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Group B streptococcus

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https://www.readbyqxmd.com/read/28515218/group-b-streptococcus-among-pregnant-women-and-newborns-in-mirzapur-bangladesh-colonization-vertical-transmission-and-serotype-distribution
#1
Samir K Saha, Zabed B Ahmed, Joyanta K Modak, Hakka Naziat, Shampa Saha, Mohammad A Uddin, Maksuda Islam, Abdullah H Baqui, Gary L Darmstadt, Stephanie J Schrag
Group B Streptococcus (GBS) infection is a leading cause of death in newborns in developed countries. Data on burden of GBS in Asian countries is lacking. This study aimed to understand i) rate of maternal recto-vaginal GBS carriage, ii) vertical transmission of GBS as determined by culturing ear, umbilicus and nasal swabs, and iii) distribution of GBS serotypes. This prospective observational study was conducted from September 2012 to November 2013 at Kumudini Hospital, a secondary level hospital, at Mirzapur, Bangladesh...
May 17, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28513815/epidemiology-of-paediatric-meningitis-in-central-c%C3%A3-te-d-ivoire-after-the-implementation-of-haemophilus-influenzae-type-b-vaccination
#2
Fidèle S Touré, Samson Kouame, Honoré Tia, Pacôme Monemo, Amadou Cissé, Bamourou Diané, Sören L Becker, Chantal Akoua-Koffi
Infectious meningitis accounts for enormous morbidity worldwide, but there is a paucity of data on its regional epidemiology in resource-constrained settings of sub-Saharan Africa. Here, we present a study on the aetiology of paediatric meningitis in central Côte d'Ivoire. Between June 2012 and December 2013, all cerebrospinal fluid (CSF) samples drawn at the University Teaching Hospital Bouaké were examined for the presence of bacterial and fungal pathogens. A causative agent was detected in 31 out of 833 CSF specimens (3...
May 17, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28511604/duplicated-or-hybridized-peptide-functional-domains-promote-oral-homeostasis
#3
T Basiri, N D Johnson, E B Moffa, Y Mulyar, P L Serra Nunes, M A A M Machado, W L Siqueira
Proteins that have existed for millions of years frequently contain repeats of functional domains within their primary structure, thereby improving their functional capacity. In the evolutionary young statherin protein contained within the in vivo-acquired enamel pellicle (AEP), we identified a single functional domain (DR9) located within the protein N-terminal portion that exhibits a higher affinity for hydroxyapatite and more efficient protection against enamel demineralization compared to other native statherin peptides...
May 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28508419/case-control-study-shows-that-neonatal-pneumococcal-meningitis-cannot-be-distinguished-from-group-b-streptococcus-cases
#4
Alexandra Arfi, Robert Cohen, Emmanuelle Varon, Stéphane Béchet, Stéphane Bonacorsi, Corinne Levy
AIM: Streptococcus pneumoniae (S. pneumoniae) is sometimes implicated in neonatal bacterial meningitis. This study described the demographic, clinical and biological features of neonatal S. pneumoniae meningitis and compared pneumococcal and group B streptococcal (GBS) neonatal meningitis. METHODS: We conducted a case-control study that compared neonates, aged one to 28 days with S. pneumoniae meningitis or GBS meningitis. Each case with S. pneumoniae was randomly matched to four control patients with GBS by age group and study year...
May 16, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28504863/diagnostic-accuracy-of-polymerase-chain-reaction-for-intrapartum-detection-of-group-b-streptococcus-colonization
#5
Rikke Bek Helmig, Jan Berg Gertsen
Many pregnant women are treated with antibiotics during labor to prevent transmission of group B Streptococcus (GBS, Streptococcus agalactiae) to their baby during the passage of the birth canal, and thus reducing the risk of serious infection of the newborn. Methods for intrapartum testing for GBS has been introduced to select women for whom intrapartum antibiotic prophylaxis should be offered. For such an intrapartum test to be useful in clinical practice, it has to be specific as well as sensitive. The aim of the present study is to evaluate the accuracy of the polymerase chain reaction (PCR) assay compared to an optimized culture method for GBS MATERIAL AND METHODS: In the period from 12...
