2008-05-03-世界卫生组织-Meningitis_Week_18,_28_April_2008_to_4_May_2008_11页_1mb

MDSC Meningitis Weekly Bulletin Summary

I. Epidemiological Situation (Week 18, 28 Apr – 04 May 2008)

• Benin: 6 cases, 0 deaths.
• Burkina Faso: 278 cases, 28 deaths (10.1% lethality), 2 districts in epidemic phase, 3 in alert.
• Cameroon, Central African Republic, and others: Variable cases/deaths, no major alerts.
• Côte d’Ivoire/Ghana/Ethiopia: No data.
• Guinea/Niger/Togo: Significant cases; Niger: 362 cases (4.7% lethality).
• Mali: No deaths reported.
• Nigeria: 384 cases (4.4% lethality), 7 LGAs in epidemic phase, 3 in alert.
• Total Region (18 weeks): 1,084 cases, 63 deaths (5.8% lethality).

II. Year-to-Date Summary (Weeks 1–18)

• Burkina Faso: Highest burden (9,160 cases, 890 deaths, 100% reporting compliance).
• Nigeria & Niger: High caseloads with no trend reduction.
• Cameroon (silent), DRC, Ghana: Data incomplete.
• Alert/Epidemic Phases: Active in several districts; e.g., Mali (districts Kolokani), Niger (districts Illela, Madaoua).
• Mortality: Niger (5.4%), Burkina Faso (9.7%), Togo (17.6%).
• Pathogens: NmA dominant; PCR/culture rates remain low in most countries.

III. Key Findings

• Regional Distribution: High attack rates in endemic belt countries.
• Burkina Faso Highlights: Extensive epidemic phase, high lethality, and full reporting.
• Other Countries: Alarming trends in Mali, Nigeria, and Niger; need for improved data from Ghana and DRC.
• Underreported: Silent cases noted (e.g., Cameroon).

IV. Notes

• NmA remains the primary pathogen.
• Low lab testing rates, except for Niger.
• Ongoing epidemics in targeted districts require sustained surveillance and response.