I am one of the principal investigators in the Child Health Informatics Group: https://www.ucl.ac.uk/child-health/research/population-policy-and-practice-research-and-teaching-department/cenb-clinical-3 and the lead for administrative data analyses for the NIHR Children's Policy Research Unit (https://www.ucl.ac.uk/children-policy-research). 

My research focuses on using routinely collected health data (including birth and death certificates, hospital admission records and general practice databases) for child health research. I have used these data to estimate the effectiveness of influenza vaccines, determine the role of chronic conditions in childhood mortality, and carry out international comparisons of childhood morbidity and mortality. 

My particular interest is in the epidemiology of respiratory infections in children. In 2013 I was awarded a postdoctoral fellowship from the National Institute for Health Research to determine the burden of severe influenza in children, and examine whether influenza vaccines, antivirals and antibiotics can prevent hospital admissions. I have also carried out several studies of respiratory syncytial virus epidemiology, and antibiotic prescribing in children. I am the principal investigator for the MRC-funded Air Pollution, housing and respiratory tract Infections in Children: NatIonal birth Cohort study (PICNIC) study (https://www.ucl.ac.uk/child-health/picnic-study) and a co-I of VirusWatch, a UK community cohort study of COVID-19 (https://ucl-virus-watch.net/). I lead the analyses of English data for VERDI, a Horizon Europe funded international collaboration examining the impact of SARS-CoV-2 variants of concern on pregnant women and children: https://verdiproject.org/