May 15, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28502330/three-decades-of-follow-up-of-adults-after-recovery-from-invasive-pneumococcal-pneumonia
#6
Oluwadamilare O Ajayi, Nancy B Norton, Todd W Gress, Ronald J Stanek, Maurice A Mufson
BACKGROUND: Streptococcus pneumoniae infection is the most common cause of community-acquired pneumonia in adults. Invasive pneumococcal disease (IPD) carries a high case fatality rate. We investigated the lifespan of adults who recovered from IPD during a 32-year follow-up. MATERIALS AND METHODS: We determined whether adults discharged after an episode of IPD from hospitals affiliated with the Marshall University Joan C. Edwards School of Medicine in Huntington, West Virginia from 1983-2003 were alive on June 30, 2014...
May 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28495367/in-vivo-effects-of-allium-cepa-l-on-the-selected-gut-microflora-and-intestinal-histomorphology-in-broiler
#7
Sajid Ur Rahman, Sarzamin Khan, Naila Chand, Umar Sadique, Rifat Ullah Khan
The experiment was conducted to evaluate the effect of onion (Allium cepa L.,) on the performance, gut microflora and intestinal histomorphology of broiler chicks. Three hundred and twenty day old broiler chicks (Ross) were randomly divided into four groups as A, B, C and D. Group A served as control without any supplementation, group B, C and D was supplemented with onion powder at the rate of 1.5, 2 and 2.5g/kg of feed respectively. Supplementation of onion significantly (P<0.05) increased weight gain and feed consumption...
May 8, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28492196/comparative-evaluation-of-effect-of-use-of-toothbrush-with-paste-and-munident-on-levels-of-streptococcus-mutans-and-gingival-health-in-children-an-in-vivo-study
#8
Rashmi N Shetty, Sowmya B Shetty, Sruthi Janardhanan, Shamila Shetty, Sharan Shetty, Kiran Raj
AIM: Dental caries is a multifactorial disease which has a deleterious effect on the oral cavity. Improper oral hygiene habits are a cause for the same. The aim of this study was to compare the antibacterial efficacy of Munident, an Ayurvedic (herbal) dentifrice with commercially available toothpaste. MATERIALS AND METHODS: A total of forty subjects between the age group 9 and 12 years, resident of Bala Yeshu Nilaya Bhavan, Mangalore, Karnataka, India, were chosen for our study...
April 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28487606/effect-of-lactobacillus-rhamnosus-hn001-and-bifidobacterium-longum-bb536-on-the-healthy-gut-microbiota-composition-at-phyla-and-species-level-a-preliminary-study
#9
Marco Toscano, Roberta De Grandi, Laura Stronati, Elena De Vecchi, Lorenzo Drago
AIM: To evaluate the ability of Lactobacillus rhamnosus HN001 and Bifidobacterium longum BB536 to colonize the intestinal environment of healthy subjects and modify the gut microbiota composition. METHODS: Twenty healthy Italian volunteers, eight males and twelve females, participated in the study. Ten subjects took a sachet containing 4 × 10(9) colony-forming units (CFU) of Bifidobacterium longum BB536 and 10(9) CFU of Lactobacillus rhamnosus HN001, 30 min before breakfast (pre-prandial administration), while ten subjects took a sachet of probiotic product 30 min after breakfast (post-prandial administration)...
April 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28487166/rapid-detection-of-group-b-streptococcus-directly-from-vaginal-rectal-specimens-using-liquid-swabs-and-the-bd-max-gbs-assay
#10
Justin A Ellem, Daniel Kovacevic, Tom Olma, Sharon C-A Chen
OBJECTIVE: We adapted the BD Max GBS assay, an automated platform for detection of Group B Streptococcus DNA in vaginal-rectal swab specimens after LIM broth enrichment, to directly detect GBS in specimens collected using cellular foam swabs in Amies liquid medium. We compared the BD Max GBS assay performance to that of enriched culture and the BD GeneOhm StrepB assay. METHODS: Seventy-two reference vaginal-rectal specimens were employed to determine the limit of GBS detection and the preferred test volume for direct detection of GBS...
