From: Emerging pneumococcal carriage serotypes in a high-risk population receiving universal 7-valent pneumococcal conjugate vaccine and 23-valent polysaccharide vaccine since 2001
2003
2005
Total
No. Children
902
818
1720
Mean age in months (95% CI)
25 (24–26)
35 (33–36)
30.0 (29–31)
Sex male (%)
447 (50%)
403 (49%)
850 (49%)