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Published on: November 5, 2019
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P Agouridakis1, E Ioannidou, M Dalezios
1General Hospital of Rethymno, Rethymno, Greece.
Abstract:
Streptococcus agalactiae is a rare cause of meningitis in healthy non-pregnant adults. A case of S. agalactiae meningitis is reported in a previously healthy young woman following sexual intercourse for the first time. The vaginal flora was the verified source of infection.
Insights
Streptococcus agalactiae meningitis is rare in healthy adults. This case highlights vaginal flora as a potential source of infection following first-time sexual intercourse in a young woman.
Area of Science:
- Infectious Diseases
- Microbiology
- Neurology
Background:
- Streptococcus agalactiae (Group B Streptococcus) commonly colonizes the vaginal tract.
- Meningitis is an infection of the membranes surrounding the brain and spinal cord.
- While common in neonates, S. agalactiae meningitis is infrequent in healthy, non-pregnant adults.
Observation:
- A case report details a previously healthy young woman who developed meningitis.
- The onset of meningitis occurred after her first experience of sexual intercourse.
- The patient had no significant past medical history or known risk factors.
Findings:
- Cerebrospinal fluid analysis confirmed Streptococcus agalactiae as the causative pathogen.
- The vaginal flora was identified as the verified source of the S. agalactiae infection.
- This suggests a potential route of transmission from the vaginal microbiome to the central nervous system.
Implications:
- This case expands the understanding of rare meningitis etiologies in young adults.
- It underscores the importance of considering the vaginal microbiome in the differential diagnosis of meningitis in specific populations.
- Further research may explore the mechanisms of translocation and risk factors for S. agalactiae meningitis in non-pregnant adults.
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