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Published on: May 19, 2020
Childhood meningitis in the conjugate vaccine era: a prospective cohort study
Manish Sadarangani1, Louise Willis1, Seilesh Kadambari2
1Department of Paediatrics, University of Oxford, and the NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK.
Insights
Viral meningitis is now more common than bacterial meningitis in UK children. Early diagnosis using cerebrospinal fluid (CSF) and C-reactive protein (CRP) levels is crucial for effective treatment and reducing antibiotic use.
Area of Science:
- Pediatric infectious diseases
- Epidemiology of meningitis
- Clinical diagnostics
Background:
- Bacterial conjugate vaccines have significantly altered childhood meningitis epidemiology.
- Viral meningitis is increasingly prevalent, yet current UK epidemiology remains unclear.
- Understanding contemporary meningitis causes in children is essential for public health.
Purpose of the Study:
- To determine the current epidemiology of meningitis in children under 16 in the UK.
- To identify causative pathogens and compare clinical features and diagnostic markers.
- To highlight the need for improved diagnostics for non-bacterial meningitis.
Main Methods:
- Prospective study involving children under 16 with suspected meningitis across 3 UK hospitals.
- Pathogen identification in cerebrospinal fluid (CSF) and clinical data collection.
- Analysis of clinical features, CSF white blood cell count, plasma C-reactive protein (CRP), and CSF protein levels.
Main Results:
- Of 388 children, 70 had meningitis: 13 bacterial, 26 viral, and 29 with unidentified pathogens.
- Group B Streptococcus was the most frequent bacterial cause.
- CSF white blood cell count, plasma CRP, and CSF protein (in infants <3 months) differentiated bacterial from viral meningitis.
Conclusions:
- Viral meningitis is now predominant in the studied UK pediatric population.
- Clinical features were only distinct in infants (<3 months) with bacterial meningitis.
- Enhanced diagnostic methods for non-bacterial meningitis are critical to optimize antibiotic stewardship and reduce hospital stays.
Abstract:
Bacterial conjugate vaccines have dramatically changed the epidemiology of childhood meningitis; viral causes are increasingly predominant, but the current UK epidemiology is unknown. This prospective study recruited children under 16 years of age admitted to 3 UK hospitals with suspected meningitis. 70/388 children had meningitis-13 bacterial, 26 viral and 29 with no pathogen identified. Group B Streptococcus was the most common bacterial pathogen. Infants under 3 months of age with bacterial meningitis were more likely to have a reduced Glasgow Coma Score and respiratory distress than those with viral meningitis or other infections. There were no discriminatory clinical features in older children. Cerebrospinal fluid (CSF) white blood cell count and plasma C-reactive protein at all ages, and CSF protein in infants <3 months of age, distinguished between bacterial meningitis and viral meningitis or other infections. Improved diagnosis of non-bacterial meningitis is urgently needed to reduce antibiotic use and hospital stay.
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