2015-06-13-世界卫生组织-Meningitis_weekly_bulletin_8_-_14_June_2015_12页_1mb

报告摘要

Total cases: 205 suspected meningitis cases reported.
Total deaths: 13 deaths recorded, with an overall lethality rate of 6.3%.
Affected countries: Benin (12 cases, 2 deaths, 16.7% lethality), Burkina Faso (27 cases, 1 death, 3.7% lethality), Mali (13 cases, 0 deaths, 0% lethality), and others with listed cases and deaths.
Alerts: One district in Benin was issued an alert notice.
Data completeness: High for most countries, at 100% or above 90%, except for the Democratic Republic of the Congo (10.1%) due to its location outside the African meningitis belt, making thresholds inapplicable.
Total impact: 205 cases and 13 deaths across the reporting period.

Cumulative cases: 18,094 suspected meningitis cases reported over weeks 01–24.
Cumulative deaths: 1,339 deaths, resulting in a lethality rate of 7.4%.
Alerts and epidemics: Several districts across multiple countries were monitored, with alerts recorded, but no full epidemics declared based on data.
Completeness of reporting: Ranges from approximately 100% in many regions to lower percentages (e.g., DRC reported 20.0%), indicating variability in data submission.
Overall trends: Cases peaked in mid-2015, with high cumulative numbers in countries like Niger and Nigeria.

Sample analysis: 3,550 cerebrospinal fluid (CSF) samples submitted from suspected cases.
Pathogens identified: Predominant meningococcal strains include NmA in some countries like Burkina Faso and Niger, NmB widespread, and others such as Hib triggered further investigation.
Testing coverage: The submission rate was 19.6% of reported cases, with investigations incomplete in some instances, such as pending confirmation from Burkina Faso.
Key findings: Dominant pathogens vary by country, supporting targeted interventions for strains like NmA.

The bulletin highlights data subjectivity to change post-verification and emphasizes the need for enhanced surveillance in high-risk areas.
No overall epidemic declared for week 24, but ongoing monitoring recommended due to regional alerts and high case counts.

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