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Updated: Aug 17, 2026

Non-Invasive Model of Neuropathogenic Escherichia coli Infection in the Neonatal Rat
Published on: October 29, 2014
Community-acquired Escherichia coli meningitis in adult
Shigeki Fujitani1, Toru Kamiya, Larry Kaufman
1University of Hawaii, Internal Medicine Department, USA. shigekif@upmc.edu
Abstract:
We report a case of E. coli meningitis presented initially without nuchal rigidity. Despite intensive care treatment, CSF was not sterilized and the patient died at 17 days after his admission. Patients with an unexplained altered sensorium with fever should undergo LP to evaluate for this rare entity and to direct early antimicrobial treatment which possesses efficacy for meningeal infection.
Insights
Escherichia coli (E. coli) meningitis can present without typical nuchal rigidity. Early lumbar puncture and targeted antimicrobial therapy are crucial for managing this rare but severe infection.
Area of Science:
- Neurology
- Infectious Diseases
- Microbiology
Background:
- Bacterial meningitis remains a significant cause of morbidity and mortality.
- Escherichia coli (E. coli) is a rare cause of meningitis, particularly in non-neonatal populations.
- Meningeal infections require prompt diagnosis and effective antimicrobial treatment.
Observation:
- A case of E. coli meningitis was observed.
- The patient presented with altered sensorium and fever, but notably lacked nuchal rigidity.
- Cerebrospinal fluid (CSF) analysis was critical for diagnosis.
Findings:
- Despite intensive care and appropriate treatment, the patient's CSF could not be sterilized.
- The patient succumbed to the infection 17 days after admission.
- This case highlights atypical presentations of E. coli meningitis.
Implications:
- Clinicians should consider E. coli meningitis in patients with unexplained fever and altered mental status, even without nuchal rigidity.
- Early lumbar puncture (LP) is essential for diagnosing rare meningeal pathogens.
- Prompt and targeted antimicrobial therapy is vital for improving outcomes in bacterial meningitis.
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