Figure 1From: Persistent low carriage of serogroup A Neisseria meningitidistwo years after mass vaccination with the meningococcal conjugate vaccine, MenAfriVac Evolution of carriage prevalence for the dominant clonal complexes in Burkina Faso, 2009–2012. The figure shows the carriage prevalence (%) of ST-23, ST-181 and ST-11 clonal complexes on a logarithmic scale in each study sites in Burkina Faso at ten sampling timepoints, S1-S10.Back to article page