[Epidemiology of meningococcal infections and principles for the prevention of secondary cases]

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Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
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R Olivares1, B Hubert

  • 1Direction Générale de la Santé, Bureau des maladies transmissibles, Paris.

Annales De Pediatrie
|April 1, 1990
PubMed

Insights

Meningococcal infections vary with serotypes. Rhinopharyngeal carriage is natural immunization, but transmission factors like crowding and viral infections increase risk. Prevention focuses on chemoprophylaxis and immunization.

Area of Science:

  • Epidemiology
  • Microbiology

Context:

  • Meningococcal infections exhibit secular variations influenced by serotype distribution.
  • Rhinopharyngeal carriage of Neisseria meningitidis is a common community phenomenon and the primary route for natural immunization.
  • Transmission is facilitated by factors such as crowded living conditions, socioeconomic status, and viral respiratory infections.

Purpose:

  • To analyze the epidemiology of meningococcal infections, focusing on carriage, transmission, and secondary case prevention.
  • To review the role of chemoprophylaxis and immunization in controlling meningococcal disease spread.
  • To establish new French guidelines for managing meningococcal infections based on surveillance data and literature.

Summary:

  • Meningococcal infections show temporal variations in incidence and serotype prevalence.
  • Factors influencing transmission include community carriage, environmental conditions, and co-infections.
  • Secondary cases, though infrequent, pose a risk to close contacts, necessitating chemoprophylaxis and vaccination.

Impact:

  • Informs public health strategies for meningococcal disease control.
  • Provides evidence-based recommendations for chemoprophylactic agents like spiramycin and rifampin.
  • Contributes to updated French national guidelines for meningococcal infection prevention and management.

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