Serotypes and clinical manifestations of group B streptococcal infections in western Sweden

Berg, Stefan; Trollfors, Birger; Lagergård, Teresa; Zackrisson, Gunilla; Claesson, Bo A.

doi:10.1046/j.1469-0691.2000.00007.x

Cited by 33 publications

(43 citation statements)

References 26 publications

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“…It has been reported that the Ia, II, III, V and X antigens are commonly observed in GBS strains isolated from bovine milk (Finch & Martin, 1984 Duarte et al, 2004), whereas Ia, Ib, Ic, II, III, IV and V antigens are found in GBS from human vaginal specimens (Jelinkova, 1977;Schuctat & Wenger 1994;Berg et al, 2000;Spellerberg, 2000;Ko et al, 2001). In the present study, GBS serotype III and VII were found to be the most frequent serotypes in bovine isolates, but not in human isolates.…”

Section: Serotyping Resultscontrasting

confidence: 46%

“…In the present study, GBS serotype III and VII were found to be the most frequent serotypes in bovine isolates, but not in human isolates. The importance of the invasive GBS serotype III strains among human isolates is well known (Berg et al, 2000;Ko et al, 2001). GBS serotype III has been incriminated as the major colonizing strain in pregnant women (Finch & Martin, 1984;Berg et al, 2000;Moyo et al, 2002).…”

Section: Serotyping Resultsmentioning

confidence: 99%

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Characterization of bovine and human group B streptococci isolated in Turkey

Ekin

Gürtürk

2006

Journal of Medical Microbiology

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In the study, group B streptococci (GBS) isolated from bovines and humans in and around Van, eastern Turkey, were serotyped, and their haemagglutination and lectin-agglutination properties were also determined. This study is the first epidemiological survey of GBS serotypes performed in Turkey. A total of 148 GBS isolates, 76 from bovine milk and 72 from women attending a maternity polyclinic, were examined by co-agglutination, slide haemagglutination and slide lectin-agglutination tests. By the co-agglutination test, 34 (44?7 %) of bovine isolates and 49 (68 %) of human isolates could be serotyped. In bovine isolates, type VII (11?8 %), III (10?5 %), Ic (6?5 %) and VIII (3?9 %) were the most frequently detected serotypes. The most frequent human serotypes were Ic (33?3 %), IV (8?3 %), VIII (6?9 %), V (5?5 %) and R (5?5 %). In the haemagglutination test using rabbit erythrocytes, 23 (33?3 %) bovine and 15 (23?4 %) human isolates were found to be positive. The bovine GBS isolates showed a significant positive agglutination reaction with Dolichos biflorus lectin (30?4 %), whereas the human GBS isolates were found to be positive for Arachis hypogea (18?8 %) and Canavalia ensiformis (37?5 %) lectins. The treatment of GBS with trypsin was also found to be important for the demonstration of the haemagglutination and lectin-agglutination properties of GBS. The results of the study provide data on serotype distribution and the formulation of a possible GBS vaccine in Turkey, and the lectin-agglutination tests may also be useful for differentiating bovine and human GBS strains.

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Section: Serotyping Resultscontrasting

confidence: 46%

Section: Serotyping Resultsmentioning

confidence: 99%

Characterization of bovine and human group B streptococci isolated in Turkey

Ekin

Gürtürk

2006

Journal of Medical Microbiology

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“…Novos recursos moleculares para detecção do S. agalactiae diretamente em amostras de sangue estão sendo utilizados, alguns automatizados, que, além de mais sensíveis, rápidos e padronizados, poderão superar algumas destas limitações e serem úteis para fins clínicos e epidemiológicos 23,26 . Quanto à prevalência dos sorotipos Ia, III e V em nosso estudo, condizem com os achados em outros países em amostras reto-vaginais 2,4,7,[27][28][29][30][31][32][33][34][35][36] , sendo exceção o Japão, onde predominam o VI e VIII 37 . Estes sorotipos, por nós encontrados, também estão relacionados à maior virulência e, portanto, associados à maioria das infecções neonatais, maternas e em outras populações [1][2][3][4]9 .…”

Section: Discussionunclassified

Taxa de infecção e sorotipos de Streptococcus agalactiae em amostras de recém-nascidos infectados na cidade de Campinas (SP), Brasil

Fiolo¹,

Zanardi²,

Salvadego³

et al. 2012

Rev. Bras. Ginecol. Obstet.

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“…is one of the most common pathogens causing meningitis, bacteremia, and pneumonia, with high mortality rates in neonates, [1][2][3] non-pregnant women, the elderly, and immuno-compromised patients. [4,5] To treat GBS infection, penicillin, ampicillin, and cefazolin are the drugs of choice; for patients allergic to penicillin or cephalosporins, vancomycin, macrolides (such as erythromycin, azithromycin, and clarithromycin), and lincosamides (clindamycin) may be used as the alternative drugs.…”

Section: S Treptococcus Agalactiae (Group B Streptococcus Gbs)mentioning

confidence: 99%

Serotype distribution and resistance genes associated with macrolide and fluoroquinolone resistance in Streptococcus agalactiae isolates from a hospital in southern Taiwan

Wang¹,

Chen²,

Hou³

et al. 2015

Biomed J

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Background: Antimicrobial resistance of Streptococcus agalactiae (Group B Streptococcus, GBS) has been emerging worldwide. We aimed to examine the correlation of drug-resistant genes with serotypes and with the mutations of the quinolone resistance-determining region (QRDR) in GBS isolates. Methods:A total of 323 human GBS isolates were collected from a hospital in southern Taiwan. Laboratory investigation included serotyping by a multiplex polymerase chain reaction (PCR) method, antimicrobial susceptibility testing by a disc diffusion method, and mechanism analysis of the resistance to macrolides and fluoroquinolones by PCR and sequencing methods. Results:Multiplex PCR showed that the most prevalent serotypes were Ib, III, V, and VI, mostly isolated from urine. The ermB gene was highly prevalent in serotypes Ib and V and was associated with clindamycin and macrolide resistance. GBS with a serine-to-leucine mutation at codon 81 in GyrA and with a serine-to-phenylalanine or -tyrosine mutation at codon 79 in ParC had a higher minimum inhibitory concentration of levofloxacin than isolates with only an aspartic acid-to-tyrosine mutation at codon 83 (>32 μg/ml vs. 16 μg/ml) in GyrA. Conclusions:The most prevalent GBS serotypes were Ib, III, V, and VI. The ermB and mefE genes carried in serotypes Ib and V were highly associated with the resistance to macrolides and clindamycin. Mutations at codon 79 and codon 83 of ParC were the major determining factors for high-level fluoroquinolone resistance. (Biomed J 2015;38:215-220)

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Serotypes and clinical manifestations of group B streptococcal infections in western Sweden

Abstract: Serotype III was the single most frequent GBS isolate from infants and adults. Serotype V, which appeared first in 1992, was the third most frequent isolate. A vaccine containing five GBS capsular polysaccharides appears to be appropriate for the Swedish population.

Cited by 33 publications

References 26 publications

Characterization of bovine and human group B streptococci isolated in Turkey

Characterization of bovine and human group B streptococci isolated in Turkey

Taxa de infecção e sorotipos de Streptococcus agalactiae em amostras de recém-nascidos infectados na cidade de Campinas (SP), Brasil

Serotype distribution and resistance genes associated with macrolide and fluoroquinolone resistance in Streptococcus agalactiae isolates from a hospital in southern Taiwan

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