2009-01-17-世界卫生组织-Meningitis_Week_03,_12-18_January_2009_8页_522kb

Summary of MDSC Meningitis Weekly Bulletin, Week 03 (January 12-18, 2009)

I. Epidemiological Situation for Week 03 (January 12-18, 2009)

• Countries reporting cases: Benin, Burkina Faso, Mali, Nigeria, Chad, Togo.
• Notable data:
  • Burkina Faso: 144 cases, 21 deaths (14.6% lethality), exceeding epidemic threshold with an attack rate of 27.8 per 100,000.
  • Nigeria: 76 cases, 6 deaths (7.9% lethality); Bayo LGA in Borno State remains in alert phase with an attack rate of 5.7.
  • Chad: 27 cases, 5 deaths (18.5% lethality); District of Goundi remains in alert phase with an attack rate of 5.7.
  • Benin: 11 cases, 1 death (9.1% lethality).
  • Mali: 12 cases, 2 deaths (16.7% lethality).
  • Togo: 1 case, 0 deaths.
• Total for week 03: 270 cases, 35 deaths (13.0% lethality in districts with complete data).

II. Cumulative Epidemiological Situation for Weeks 1-03, 2009

• Total reported cases for weeks 01-03: 806.
• Total deaths: 93 (11.5% overall lethality).
• Inactive or low activity: Cameroon, Central African Republic, Ethiopia, Ghana, Guinea.
• Active or high activity: Burkina Faso, Niger, Nigeria, Chad, Benin, Mali, Togo.
• Alerts and missions: An MDSC mission is in Chad for epidemic response; another mission planned for Nigeria to support preparation, response operations, and training.

III. Pathogen Identification and Laboratory Recommendations

• Pathogens identified via PCR, LATEX, or Culture, with data collected but incomplete for many countries.
• Recommendation: Countries like Benin and Niger should increase laboratory specimen collection to identify circulating pathogens early and prevent missed alerts.

IV. Ongoing Support and Epidemic Response

• Enhanced surveillance and response activities due to ongoing alerts and epidemics in Niger, Nigeria, and Chad.
• Data for trends and maps visualized graphically, showing comparisons with 2008 data when available.