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Updated: Aug 30, 2026

Non-Invasive Model of Neuropathogenic Escherichia coli Infection in the Neonatal Rat
Published on: October 29, 2014
[Etiology and evolution of bacterial meningitis in a pediatric center]
Roberta M C Romanelli1, Claudete A Araújo, Miriam W Dias
1Universidade Federal of Minas Gerais, Belo Horizonte, MG, Brazil.
Abstract:
OBJECTIVE: To establish the prevalence of the etiological agents of bacterial meningitis in a reference center for the treatment of infectious diseases in the state of Minas Gerais. METHODS: Descriptive study including all children with probable diagnosis of meningitis between June/1999 and November/1999. RESULTS: There were 210 cases of meningitis, and 111 (52.9%) were caused by bacteria. Actually, 52 were probable bacterial meningitis (with liquor alterations) and 59 were confirmed (with culture and/or antigen tests). The main agents were: Haemophilus influenzae, Neisseria meningitidis and Streptococcus pneumoniae. The initial treatment for children aged between three months and five years consisted of ampicillin and chloramphenicol. Later, the antibiotic was changed to penicillin in cases of Neisseria meningitidis and Streptococcus pneumoniae. and to chloramphenicol in cases of Haemophilus influenzae. Extended spectrum antimicrobial agents were used on clinical or laboratory basis, but resistant microorganisms were not found in cultures. CONCLUSIONS: The epidemiology of meningitis should be continuous and should consider local data in order to guide antimicrobial therapy. The continuous monitoring of the prevalent agents in each institution and their resistance is fundamental to the selection of antimicrobial drugs, preserving the antimicrobial agents, and causing less interference with individual colonization, without contributing to the increasing resistance of the agents responsible for meningeal infections.
Insights
This study identified Haemophilus influenzae, Neisseria meningitidis, and Streptococcus pneumoniae as the primary bacterial agents causing meningitis in Minas Gerais children. Continuous monitoring of prevalent agents and resistance is crucial for effective antimicrobial therapy.
Area of Science:
- Infectious Diseases
- Microbiology
- Pediatrics
Background:
- Bacterial meningitis remains a significant cause of childhood morbidity and mortality globally.
- Understanding the etiological agents and their prevalence is essential for guiding effective treatment strategies.
Purpose of the Study:
- To determine the prevalence of bacterial meningitis etiological agents in a reference infectious disease center in Minas Gerais.
- To inform local antimicrobial therapy guidelines based on prevalent pathogens.
Main Methods:
- A descriptive study was conducted on children with a probable diagnosis of meningitis between June and November 1999.
- Data included clinical information, cerebrospinal fluid (CSF) analysis, and microbiological tests (culture and antigen detection).
Main Results:
- Out of 210 meningitis cases, 111 (52.9%) were bacterial.
- The most common bacterial agents identified were Haemophilus influenzae, Neisseria meningitidis, and Streptococcus pneumoniae.
- No resistant microorganisms were found in cultures, and initial treatments involved ampicillin and chloramphenicol.
Conclusions:
- Continuous epidemiological surveillance of meningitis is necessary to guide antimicrobial therapy.
- Regular monitoring of prevalent agents and their resistance patterns is fundamental for selecting appropriate antimicrobial drugs.
- This approach helps preserve antimicrobial efficacy and minimize the development of resistance.
Related Concept Videos
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology
Bacterial Meningitis
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Encephalitis l: Introduction
