2010-10-02-世界卫生组织-Meningitis_Week_35-39,_30_August_-_3_October_2010_9页_763kb

Meningitis Weekly Bulletin Summary: West Africa Region, Week 35-39 (2010)

This summary analyzes the Inter Country Support Team-West Africa's Weekly Epidemiological Bulletin for Week 35-39 (August 30 - October 3, 2010) and the annual synthesis for reported weeks 1-39 in 2010. The data includes country-specific cases, deaths, lethality rates, and pathogen identifications.

Key Epidemiological Findings (Week 35-39)

• Overall Situation: The epidemiological situation was calm during this period, with no districts in alert or epidemic status.
• Cases and Deaths: Total cases reported were 672, leading to 64 deaths, resulting in a case fatality rate of 9.5%. Most countries reported low lethality rates (e.g., Benin and Burkina Faso <10%), except Niger, which had a high lethality of 30.8%.
• Pathogen Data: Pathogen identification via PCR, LATEX, or culture showed varying prevalence across countries, but specific details were limited.

Annual Synthesis (Weeks 1-39, 2010)

• Cumulative Data: For the full reporting period, 25,756 cases were reported, with 2,715 deaths and an overall case fatality rate of 10.5%. No districts were classified as in alert or epidemic during the inter-epidemic period.
• Country Highlights: Nigeria had the highest number of cases (4,863) and deaths (334), while Niger saw 2,853 cases and 241 deaths (lethality 8.4%). Other countries like Ghana and Nigeria also showed high burdens.
• Pathogens: Streptococcus pneumoniae was identified as a predominant pathogen in some districts, contributing significantly to infections.

The bulletin indicates a stable situation with low lethality rates, but emphasizes the continued need for surveillance given cumulative figures.