Age-specific prevalence of pneumococcal carriage, by serotype group, Bobo-Dioulasso, Burkina Faso, February 2008.

Nasopharyngeal swabs were taken from all 519 participants and additional oropharyngeal swabs were taken from a subset of 145 participants aged 1 to 39 years. Serotyping based on Quellung reaction.Prevalence percent (95% confidence interval).*includes serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F.†includes serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F.‡An extrapolation factor was calculated for each age group as the ratio of pneumococcal carriage at any site to pneumococcal carriage in the nasopharynx.§Children