors and colonization with GBS. The highest resistance was observed to erythromycin (44.4%) followed by clindamycin (29.6%), penicillin, ampicillin, and ceftriaxone (18.5%), levofloxacin (11.1%), and 29.6% isolates were multidrug-resistant. ermTR and mefA/E genes were detected in 37% and 11.1% isolates; respectively and the ermB gene was not detected. The most common capsular type was type Ib (44.4%) followed by type III (40.7%), type II (11.1), and type Ia (3.7%). Conclusion: In the present study, the prevalence of GBS was in the medium range. Resistance to key antibiotic agents was relatively high. Also, capsular serotype Ib was the predominant serotype, which emphasizes the importance of monitoring the molecular typing of the GBS isolates regularly.


2020 ◽  
Vol 20 (4) ◽  
pp. 1165-1172
Author(s):  
Taís Viana Lédo de Oliveira ◽  
Fabrícia Almeida Fernandes Santana ◽  
Claudio Lima Souza ◽  
Márcio Vasconcelos Oliveira

Abstract Objectives: to estimate the prevalence and the factors associated with the colonization by group B streptococcus (GBS) in pregnant women from the urban area attended at health units in a municipality in northeastern Brazil. Methods: it is a cross-sectional study conducted from January 2017 to March 2018. Vagino-rectal swabs were collected from 210 pregnant women between 32 and 40 weeks of gestation. The swabs were seeded on 5% sheep blood agar and on chromogenic agar. For confirmatory identification of GBS, the CAMP test and latex agglutination were used. Descriptive analysis and univariate and multivariate association analysis were performed using a multinomial logistic model. Results: the prevalence of GBS colonization among pregnant women was 18.1% (n = 38), and a statistically significant association (p<0.05) was found for income and parity variables in the group of older women in the univariate analysis, and for skin color, age and parity in the final multivariate analysis. Conclusions: the prevalence of maternal colonization by GBS was similar to that described in other studies. Although some risk factors, such as skin color, age and parity, were associated with colonization, other studies are essential to establish more information on pregnant women more likely to be colonized by GBS.


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