Pneumococcal carriage of individual serotypes in the pre-vaccination and post-vaccination surveys in control and vaccinated villages.

VT includes the seven serotypes included in the vaccine and serotype 6A. NVT includes all other pneumococcal serotypes. All age groups are combined in this table.aOnly those serotypes that were isolated in more than 3% of the samples in at least one group have been included. ORs were calculated only for serotypes with at least 15 isolates in one group.bp-Value for this increase when considering risk difference and allowing clustering by village is p = 0.151; 63.6% of the isolates (7/11) were detected in the same village.cThe increase of prevalence in the vaccinated group during CSS-3 was led by an increase in young children. From the 30 samples collected in the vaccinated arm among children 2 y to n = 5) were isolate 19A and 10% (n = 3) were isolate 23B.NC, not calculated.