2012-06-30-世界卫生组织-Meningitis_Week_26,_25_June_-_1_July_2012_14页_547kb

报告摘要

Epidemic Season End: Week 26 concludes the 2012 cerebrospinal meningitis epidemic season, reported as calm by the Inter country Support Team - West Africa.
Epidemiological Highlights:
- NmW135 was the dominant pathogen, causing most cases and epidemics in West Africa, with Burkina Faso as the epicenter. Other affected countries included Ghana, Benin, and Côte d'Ivoire in their northern regions.
- A second epidemic focus in Chad was primarily driven by Nm in unvaccinated areas.
- Total cases for the season (weeks 1–26) were 21,532, with 1,823 deaths (8.5% lethality), and NmW135 accounted for over 53% of identified pathogens.
Laboratory and Reporting Notes:
- Streptococcus pneumoniae was the second most common pathogen (29%).
- Continuous case reporting and laboratory confirmation are recommended year-round, with lab diagnostics to be enhanced for future trend monitoring.
- Lessons from NmW135 vaccine shortages should inform control efforts.
Reporting Changes:
- Bulletin frequency shifts to monthly from this inter-epidemic period until late 2012, resuming weekly in 2013.
- Countries should submit end-of-season reports.
Contact Info: Reach out to the Inter country Support Team for further details.