scholarly journals Characterization of Group B Streptococcus Isolated from Women in Saitama City, Japan

2012 ◽  
Vol 65 (6) ◽  
pp. 516-521 ◽  
Author(s):  
Hiroyuki Ueno ◽  
Yoshihiko Yamamoto ◽  
Akiko Yamamichi ◽  
Koji Kikuchi ◽  
Sumie Kobori ◽  
...  
Keyword(s):  
Group B Streptococcus ◽  
Group B

scholarly journals Immunochemical characterization of the "native" type III polysaccharide of group B Streptococcus.

1976 ◽  
Vol 143 (2) ◽  
pp. 258-270 ◽  
Author(s):  
C J Baker ◽  
D L Kasper ◽  
C E Davis
Keyword(s):  
Group B Streptococcus ◽  
Molecular Size ◽  
Antigenic Determinants ◽  
Capsular Type ◽  
Polysaccharide Antigen ◽  
Native Form ◽  
Intact Cells ◽  
Type Iii ◽  
Group B

The type III polysaccharide of -roup B Streptococcus has been isolated and purified by a method that employs washing of intact cells at neutral pH. That the polysaccharide prepared by this procedure is the "native" type III antigen is suggested by its molecular size in excess of 10(6) daltons, its degradation by acid and heat treatment to a fragment with immunologic characteristics of the classical HCl antigen, and its type-specific serologic activity. The type III polysaccharide in native form contains sialic acid, galactose, glucose, glucosamine, heptose, and mannose. It is acidic in nature, is resistant to neuramindiase degradation, contains no O-acetyl groups, and does not share antigenic determinants with capsular type K1 antigen of Escherichia coli or Group B polysaccharide antigen of Neiserria meningitidis.

Characterization of group B Streptococcus isolated from sterile and non-sterile specimens in China

2018 ◽  
Vol 92 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Shuping Nie ◽  
Xuedong Lu ◽  
Zhengjiang Jin ◽  
Juyi Gao ◽  
Dongli Ma ◽  
...  
Keyword(s):  
Group B Streptococcus ◽  
Group B

Characterization of the group-specific polysaccharide of group B Streptococcus

1984 ◽  
Vol 235 (2) ◽  
pp. 385-392 ◽  
Author(s):  
David G. Pritchard ◽  
Barry M. Gray ◽  
Hugh C. Dillon
Keyword(s):  
Group B Streptococcus ◽  
Specific Polysaccharide ◽  
Group B

scholarly journals Molecular and phenotypic characterization of invasive group B streptococcus strains from infants in Norway 2006–2007

2009 ◽  
Vol 15 (12) ◽  
pp. 1182-1185 ◽  
Author(s):  
H. Bergseng ◽  
J.E. Afset ◽  
A. Radtke ◽  
K. Loeseth ◽  
R.V. Lyng ◽  
...  
Keyword(s):  
Group B Streptococcus ◽  
Phenotypic Characterization ◽  
Invasive Group ◽  
Group B

scholarly journals Molecular Characterization of Nontypeable Group B Streptococcus

2006 ◽  
Vol 44 (7) ◽  
pp. 2398-2403 ◽  
Author(s):  
S. V. Ramaswamy ◽  
P. Ferrieri ◽  
A. E. Flores ◽  
L. C. Paoletti
Keyword(s):  
Molecular Characterization ◽  
Group B Streptococcus ◽  
Group B

scholarly journals Epidemiological Characterization of Group B Streptococcus Infections in Alberta, Canada: An Update from 2014 to 2020

2021 ◽  
Author(s):  
Angela Ma ◽  
L. Alexa Thompson ◽  
Thomas Corsiatto ◽  
Donna Hurteau ◽  
Gregory J. Tyrrell
Keyword(s):  
Early Onset ◽  
Late Onset ◽  
Group B Streptococcus ◽  
Content Type ◽  
Adult Disease ◽  
Invasive Infections ◽  
Group B ◽  
Epidemiological Characterization

This work describes the epidemiology of invasive infections caused by the bacterium group B Streptococcus (GBS) in Alberta, Canada. We show that rates of invasive GBS disease have increased from 2014 to 2020 for both adult disease and late-onset disease in neonates, whereas the rate of early onset disease in neonates has decreased. We also show that the rate of resistance to erythromycin (an antibiotic used to treat GBS) has also increased in this time.

scholarly journals Characterization of Clinical and Carrier Streptococcus agalactiae and Prophage Contribution to the Strain Variability

Viruses ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1323
Author(s):  
Aneta Lichvariková ◽  
Katarina Soltys ◽  
Tomas Szemes ◽  
Livia Slobodnikova ◽  
Gabriela Bukovska ◽  
...  
Keyword(s):  
Streptococcus Agalactiae ◽  
Bacterial Infections ◽  
Group B Streptococcus ◽  
Host Bacterium ◽  
Phage Integrase ◽  
Integration Sites ◽  
Group A ◽  
Pcr Method ◽  
Group B

Streptococcus agalactiae (group B Streptococcus, GBS) represents a leading cause of invasive bacterial infections in newborns and is also responsible for diseases in older and immunocompromised adults. Prophages represent an important factor contributing to the genome plasticity and evolution of new strains. In the present study, prophage content was analyzed in human GBS isolates. Thirty-seven prophages were identified in genomes of 20 representative sequenced strains. On the basis of the sequence comparison, we divided the prophages into eight groups named A–H. This division also corresponded to the clustering of phage integrase, even though several different integration sites were observed in some relative prophages. Next, PCR method was used for detection of the prophages in 123 GBS strains from adult hospitalized patients and from pregnancy screening. At least one prophage was present in 105 isolates (85%). The highest prevalence was observed for prophage group A (71%) and satellite prophage group B (62%). Other groups were detected infrequently (1–6%). Prophage distribution did not differ between clinical and screening strains, but it was unevenly distributed in MLST (multi locus sequence typing) sequence types. High content of full-length and satellite prophages detected in present study implies that prophages could be beneficial for the host bacterium and could contribute to evolution of more adapted strains.

Demonstration and Characterization of Buoyant-Density Subpopulations of Group B Streptococcus Type III

1990 ◽  
Vol 161 (4) ◽  
pp. 741-746 ◽  
Author(s):  
S. Hakansson ◽  
M. Granlund-Edstedt ◽  
M. Sellin ◽  
S. E. Holm
Keyword(s):  
Buoyant Density ◽  
Group B Streptococcus ◽  
Type Iii ◽  
Group B

scholarly journals Clinical Features of Group B Streptococcus Prosthetic Joint Infections and Molecular Characterization of Isolates

2010 ◽  
Vol 49 (1) ◽  
pp. 380-382 ◽  
Author(s):  
S. Corvec ◽  
M. Illiaquer ◽  
S. Touchais ◽  
D. Boutoille ◽  
N. van der Mee-Marquet ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Clinical Features ◽  
Group B Streptococcus ◽  
Joint Infections ◽  
Prosthetic Joint ◽  
Prosthetic Joint Infections ◽  
Group B
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