Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China

Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from...
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Autor*in:	Hong Zhang [verfasserIn] Wen-Li Liu [verfasserIn] Jia-Lin Liu [verfasserIn] Ming-Cheng Li [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	group b streptococcus pregnant woman colonization resistance

Übergeordnetes Werk:	In: Clinical and Experimental Obstetrics & Gynecology - IMR Press, 2022, 48(2021), 2, Seite 253-256
Übergeordnetes Werk:	volume:48 ; year:2021 ; number:2 ; pages:253-256

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.31083/j.ceog.2021.02.2242

Katalog-ID:	DOAJ031085385

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520			\|a Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances.
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allfields	10.31083/j.ceog.2021.02.2242 doi (DE-627)DOAJ031085385 (DE-599)DOAJ34acf1180d0841bc943a97f20524172a DE-627 ger DE-627 rakwb eng RG1-991 Hong Zhang verfasserin aut Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances. group b streptococcus pregnant woman colonization resistance Gynecology and obstetrics Wen-Li Liu verfasserin aut Jia-Lin Liu verfasserin aut Ming-Cheng Li verfasserin aut In Clinical and Experimental Obstetrics & Gynecology IMR Press, 2022 48(2021), 2, Seite 253-256 (DE-627)731337824 (DE-600)2693497-8 27090094 nnns volume:48 year:2021 number:2 pages:253-256 https://doi.org/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/article/34acf1180d0841bc943a97f20524172a kostenfrei https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/toc/0390-6663 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2021 2 253-256
spelling	10.31083/j.ceog.2021.02.2242 doi (DE-627)DOAJ031085385 (DE-599)DOAJ34acf1180d0841bc943a97f20524172a DE-627 ger DE-627 rakwb eng RG1-991 Hong Zhang verfasserin aut Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances. group b streptococcus pregnant woman colonization resistance Gynecology and obstetrics Wen-Li Liu verfasserin aut Jia-Lin Liu verfasserin aut Ming-Cheng Li verfasserin aut In Clinical and Experimental Obstetrics & Gynecology IMR Press, 2022 48(2021), 2, Seite 253-256 (DE-627)731337824 (DE-600)2693497-8 27090094 nnns volume:48 year:2021 number:2 pages:253-256 https://doi.org/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/article/34acf1180d0841bc943a97f20524172a kostenfrei https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/toc/0390-6663 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2021 2 253-256
allfields_unstemmed	10.31083/j.ceog.2021.02.2242 doi (DE-627)DOAJ031085385 (DE-599)DOAJ34acf1180d0841bc943a97f20524172a DE-627 ger DE-627 rakwb eng RG1-991 Hong Zhang verfasserin aut Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances. group b streptococcus pregnant woman colonization resistance Gynecology and obstetrics Wen-Li Liu verfasserin aut Jia-Lin Liu verfasserin aut Ming-Cheng Li verfasserin aut In Clinical and Experimental Obstetrics & Gynecology IMR Press, 2022 48(2021), 2, Seite 253-256 (DE-627)731337824 (DE-600)2693497-8 27090094 nnns volume:48 year:2021 number:2 pages:253-256 https://doi.org/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/article/34acf1180d0841bc943a97f20524172a kostenfrei https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/toc/0390-6663 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2021 2 253-256
allfieldsGer	10.31083/j.ceog.2021.02.2242 doi (DE-627)DOAJ031085385 (DE-599)DOAJ34acf1180d0841bc943a97f20524172a DE-627 ger DE-627 rakwb eng RG1-991 Hong Zhang verfasserin aut Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances. group b streptococcus pregnant woman colonization resistance Gynecology and obstetrics Wen-Li Liu verfasserin aut Jia-Lin Liu verfasserin aut Ming-Cheng Li verfasserin aut In Clinical and Experimental Obstetrics & Gynecology IMR Press, 2022 48(2021), 2, Seite 253-256 (DE-627)731337824 (DE-600)2693497-8 27090094 nnns volume:48 year:2021 number:2 pages:253-256 https://doi.org/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/article/34acf1180d0841bc943a97f20524172a kostenfrei https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/toc/0390-6663 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2021 2 253-256
allfieldsSound	10.31083/j.ceog.2021.02.2242 doi (DE-627)DOAJ031085385 (DE-599)DOAJ34acf1180d0841bc943a97f20524172a DE-627 ger DE-627 rakwb eng RG1-991 Hong Zhang verfasserin aut Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances. group b streptococcus pregnant woman colonization resistance Gynecology and obstetrics Wen-Li Liu verfasserin aut Jia-Lin Liu verfasserin aut Ming-Cheng Li verfasserin aut In Clinical and Experimental Obstetrics & Gynecology IMR Press, 2022 48(2021), 2, Seite 253-256 (DE-627)731337824 (DE-600)2693497-8 27090094 nnns volume:48 year:2021 number:2 pages:253-256 https://doi.org/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/article/34acf1180d0841bc943a97f20524172a kostenfrei https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 kostenfrei https://doaj.org/toc/0390-6663 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2021 2 253-256
