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[Purulent meningitis in children: special considerations for developing countries]
1Service de pédiatrie, Centre Hospitalier Intercommunal de Créteil, 40 avenue de Verdun, 94010 Créteil. philippe.reinert@chicreteil.fr
Abstract:
Bacterial meningitis is frequent in tropical zones as a result of recurring epidemics, meningococcal meningitis and near-total absence of anti-haemophilus type b vaccination. Recently the situation has been further complicated by the unexplained appearance of meningococcal W135 epidemics in Burkina-Faso. With regard to pneumococcal meningitis, the appearance of antibiotic strains is a worldwide phenomenon that has greatly increased the cost of antimicrobial treatment. Hopefully in the future children in tropical areas will be able to benefit from immunization using a conjugate vaccine combining anti-haemophilus b, meningococcal type a and W135 vaccination. In this regard the currently available 7 valence pneumococcal vaccine is poorly suited to tropical epidemiology and that an additional 4 serotypes would be needed to achieve 85% coverage.
Insights
Bacterial meningitis is a significant threat in tropical regions due to epidemics and lack of vaccination. New vaccines combining Haemophilus influenzae type b, meningococcal types a and W135, and pneumococcal serotypes are crucial for improved child immunization.
Area of Science:
- Tropical infectious diseases
- Vaccinology
- Epidemiology
Context:
- Bacterial meningitis, particularly meningococcal and pneumococcal, poses a significant public health challenge in tropical zones, exacerbated by recurring epidemics and limited vaccination coverage.
- The emergence of antibiotic-resistant strains of Streptococcus pneumoniae and the unexplained rise of Neisseria meningitidis W135 strains in Burkina Faso complicate treatment and control efforts.
Purpose:
- To highlight the epidemiological challenges of bacterial meningitis in tropical regions.
- To discuss the limitations of current vaccines and the need for broader coverage.
- To advocate for the development and implementation of comprehensive conjugate vaccines.
Summary:
- Bacterial meningitis is prevalent in tropical areas, driven by meningococcal epidemics and inadequate Haemophilus influenzae type b (Hib) vaccination.
- The emergence of meningococcal W135 and antibiotic-resistant pneumococcal strains increases disease burden and treatment costs.
- A future conjugate vaccine combining Hib, meningococcal A and W135, and additional pneumococcal serotypes is proposed to enhance protection.
Impact:
- Improved immunization strategies are essential to reduce the incidence and mortality of bacterial meningitis in tropical regions.
- The development of a multi-valent conjugate vaccine could significantly increase vaccine effectiveness against key meningitis pathogens.
- Achieving 85% coverage for pneumococcal meningitis may require a vaccine including four additional serotypes beyond the current 7-valent formulation.
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