2007-04-26-世界卫生组织-Meningitis_Week_17,_21_April_2008_to_27_April_2008_11页_1mb

Summary of MDSC Meningitis Weekly Bulletin, Week 17 2008

Epidemiological Situation Week 17 (April 21-27, 2008)

• Total suspected cases: 1,800, with deaths: 139 (lethality rate 7.7%).
• High burden in Burkina Faso (cases: 500), Mali (101), Nigeria (614), Niger (553), and Chad (5), with varying lethality rates (e.g., Burkina Faso: 10.2%, Nigeria: 7.7%).
• Burkina Faso had 5 districts in epidemic phase and 5 in alert. Nigeria had 8 LGAs at epidemic threshold and 7 at alert. Niger and Mali showed active epidemic zones.
• Warning: Epidemic phases continue in Nigeria and Niger; Cameroon is silent, and some countries (Ghana, DRC) need data updates.

Synthesis of 2008 Data (Weeks 1-17)

• Burkina Faso most affected by far, with 8,882 cases and 99.9% of districts reporting.
• Overall lethality: 9.4%, with nations like Burkina Faso and Chad facing high risks (Burkina Faso: 9.7%, Chad: 11.5%).
• Cameroon is highlighted as a silent country with no reported cases, and regions must report updates.
• Deaths due to meningitis in this period: 1,914, with ongoing concern in affected countries.

Pathogen Identification

• Next predominant pathogen (NmA) is reported frequently.
• Lab testing remains low across most countries, except Niger, where some LCRs were conducted.

This summary highlights widespread meningitis activity in African nations, emphasizing Burkina Faso as severely impacted, and continues urging better surveillance and data reporting to manage spread and lethality.