2003-04-08-世界卫生组织-Meningitis_Week_13,_1_January_2003_to_23_March_2003_4页_175kb

Epidemic Situation:

• Niger has two new epidemic districts (Illela and Tessaoua), with Niamey sector 1 in alert for 3 weeks. Total cases: 4,121, deaths: 346, CFR: 8.4%.
• Benin has 2 districts under enhanced surveillance with 2 isolates of Nm W135. Total cases: 220 (Weeks 1-9), deaths: 44, CFR: 20.0%. Vaccination completed.
• Burkina Faso has 8 districts finished vaccination; Niamey sector Batie in surveillance. Total cases: 5,782 (Weeks 1-13), deaths: 847, CFR: 14.6%.
• Chad has 3 districts in alert; data incomplete. Total cases: 333 (Weeks 1-13), deaths: 53, CFR: 16.0%.
• Ghana has no new lab data; Kadiolo district in alert Week 13. Total cases: 1,242 (Weeks 1-13), deaths: 157, CFR: 12.6%.
• Mali has Kadiolo in alert Week 13; partial lab data. Total cases: 433 (Weeks 1-13), deaths: 29, CFR: 6.7%.
• Nigeria has alerts in S. Tankarkar, Babura, and Gumel LGAs. Total cases: 435 (Weeks W52-W11), deaths: 146, CFR: 33.6%. 2 isolates of Nm W135.
• Togo has East Mono district in alert Week 6; partial data. Total cases: 197 (Weeks 1-11), deaths: 41, CFR: 20.8%.

Overall Summary: High incidence and case fatality rates in the African meningitis belt, with serogroup A and W135 pathogens identified. Vaccination efforts ongoing in several countries to control outbreaks. World Health Organization report dated April 9, 2003, covers data up to March 23, 2003.