2012-04-28-世界卫生组织-Meningitis_Week_17,_23_-_29_April_2012_10页_515kb

Meningitis Weekly Bulletin Summary

Table 1: Epidemiological Situation of Week 17, April 23-29, 2012

• Total reported cases: 571
• Total reported deaths: 39
• Overall case fatality rate: 6.8%
• Three districts with alerts: Benin (district Tanguieta, attack rate 5.3/100,000), Burkina Faso (districts Pama 6.1/100,000 and Saponé 8.3/100,000), Nigeria (attack rate 98.1%)

Table 2: Synthesis of Epidemiological Situation, Weeks 01-17 (2012)

• Total cases for the season: 16,404
• Total deaths: 1,400
• Overall case fatality rate: 8.5%
• Most affected countries: Chad, Burkina Faso, Ghana
• Week 17 activity returning to normal; awaited data from lagging countries
• Gambia and Senegal joined the meningitis belt surveillance

Table 3: Pathogens Identified by PCR/Latex/Culture (Weeks 01-17, 2012)

• Overall pathogens: 3,039 tested; 1,400 positive
• Predominant pathogens: NmW135 (50 cases), Spn (2 cases)
• Benin: NmA (45), NmW135 (2)
• Burkina Faso: Various Nm groups; High positivity for NmA and NmB