2022-02-05-世界卫生组织-Meningitis_Weekly_bulletin_31_January_to_6_February_2022_26页_2mb

Meningitis Weekly Bulletin Summary

I. Epidemiological Situation (Week 05):

• Total suspected meningitis cases reported in 17 countries: 482.
• Deaths reported: 27 (Case Fatality Rate = 5.6%).
• Three districts exceeded epidemic thresholds: Cameroon (1 district), Republic of Congo (6 districts), South Sudan (9 districts, including 3 in 3 countries).
• High attack rates reported in Cameroun (Nguelemendouk), Niger (Zinder districts), DR Congo (Haut-Lomami province districts), and Chad (Goundi).
• Noted incomplete data completeness for some countries, including Central African Republic (57.1%) and Republic of Congo (11.3%).
• Encouragement to strengthen surveillance and conduct lab confirmation for suspected cases.

II. Summary of Situation (Weeks 01-05):

• Cumulative cases across weeks 1-5: 1989 suspected cases.
• Total deaths: 120 (Case Fatality Rate = 6.0%).
• Alerts reported in 9 countries, including Cameroon, Niger, South Sudan, Chad, etc.
• Case fatality rates vary widely, with South Sudan having a high rate of 50%.
• Encouragement to update epidemic response plans, share experiences, and improve surveillance in the initial meningitis season.

III. Laboratory Data Summary:

• Only 9 countries reported laboratory data.
• A total of 89 Neisseria meningitidis isolates were identified, with Neisseria meningitidis serogroup C (NmC) being predominant in Niger (70.8%).
• Improvements in microbiological surveillance and laboratory capacity are recommended.

IV. Recommendations:

• General recommendations include strengthening surveillance, laboratory testing, vaccination efforts, and coordination for meningitis prevention and control.
• Specific requests include developing a modeling tool for meningitis risk, enhancing genomic surveillance, and establishing a database for meningitis survivors by mid-2022.
• Recommendations also emphasize communicating strategically, sharing annually and quarterly reports, and integrating meningitis surveillance with other national health initiatives.