Dr Sarah Tonkin-Crine is an Associate Professor and Health Psychologist in the Nuffield Department of Primary Care Health Sciences at the University of Oxford. She leads behavioural research studies to develop and evaluate complex interventions to improve healthcare delivery. She has expertise on antibiotic prescribing in primary care and is particularly interested in clinician behaviour and developing interventions to support delivery of evidence-based practice. Her current research projects are focussed on management of acute infections, asthma, sepsis and penicillin-allergy. She is an expert member of the Government’s Advisory Committee on Antimicrobial Prescribing, Resistance and Healthcare Associated Infection (APRHAI) which provides practical and scientific advice to the government on minimising the risk of healthcare associated infections.