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Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. 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callnumber-first	R - Medicine
author	Hong Zhang
spellingShingle	Hong Zhang misc RG1-991 misc group b streptococcus misc pregnant woman misc colonization misc resistance misc Gynecology and obstetrics Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China
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topic_title	RG1-991 Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China group b streptococcus pregnant woman colonization resistance
topic	misc RG1-991 misc group b streptococcus misc pregnant woman misc colonization misc resistance misc Gynecology and obstetrics
topic_unstemmed	misc RG1-991 misc group b streptococcus misc pregnant woman misc colonization misc resistance misc Gynecology and obstetrics
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title	Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China
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title_full	Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China
author_sort	Hong Zhang
journal	Clinical and Experimental Obstetrics & Gynecology
journalStr	Clinical and Experimental Obstetrics & Gynecology
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author_browse	Hong Zhang Wen-Li Liu Jia-Lin Liu Ming-Cheng Li
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author-letter	Hong Zhang
doi_str_mv	10.31083/j.ceog.2021.02.2242
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title_sort	identification and characteristics of antimicrobial-resistant group b streptococcus isolated from maternal birth canals at a university-affiliated hospital, china
callnumber	RG1-991
title_auth	Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China
abstract	Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances.
abstractGer	Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances.
abstract_unstemmed	Purpose of investigation: This study aimed to ascertain the colonization rate of Group B Streptococcus (GBS) in the birth canals of late-pregnant women, and to demonstrate the characteristics of the origins of antibiotic-resistance. Materials and Methods: A prospective survey of pregnant women from 2017 to 2019 at a university-affiliated hospital in China was conducted. A total of 275 pregnant women with a pregnancy between 35 and 37 weeks were included in the study. Vaginal secretions and rectal swabs were tested by GBS separation to identify cultures, and an agar doubling dilution method was performed to assess drug sensitivity. Results: In 275 pregnant women, 20 cases were GBS screen-positive for the vaginal swabs with a GBS colonization rate of 7.27%. In addition, 16 isolates from the rectal swabs were also GBS screen-positive. Of 20 isolates from the vaginal swabs, 90.0% were resistant to tetracycline, 70.0% were resistant to erythromycin, 40.0% were resistant to clindamycin, 40.0% were resistant to levofloxacin and 30.0% resistant to chloromycetin. All isolates were susceptible to penicillin G, vancomycin, and linezolid. Conclusions: The higher prevalence of GBS colonization among pregnant women indicated the critical need for screening GBS colonization in late-pregnant women in the region. The study revealed the resistant patterns of GBS colonization and inferred a possible mechanism of the GBS resistance to antimicrobial agents used as animal growth promotion substances.
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700
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title_short	Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China
url	https://doi.org/10.31083/j.ceog.2021.02.2242 https://doaj.org/article/34acf1180d0841bc943a97f20524172a https://www.imrpress.com/journal/CEOG/48/2/10.31083/j.ceog.2021.02.2242 https://doaj.org/toc/0390-6663
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author2	Wen-Li Liu Jia-Lin Liu Ming-Cheng Li
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up_date	2024-07-03T18:41:05.334Z
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Identification and characteristics of antimicrobial-resistant Group B Streptococcus isolated from maternal birth canals at a university-affiliated hospital, China

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