2011-03-12-世界卫生组织-Meningitis_Week_10,_7_-_13_March_2011_9页_915kb

Meningitis Weekly Bulletin Summary - Week 10, 2011

I. Epidemiological Situation (Week 10: March 07-13, 2011)

• District-Level Data: Data provided for districts within countries like Burkina Faso and Chad show specific areas reaching epidemic or alert thresholds based on attack rates (AR).
  • Burkina Faso: 3 districts (Pama, Tenkodogo, Saponé) reached epidemic thresholds (ARs ranging up to 8.5 cases).
  • Chad: 6 districts are in epidemic (e.g., Koumra, Benoye - AR up to 35.6) with 3 districts in alert.
• Cumulative Data (Weeks 1-10, 2011):
  • Total confirmed cases: 5489, Deaths: 648, Overall Case Fatality Rate (CFR): ~11.6%.
  • Highest CFRs reported from Benin (21.9%), Burkina Faso (18.9%), Cameroon (18.8%), Togo (15.1%).
  • Chad leads in total cases (1592) and remains heavily affected with multiple districts in epidemic status.
• Pathogens (Weeks 1-10, 2011): Streptococcus pneumoniae (Spn) is identified as the predominant pathogen in most countries.

II. Key Findings & Notes

• The majority of cases (5489) were reported from 11 countries during weeks 1-10.
• Benin contributed significantly to the cumulative caseload (96 cases) but also had the highest CFR during this period.
• Chad demonstrated the highest total case load and maintained epidemic activity in multiple districts at the end of week 10.

III. Data Accessibility

• Contact the Inter Country Support Team - West Africa for inquiries regarding these data.

*This summary provides a concise overview of the key epidemiological data and findings presented in the original weekly bulletin.*