I am a Clinical Epidemiologist based at the Medical Research Council Unit The Gambia at LSHTM. My clinical work in paediatrics and research focusses on acute respiratory infections, pneumonia, sepsis, and meningitis and measurement of the impact of pneumococcal conjugate vaccine (PCV) on these conditions. I now lead a large project evaluating an alternative schedule for PCV, which includes disease, pneumococcal carriage, and immunogenicity endpoints. The project also incorporates a sub-study to detect biomarkers to differentiate bacterial from other causes of pneumonia. I supervise three PhD students and am a tutor on a distance learning module in LSHTM MSc programme.