2011-05-21-世界卫生组织-Meningitis_Week_20,_16_-_22_May_2011_10页_408kb

Meningitis Weekly Bulletin Summary (Week 20, 2011)

Epidemiological Data for Week 20 (May 16-22, 2011):

• Total Cases: 190
• Total Deaths: 21 (Case Fatality Rate: 11.1%)
• Chad: 3 districts in alert (Alger, Mangalmé, Danamadji)
• Highest Attack Rates: Chad, Burkina Faso, Nigeria

Cumulative Data (Weeks 1-20, 2011) vs. 2010:

• Total Cases (2011): 17,555 vs. 20,344 (2010)
• Total Deaths (2011): 1,542 vs. 2,158 (2010)
• 2011 outbreaks concentrated in Chad and Cameroon, while 2010 cases were primarily in Chad, Burkina Faso, and Nigeria.

Pathogen Identification:

• Most Common Pathogens: Streptococcus pneumoniae (Spn) and NmW135.
• PCR, LATEX, and culture methods confirmed these pathogens.

Data Completeness:

• District Reporting (Weeks 1-20, 2011): 95.2% of districts reported.

Key Recommendations:

• Enhanced surveillance and response in high-risk districts, especially in Chad.
• Continue monitoring using standardized methods.
• Prepare for potential trends based on seasonal comparisons.