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Infectious Diseases in Obstetrics and Gynecology
Volume 2018, Article ID 2321046, 7 pages
Research Article

Prevalence and Clinical Significance of Streptococcus dysgalactiae subspecies equisimilis (Groups C or G Streptococci) Colonization in Pregnant Women: A Retrospective Cohort Study

1Department of Obstetrics and Gynecology, Kanta-Häme Central Hospital, Hämeenlinna, Finland
2Department of Obstetrics and Gynecology, Tampere University Hospital, Tampere, Finland
3Department of Microbiology, Fimlab Laboratories Ltd., Tampere, Finland
4Department of Obstetrics and Gynecology, Central Finland Health Care District, Jyväskylä, Finland
5School of Medicine, University of Tampere, Finland

Correspondence should be addressed to M. Jaalama; if.phshk@amalaaj.nairam

Received 11 February 2018; Accepted 26 April 2018; Published 3 June 2018

Academic Editor: Louise Hafner

Copyright © 2018 M. Jaalama et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objectives. Little is known about the significance of Streptococcus G or C colonization in pregnant women. The objective of this study was to assess whether vaginal Streptococcus group G or C colonization detected in late pregnancy increases the infectious morbidity of the mother or newborn. Methods. A total of 15,114 rectovaginal cultures taken at 35–37 weeks of pregnancy were analyzed at Tampere University Hospital, Finland, between 2012 and 2014. From this laboratory data, all Streptococcus G or C-positive cultures were included to study maternal and neonatal infectious morbidity after delivery. This study population was compared to women with a positive Streptococcus B culture and to women with a negative culture. Results. The prevalence of Streptococcus G or C colonization was 2.9%. Significantly more postpartum endometritis was found in this study group. No association was found between colonization and neonatal bacteremia. Conclusions. Streptococcus G or C colonization is associated with postpartum endometritis. More research is needed to clarify if antibiotic prophylaxis is reasonable for this group during delivery.