[Pneumococcal meningitis in children in France: 832 cases from 2001 to 2007]

C Levy1, E Varon, E Bingen

  • 1GPIP (Groupe de Pathologie Infectieuse Pédiatrique) de la SFP (Société Française de Pédiatrie), 27 rue Inkermann, F94100 Saint Maur des Fossés, France. activ@activfrance.fr

Insights

Pneumococcal meningitis cases in children did not decline as expected in France due to insufficient vaccination coverage with the 7-valent pneumococcal conjugate vaccine (PCV7). However, PCV7 significantly reduced vaccine-type pneumococcal meningitis in vaccinated children.

Area of Science:

  • Pediatric Infectious Diseases
  • Vaccinology
  • Epidemiology

Context:

  • Pneumococcal meningitis is a leading cause of child mortality and morbidity in France.
  • The Groupe de Pathologie Infectieuse Pédiatrique (GPIP) and Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV) established surveillance for pneumococcal meningitis.
  • The study aimed to analyze clinical features and the impact of the 7-valent pneumococcal conjugate vaccine (PCV7).

Purpose:

  • To assess the incidence and characteristics of pneumococcal meningitis in French children.
  • To evaluate the impact of PCV7 on pneumococcal meningitis cases.
  • To identify trends in serotypes causing meningitis in vaccinated and unvaccinated children.

Summary:

  • A 7-year surveillance (2001-2007) identified 832 pneumococcal meningitis cases among 2951 bacterial meningitis cases in children aged 0-18 years.
  • No significant decline in overall pneumococcal meningitis cases was observed, with peaks incidence at 5 months.
  • In vaccinated children (2003-2007), few vaccine-type (VT) serotypes were identified, with serotype 19A being prominent in non-vaccine types.

Impact:

  • Insufficient PCV7 coverage and slow vaccine implementation likely contributed to the lack of expected decline in pneumococcal meningitis.
  • PCV7 demonstrated a clear impact by significantly reducing VT pneumococcal meningitis in vaccinated children.
  • The case fatality rate remained stable at approximately 11.4% throughout the study period.
Abstract

Related Concept Videos

Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...