Fig. 1: Prevalence of S. pneumoniae serotypes identified.

The upper row shows prevalence (fraction) of vaccine serotypes (1–23F). The following rows show non-vaccine serotypes. Non-typeable strains are excluded from the analysis. The dashed blue line separates early-stages of carriage surveys (June 2015–April 2017, survey 1–4) from late stages of carriage surveys (May 2017–June 2019, survey 5–8). Serotypes are determined by WGS using the PneumoCaT tool. Error bars show standard error of the mean. The number of isolates for each point is given in Table S3.