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Updated: Jan 5, 2026
A Murine Model of Group B Streptococcus Vaginal Colonization
Published on: November 16, 2016
Group B streptococcal transmission via a prolonged colonizer in a neonatal intensive care unit
Yoon-Joo Kim1, Young Mi Yoon2, Young Ree Kim3
1Department of Pediatrics, Jeju National University School of Medicine, Jeju, Republic of Korea.
Insights
An outbreak of five invasive Group B streptococcal (GBS) infections occurred in a NICU, possibly linked to a colonized infant and environmental contamination. Infection control measures successfully stopped further GBS spread.
Area of Science:
- Neonatal Medicine
- Infectious Diseases
- Public Health
Background:
- Group B streptococcal (GBS) infections pose a significant threat to neonates.
- Neonatal intensive care units (NICUs) are vulnerable settings for hospital-acquired infections.
- Understanding transmission dynamics is crucial for controlling outbreaks.
Purpose of the Study:
- To report and analyze an outbreak of invasive GBS infections in a NICU.
- To identify potential sources and transmission routes of GBS during the outbreak.
- To evaluate the effectiveness of infection control interventions.
Main Methods:
- Retrospective case review of GBS infections within the NICU.
- Microbiological investigation of clinical isolates and environmental samples.
- Implementation and monitoring of infection control protocols.
Main Results:
- Five cases of invasive GBS infections were identified over a 3-month period.
- A prolonged GBS-colonized infant and environmental contamination were suspected as sources.
- Implemented infection control interventions halted additional GBS cases.
Conclusions:
- Neonatal GBS outbreaks necessitate prompt investigation and control.
- Environmental hygiene and surveillance of colonized infants are critical in NICUs.
- Effective infection control strategies can prevent the spread of GBS in high-risk settings.
Abstract:
This article reports five invasive Group B streptococcal (GBS) infections that occurred in a neonatal intensive care unit for about 3 months. This outbreak might have been associated with a prolonged GBS colonized infant and adjacent environmental contaminations. Infection control interventions prevented the additional spread of GBS infections.
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