May 6, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28486938/barriers-and-facilitators-related-to-the-uptake-of-four-strategies-to-prevent-neonatal-early-onset-group-b-haemolytic-streptococcus-disease-a-qualitative-study
#11
Diny G E Kolkman, Margot A H Fleuren, Maurice G A J Wouters, Christianne J M de Groot, Marlies E B Rijnders
BACKGROUND: Actions to prevent early onset disease in neonates are based on different strategies including administering antibiotic prophylaxis during labour in case of 1) maternal GBS colonisation (screening strategy), 2) identified risk factors (risk-based strategy) or 3) a combination of these two conditions (maternal GBS colonisation and identified risk factors: combination strategy and the Dutch guideline). Low adherence to guidelines preventing EOGBS has been reported. Each strategy has drawbacks and clinical outcomes are affected by care providers' and women's adherence...
May 9, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28485247/screening-can-reduce-gbs-risk
#12
(no author information available yet)
Screening pregnant women for bacterial infection Group B Streptococcus (GBS) can cut the risk to newborns dramatically, a study from London North West Healthcare NHS Trust suggests.
May 9, 2017: Nursing Children and Young People
https://www.readbyqxmd.com/read/28484584/etiology-and-laboratory-abnormalities-in-bacterial-meningitis-in-neonates-and-young-infants
#13
David Kotzbauer, Curtis Travers, Craig Shapiro, Margaux Charbonnet, Anthony Cooley, Deborah Andresen, Gary Frank
We conducted a retrospective review of electronic medical records of all cases of bacterial meningitis in neonates and young infants at our institution from 2004 to 2014. Fifty-six cases were identified. The most common causative organism was group B streptococcus, followed by Escherichia coli and then Listeria monocytogenes. Forty-four of the 56 patients in the study had abnormalities of the blood white blood cell (WBC) count. The most common WBC count abnormalities were leukopenia and elevation of the immature to total (I:T) neutrophil ratio...
April 6, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28480290/group-b-streptococci-colonization-in-pregnant-guatemalan-women-prevalence-risk-factors-and-vaginal-microbiome
#14
Anne-Marie Rick, Angie Aguilar, Rosita Cortes, Remei Gordillo, Mario Melgar, Gabriela Samayoa-Reyes, Daniel N Frank, Edwin J Asturias
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...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28475781/2015-epidemic-of-severe-streptococcus-agalactiae-sequence-type-283-infections-in-singapore-associated-with-the-consumption-of-raw-freshwater-fish-a-detailed-analysis-of-clinical-epidemiological-and-bacterial-sequencing-data
#15
Shirin Kalimuddin, Swaine L Chen, Cindy T K Lim, Tse Hsien Koh, Thean Yen Tan, Michelle Kam, Christopher W Wong, Kurosh S Mehershahi, Man Ling Chau, Lee Ching Ng, Wen Ying Tang, Hishamuddin Badaruddin, Jeanette Teo, Anucha Apisarnthanarak, Nuntra Suwantarat, Margaret Ip, Matthew T G Holden, Li Yang Hsu, Timothy Barkham
Background: Streptococcus agalactiae (group B Streptococcus [GBS]) has not been described as a foodborne pathogen. However, in 2015, a large outbreak of severe invasive sequence type (ST) 283 GBS infections in adults epidemiologically linked to the consumption of raw freshwater fish occurred in Singapore. We attempted to determine the scale of the outbreak, define the clinical spectrum of disease, and link the outbreak to contaminated fish. Methods: Time-series analysis was performed on microbiology laboratory data...
