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Updated: Oct 13, 2026

Non-Invasive Model of Neuropathogenic Escherichia coli Infection in the Neonatal Rat
Published on: October 29, 2014
[Bacterial meningitis in infants 1 to 8 weeks old]
1Service d'urgence et de réanimation pédiatrique, hôpital Edouard-Herriot, Lyon, France.
Insights
Bacterial meningitis in infants is a severe condition. Prompt diagnosis and treatment are crucial, especially for fever in infants under two months old, to reduce high mortality and morbidity rates.
Area of Science:
- Pediatrics
- Infectious Diseases
- Neonatology
Context:
- Bacterial meningitis poses a significant threat to newborns and infants.
- High mortality (24%) and morbidity (30-50%) rates underscore the severity of this condition.
- A retrospective study was conducted to analyze epidemiological data from 1982 to 1997.
Purpose:
- To characterize the epidemiology of bacterial meningitis in infants younger than 60 days.
- To identify common pathogens and clinical presentations in this age group.
- To highlight the need for early intervention in suspected cases.
Summary:
- The study included 35 infants (6-60 days old) with bacterial meningitis.
- Hyperthermia was the most frequent symptom (97%); neurological signs were less common.
- Key pathogens identified were group B Streptococcus (36%), Escherichia coli (28%), meningococcus (8.6%), and Staphylococcus aureus (8.6%).
Impact:
- Emphasizes the critical importance of rapid diagnosis, including cerebrospinal fluid (CSF) analysis.
- Stresses the necessity of timely antimicrobial therapy for febrile infants under two months.
- Aims to improve outcomes for infants diagnosed with bacterial meningitis.
Abstract:
Bacterial meningitis in the newborn and infant remains a serious problem, with a mortality rate of 24% and a morbidity rate ranging from 30 to 50%. This retrospective study conducted between January 1982 and December 1997, aims to characterize the epidemiology of bacterial meningitis in infants less than 60 days of age. Thirty-five infants between 6 and 60 days of age, hospitalized for bacterial meningitis in the pediatric units of Edouard-Herriot Hospital in Lyon, France, were included. The clinical presentation was not specific for most cases, hyperthermia being the most common symptom (97%). Neurological symptoms such as bulging fontanelle or nuchal rigidity were present in 30% and 8% of the cases, respectively. The four predominant meningeal pathogens were: group B streptococcus (36%), Escherichia coli (28%), meningogoccus (8.6%) and Staphylococcus aureus (8.6%). This study emphasizes the importance of prompt diagnosis, including CSF evaluation, and antimicrobial therapy in infants less than 2 months of age presenting an isolated fever.
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