2012-02-04-世界卫生组织-Meningitis_Week_05,_30_January_-_5_February_2012_9页_575kb

Meningitis Weekly Bulletin Summary

I. Epidemiological Situation (Week 05, 2012)

• Total Cases (01-05 Feb 2012): 311 cases reported across 13 countries
• Fatalities: 30 deaths (9.6% overall lethality)
• Countries with High Cases: Benin (31), Burkina Faso (119), Tchad (57)
• Alert/Epidemic Districts:
  • Benin: Pérécué in epidemic, Cobly in alert
  • Burkina Faso: Karangasso Vigué and Gayerie in alert
  • Côte d'Ivoire: Tengrela in alert
  • Tchad: Goundi in alert
• Key Notes:
  • Higher attack rates reported in epidemic zones
  • Recommended use of ceftriaxone for case management

II. Annual Summary (Jan-May 2012)

• Cumulative Cases: 1,997 cases reported in weeks 01-05
• Cumulative Deaths: 208 deaths (10.4% overall lethality)
• Countries Reporting: Benin, Burkina Faso, Chad, Côte d'Ivoire, Ghana, Mali, Niger, Nigeria, Sudan, Togo
• Tracking: Central African Republic data pending
• Alert Information: 9 districts reported during this period

III. Pathogen Identification

• Laboratory Data:
  • Majority cases caused by N. meningitidis (W135 serogroup predominant)
  • Streptococcus pneumoniae remains significant pathogen
  • PCR results pending from some districts

IV. General Observations

• NmW135 and Spn remain dominant pathogens
• Lethality remains below 10% threshold in most areas
• Enhanced surveillance continues across West African countries