2023-02-18-世界卫生组织-Meningitis_Weekly_bulletin_13_to_19_February_2023_18页_1mb

Meningitis Weekly Bulletin Summary

Epidemiological Situation for Week 07 (13-19 February 2023)

• Reported Countries: 17 countries shared epidemiological data.
• Total Cases and Deaths: 233 suspected meningitis cases, with 13 deaths, resulting in a case fatality rate of 5.6%.
• Alert Status: No districts were in epidemic phase; however, three districts crossed the alert threshold:
  • Benin (district: Natitingou) with an attack rate of 4.6 per 100,000.
  • South Sudan (county: Rumbek East) with an attack rate of 3.5 per 100,000.
  • Togo (district: Oti Sud) with an attack rate of 5.6 per 100,000.
• Completeness: Overall data completeness was 41%, indicating variations in reporting.

Cumulative Epidemiological Situation (Weeks 1-7, 2023)

• Total Cases and Deaths: 2,243 suspected cases reported by 20 countries, with 128 deaths, giving a case fatality rate of 5.7%.
• Alerts in Districts: 18 districts reported cases, with alerts and no full epidemics; silent countries include Ethiopia, Guinea Bissau, Kenya, Mauritania, and Nigeria.
• Recommendations: All countries are urged to enhance surveillance through case detection, data collection, analysis, and timely sharing, including laboratory data.

Laboratory Data Summary (Weeks 1-7, 2023)

• Reported Countries: 11 countries shared 1,220 lab samples; 471 were being analyzed, 616 tested negative, and 133 tested positive.
• Main Pathogens Identified: NmC (48.1%), Spn (40.6%), Hi non-b (3.8%), NmW (3.0%), and Hib (2.3%).
• Recommendations: Strengthen lumbar puncture practice, improve sample transportation and processing, and acquire necessary laboratory supplies for pathogen identification.

Annual Meeting Resolutions (December 2022 - December 2023)

• Key Actions: Focus on defeating meningitis by 2030.
  • Surveillance: Develop modeling tools for risk prediction (by WHO and partners) and subdivide high-risk districts (countries).
  • Laboratory: Ensure rapid lab confirmation (for pathogen identification and outbreak response).
  • Vaccination: Apply for GAVI support to introduce MenAfriVac in remaining countries.
  • Preparedness: Submit epidemic preparedness plans to AFRO (countries); consider using existing vaccine stockpiles in emergencies.
  • Deadlines: By December 2023, support at least 30 countries with strategic plans; ensure at least 50% of countries have post-survivorship systems by 2030, with implementation starting in 2023.
  • Other: Mobilize resources for preparedness, strengthen coordination, and provide quarterly updates on plan implementation.

MenAfriVac Introduction Progress (Countries in the African Meningitis Belt)

• Introduction Status: 14 countries have introduced MenAfriVac into routine immunization: Guinea, Togo, and Benin in recent years; Guinea-Bissau planned introduction by end of 2022.
• Catch-Up Campaigns: Successful rattrapage (catch-up) campaigns conducted, including integrated campaigns (e.g., Benin and Guinea's preventive campaigns).
• Vaccine Allocation: Guinea-Bissau provided doses to support fill gaps in vaccination efforts.