Dr Theresa Lamagni MSc PhD HonMFPH Dr Theresa Lamagni is a Section Head Healthcare-Associated Infection & Antimicrobial Resistance Division of the UK Health Security Agency and designated epidemiologist for the WHO Collaborating Centre for Streptococcal Diseases. She has worked in public health for over 25 years. During this time, she completed an MSc in Epidemiology at the London School of Hygiene & Tropical Medicine and a PhD at the University of Helsinki. Theresa has strategic responsibility for surveillance of streptococcal diseases in England, providing expert support to outbreak and incident response and contributing to the development of an evidence base to inform disease prevention programmes. She has authored over 190 peer-review papers, four clinical microbiology book chapters and four national public health guidelines and sits on the editorial board of the Journal of Antimicrobial Chemotherapy.