Related Experiment Video
Updated: Aug 12, 2026

Non-Invasive Model of Neuropathogenic Escherichia coli Infection in the Neonatal Rat
Published on: October 29, 2014
Bacteroides fragilis septicaemia and meningitis in early infancy
Abstract:
A case of recurrent Bacteroides fragilis septicaemia leading eventually to meningitis in a 6-week-old infant is reported. Perforation of the small bowel at the constriction ring of a strangulated inguinal hernia caused a faecal peritonitis and was the primary source of infection. Erythromycin, to which the isolate was fully sensitive in vitro, was only temporarily an effective treatment; the infection was finally eradicated with chloramphenicol, and the baby made a full recovery. Bacteroides infections in infancy and childhood are briefly reviewed.
Insights
A rare case of infant Bacteroides fragilis sepsis and meningitis, originating from a strangulated inguinal hernia, highlights treatment challenges. Chloramphenicol ultimately resolved the severe bacterial infection, leading to full recovery.
Area of Science:
- Pediatrics
- Infectious Diseases
- Neonatal Care
Background:
- Bacteroides fragilis infections are uncommon in infants and children.
- Septicemia and meningitis pose significant risks in neonates.
- Intra-abdominal sources, like hernias, can lead to severe sepsis.
Purpose of the Study:
- To report a unique case of recurrent Bacteroides fragilis sepsis and meningitis in an infant.
- To discuss the source of infection and treatment strategies.
- To review Bacteroides infections in pediatric populations.
Main Methods:
- Case report of a 6-week-old infant.
- Identification of Bacteroides fragilis as the causative agent.
- In vitro antibiotic sensitivity testing and clinical treatment course documentation.
Main Results:
- The infant developed recurrent Bacteroides fragilis sepsis and meningitis secondary to a perforated strangulated inguinal hernia.
- Erythromycin showed in vitro sensitivity but provided only temporary clinical improvement.
- Chloramphenicol was effective in eradicating the infection, leading to complete recovery.
Conclusions:
- Bacteroides fragilis can cause severe invasive infections in neonates, including meningitis.
- Treatment requires careful consideration of antibiotic efficacy and source control.
- Prompt diagnosis and appropriate antimicrobial therapy are crucial for favorable outcomes in neonatal sepsis.
Related Concept Videos
Development of Human Microbiota
Development of the Oral Microbiota
Bacterial Meningitis
Viral Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

