2003-03-23-世界卫生组织-Meningitis_Week_11,_1_January_2003_to_16_March_2003_4页_178kb

报告摘要

WHO Regional Meningitis Surveillance Report Summary - End of Week 11, March 16, 2003
- Benin: Active epidemic in two districts (Tanguieta, Toucountona), vaccination completed with serogroup A+C. Cases: 220 reported between Weeks 1-9, Deaths: 44, CFR: 20%.
- Burkina Faso: Weekly attack rates decreased slightly since Week 9. Vaccination ongoing in multiple districts. Cases: 4,762 (Weeks 1-11), Deaths: 704, CFR: 15%.
- Niger: Increasing weekly attack rates. Niamey sector 1 in alert status due to W135 strain isolation. Cases: 2,809 (Weeks 1-11), Deaths: 248, CFR: 9%, part of ongoing vaccination.
- Nigeria: Two W135 cases identified out of seven specimens; field investigations active. Cases: 272 (Weeks 1-9), Deaths: 139, CFR: 51%.
- Chad: Three districts under alert as of Week 9. Cases: 185 (Weeks 1-9), Deaths: 25, CFR: 14%. No other alerts specified.
- Mali: Low attack rates, no epidemics. Cases: 185 (Weeks 1-10), Deaths: 20, CFR: 11%. Incomplete data.
- Ghana and Togo: Sustained low attack rates with high case fatality in Togo. Cases/GDeaths as of Week 4: Ghana 650 cases, 93 deaths, CFR 14%; Togo 63 cases, 12 deaths, CFR 19%.
- Regional Trends: W135 meningitis strains increasing in some areas, with attacks rising in Niger and ongoing in Nigeria. Average CFR across countries 12-51%, majority under surveillance or vaccination.

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