2008-03-22-世界卫生组织-Meningitis_Week_12,_17_March_2008_to_23_March_2008_9页_541kb

MDSC Meningitis Weekly Bulletin Summary (Week 12, 2008)

I. Epidemiological Situation (Week 12, 17-23 March 2008):

• Incidence: Cases reported from Benin, Burkina Faso, Côte d'Ivoire, Ethiopia, Nigeria, and Togo.
• Key Trends:
  • Burkina Faso and associated districts show activity, with the epidemic curve starting a descent this week.
  • Mali (Commune 2, Bamako) and Nigeria (specific LGAs) experience high incidence/disease levels.
  • Niger and Côte d'Ivoire show increasing trends.
  • Total cases for the week: 1,366.
  • Total deaths: 106.
  • Overall district mortality rate: 7.8%.

II. Synthesis (Weeks 1-12, 2008):

• Cumulative Cases: 10,342 cases reported across the countries under surveillance.
• Cumulative Deaths: 1,096 deaths, giving an overall mortality rate of 10.6%.
• Epidemic/District Alert Status:
  • Burkina Faso: Highest cumulative cases (5,892) and deaths (1,101).
  • Benin: High case count (1,884) and high mortality rate (13.0%).
  • Cameroon is not included (likely not within the "meningitis belt" mentioned).
  • Nigeria and Niger also show significant incidence.
• Survival Rate: 92.2% of cases resulted in survival.

III. Pathogen Identification:

• Neisseria meningitidis group A (NmA) is the predominant pathogen identified (via PCR, Lateral Flow, Culture).
• Regular laboratory data reporting is encouraged, particularly highlighting data from Niger.

IV. Graphical Representations (Summary):

• Maps showing meningitis attack rates by district at weeks 1-12, 2008.
• Trends comparing weekly case evolution between 2007 and 2008 (data limit varies by country).