May 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28475731/evaluation-of-daptomycin-combinations-with-cephalosporins-or-gentamicin-against-streptococcus-mitis-group-strains-in-an-in-vitro-model-of-simulated-endocardial-vegetations-sevs
#16
Juwon Yim, Jordan R Smith, Nivedita B Singh, Seth Rice, Kyle Stamper, Cristina Garcia de la Maria, Arnold S Bayer, Nagendra N Mishra, José M Miró, Truc T Tran, Cesar A Arias, Paul Sullam, Michael J Rybak
Objectives: Among viridans group streptococcal infective endocarditis (IE), the Streptococcus mitis group is the most common aetiological organism. Treatment of IE caused by the S. mitis group is challenging due to the high frequency of β-lactam resistance, drug allergy and intolerability of mainstay antimicrobial agents such as vancomycin or gentamicin. Daptomycin has been suggested as an alternative therapeutic option in these scenarios based on its excellent susceptibility profile against S...
May 5, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28475395/patient-and-prescriber-factors-and-the-prolongation-of-antibiotics-after-birth-in-infants-less-than-29-weeks
#17
M R Al Turk, R J Baier
OBJECTIVE: To delineate whether patient related or prescriber related factors account for the prolongation of antibiotic therapy beyond 48 hours in premature infants whose initial blood cultures are negative. METHODS: Retrospective review of infants born <29 weeks born between January 2011 and December 2012. Infants who had positive blood cultures or who died in the first 48 hours were excluded from analysis. Antibiotic courses were categorized as prolonged if antibiotics were continued for greater than 48 hours and not prolonged if antibiotics were stopped by 48 hours...
May 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28470020/rapid-emergence-of-a-new-clone-impacts-the-population-at-risk-and-increases-the-incidence-of-type-emm89-group-a-streptococcus-invasive-disease
#18
Sarah Teatero, Brenda L Coleman, Stephen B Beres, Randall J Olsen, Christopher Kandel, Olivia Reynolds, Taryn B T Athey, James M Musser, Allison McGeer, Nahuel Fittipaldi
BACKGROUND: Invasive group A Streptococcus (iGAS) disease caused by type emm89 strains has been increasing worldwide, driven by the emergence of an epidemic clonal variant (clade 3 emm89). The clinical characteristics of patients with emm89 iGAS disease, and in particular with clade 3 emm89 iGAS disease, are poorly described. METHODS: We used population-based iGAS surveillance data collected in metropolitan Toronto, Ontario, Canada during the period 2000-2014. We sequenced the genomes of 105 emm89 isolates representing all emm89 iGAS disease cases in the area during the period and 138 temporally matched emm89 iGAS isolates collected elsewhere in Ontario...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28463942/diagnostic-practices-for-suspected-community-acquired-central-nervous-system-infection-in-the-post-conjugate-vaccine-era
#19
Natalie Banniettis, Saumya Joshi, Shubhi Kaushik, Stephan Kohlhoff, Margaret R Hammerschlag
OBJECTIVE: The aim of this study was to evaluate diagnostic practices for suspected community-acquired central nervous system (CNS) infection in an urban pediatric population. METHODS: This is an observational, retrospective single-center review of cerebrospinal fluid (CSF) studies in children, 1 month to 21 years old, evaluated for suspected CNS infection from 2004 to 2014. Cases of suspected nosocomial meningitis were excluded. The frequency of N-methyl-D-aspartate receptor antibody (NMDAR ab) encephalitis was analyzed from 2010 to 2014...
May 1, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28461867/comparison-of-the-effect-of-resin-infiltrant-fluoride-varnish-and-nano-hydroxy-apatite-paste-on-surface-hardness-and-streptococcus-mutans-adhesion-to-artificial-enamel-lesions
#20
Mahdiye Aziznezhad, Homayoon Alaghemand, Zahra Shahande, Nilgoon Pasdar, Ali Bijani, Abdolreza Eslami, Zohre Dastan
INTRODUCTION: Dental caries is a major public health problem, and Streptococcus mutans is considered the main causal agent of dental caries. This study aimed to compare the effect of three re-mineralizing materials: resin infiltrant, fluoride varnish, and nano-hydroxy apatite paste on the surface hardness and adhesion of Streptococcus mutans as noninvasive treatments for initial enamel lesions. METHODS: This experimental study was conducted from December 2015 through March 2016 in Babol, Iran...
March 2017: Electronic Physician
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