2012-02-11-世界卫生组织-Meningitis_Week_06,_6_-_12_February_2012_9页_594kb

Summary of Meningitis Weekly Bulletin - Week 06, 2012

Key Epidemiological Data for Week 06 (Feb 6-12, 2012)

• High meningitis incidence reported in several West African countries, with Burkina Faso having the highest case count (153 cases, 15 deaths, 9.8% lethality). Other significant contributors include Ghana, Benin, Togo, and Chad.
• Alerts were issued for districts in Benin, Burkina Faso, Ghana, and Chad, with Chad crossing into epidemic status in some areas.
• Total cases and deaths for the week: 411 cases and 37 deaths, with a week lethality rate of 9.0%.

Synthetic Overview for Weeks 01-06, 2012

• Cumulative cases and deaths over the first six weeks: 2,627 cases and 273 deaths (10.4% lethality).
• Three countries (Benin, Cote d'Ivoire, and Chad) had districts entering epidemic status during this period.
• Notable absences include pending data from the Central African Republic and lower reporting rates in some nations.
• Neisseria meningitidis remains the predominant pathogen, with NmW135 identified frequently in Burkina Faso, Ghana, and Cote d'Ivoire.

Agent Causalis and Pathogen Identification

• Laboratory data from weeks 01-06 show Neisseria meningitidis as the leading cause, with Streptococcus pneumoniae also present in some regions.
• High frequency of NmW135 reported in select countries, but most pathogens identified were common to the meningitis belt.

Graphical Representations

• Maps and charts were referenced to illustrate district-wise attack rates, cumulative trends, and pathogen distribution, but visual data are not included here.