Nasopharyngeal carriage of Streptococcus pneumoniae in children aged two to five years old in the conjugate vaccine era: A cross-sectional study in Salvador, Brazil
Background Monitoring the prevalence and serotype distribution of Streptococcus pneumoniae nasopharyngeal carriage is essential for understanding transmission dynamics and assessing the impact of pneumococcal conjugate vaccines (PCVs). In Brazil, PCV10-GSK is routinely administered at 2 and 4 months of age with a boost...