» Articles » PMID: 7811042

Antibiotic Resistance and Penicillin Tolerance in Clinical Isolates of Group B Streptococci

Overview
Specialty Pharmacology
Date 1994 Sep 1
PMID 7811042
Citations 21
Authors
Affiliations
Soon will be listed here.
Abstract

The aim of this study was to determine the susceptibility patterns of 100 group B streptococcal strains isolated in our hospital and to ascertain tolerance to penicillin by determining quantitative killing curves. We found two strains with intermediate susceptibility to penicillin and eight strains to ampicillin. Seventeen isolates were tolerant to penicillin, with bacterial counts decreasing 2 to 3 log during the first 8 h but still above 10(2) CFU/ml after 24 h. The kinetic study shows that penicillin tolerance is not rare among group B streptococci isolated in our hospital.

Citing Articles

Antibiotic tolerance among clinical isolates: mechanisms, detection, prevalence, and significance.

Deventer A, Stevens C, Stewart A, Hobbs J Clin Microbiol Rev. 2024; 37(4):e0010624.

PMID: 39364999 PMC: 11629620. DOI: 10.1128/cmr.00106-24.


Susceptible bacteria can survive antibiotic treatment in the mammalian gastrointestinal tract without evolving resistance.

Rodrigues M, Sabaeifard P, Yildiz M, Lyon A, Coughlin L, Ahmed S Cell Host Microbe. 2024; 32(3):396-410.e6.

PMID: 38359828 PMC: 10942764. DOI: 10.1016/j.chom.2024.01.012.


Host range, morphological and genomic characterisation of bacteriophages with activity against clinical Streptococcus agalactiae isolates.

Furfaro L, Payne M, Chang B PLoS One. 2020; 15(6):e0235002.

PMID: 32574197 PMC: 7310703. DOI: 10.1371/journal.pone.0235002.


Vagino-rectal colonization prevalence by Streptococcus agalactiae and its susceptibility profile in pregnant women attending a third-level hospital.

Campo C, Martinez M, Otero J, Rincon G Biomedica. 2019; 39(4):689-698.

PMID: 31860180 PMC: 7363344. DOI: 10.7705/biomedica.4514.


as an infection model for the multi-host pathogen reflects hypervirulence of strains associated with human invasive disease.

Six A, Krajangwong S, Crumlish M, Zadoks R, Walker D Virulence. 2019; 10(1):600-609.

PMID: 31230520 PMC: 6592362. DOI: 10.1080/21505594.2019.1631660.


References
1.
Taylor P, Schoenknecht F, SHERRIS J, Linner E . Determination of minimum bactericidal concentrations of oxacillin for Staphylococcus aureus: influence and significance of technical factors. Antimicrob Agents Chemother. 1983; 23(1):142-50. PMC: 184632. DOI: 10.1128/AAC.23.1.142. View

2.
Jacobs M, Kelly F, Speck W . Susceptibility of group B streptococci to 16 beta-lactam antibiotics, including new penicillin and cephalosporin derivatives. Antimicrob Agents Chemother. 1982; 22(5):897-900. PMC: 185679. DOI: 10.1128/AAC.22.5.897. View

3.
Borderon J, Borderon E, Geslin P, Sissia G, Valla M . [Antibiotic sensitivity of Streptococcus group B]. Pathol Biol (Paris). 1984; 32(1):35-9. View

4.
Broadbent A . Penicillin tolerance in group B streptococci. J Antimicrob Chemother. 1984; 13(4):396-7. DOI: 10.1093/jac/13.4.396. View

5.
Stampfl D, Verghese A, Parrino T . Group B streptococcal cellulitis in an adult. Postgrad Med. 1985; 77(5):253-4. DOI: 10.1080/00325481.1985.11698965. View