2011-01-15-世界卫生组织-Meningitis_Week_02,_10_-_16_January_2011_7页_619kb

Meningitis Weekly Bulletin Analysis and Summary

I. Epidemiological Situation of Week 02 (January 10-16, 2011)

• Total Cases & Deaths: 240 cases and 43 deaths reported, with an overall lethality rate of 17.9%.
• Notable Countries:
  • Burkina Faso: High lethality (25.2%) especially in Lena district (attack rate 5.0%).
  • Chad: Significant cases (68), district of Laokassy surpassing epidemic threshold (attack rate 22.7 per 100,000).
• Pathogens: 69.5% of tested specimens were N.meningitidis, with some positive for pneumococcus, Hib, and W135.

II. Synthesis (Weeks 01-02, 2011)

• Total cases for weeks 01-02: 407 cases and 68 deaths (overall lethality 16.7%).
• Countries involved: Benin, Burkina Faso, Chad, Ghana, Niger, Nigeria, Togo.
• Silent countries urged to provide data to track the epidemic.
• Vaccine introduction note: Countries using MenAfriVac recommended switching to case-based surveillance.

III. Laboratory Data

• Details on pathogens identified via PCR/Latex tests.
• Lab testing: Countries urged to secure reagents and consumables for meningitis confirmation.

General Notes

• Graphical data shows attack rate distribution by district/country, as well as cumulative rates from weeks 01-02 (for target districts).
• Contact information provided for the Inter-country Support Team, West Africa.