Filling evidence gaps on the impact of pneumococcal vaccines

Pneumococcal conjugate vaccines (PCVs) are now widely used for children around the world. Because of the high cost of the vaccine, donor organisations, such as GAVI, The Vaccine Alliance, have developed innovative financing schemes to encourage their introduction in low-income countries. Given these efforts, it is essential to quantify the effect of the vaccines on disease rates. This study fills a crucial gap in our understanding of the effects of PCVs in low-income settings.