Imperial College London


Faculty of MedicineDepartment of Infectious Disease

Visiting Professor







Commonwealth BuildingHammersmith Campus





Alan Johnson is  the Head of the Department of Healthcare Associated Infection  a and Antimicrobial Resistance at Public Health England's Centre for Infectious Disease Surveillance and Control (CIDSC).  The Centre is responsible for the collection and collation of national mandatory surveillance data on Clostridium difficile infections, S. aureus and E. coli  bloodstream infections and orthopaedic surgical site infections. Prof. Johnson’s work centres on the surveillance of antimicrobial resistance in hospital and community settings. He also has a strong interest in infections in children and has under-taken enhanced surveillance of both infant meningitis and MRSA bacteraemia in children in conjunction with the British Paediatric Surveillance Unit of the Royal College of Paediatrics and Child Health.

A main focus of Professor Johnson's work is the use of data linkage to enhance the quality and hence the clinical and public health utility of existing datasets. He has published 240 papers in peer-reviewed journals, is regularly invited to speak at national and international conferences and has experience of dealing with the media, including BBC Newsnight on antibiotic prescribing and resistance.

He is a member of the government Advisory Committee on Antimicrobial Resistance and Healthcare-Associated Infection (ARHAI) and also the Department of Health Antimicrobial Resistance Analytical Working Group. He is the current Editor-in-Chief of the Journal of Antimicrobial Chemotherapy.



Aylin PP, Bou-Antoun S, Costelloe CE, et al., 2018, Age-related decline in antibiotic prescribing for uncomplicated respiratory tract infections in primary care in England following the introduction of a national financial incentive (the Quality Premium) for health commissioners to reduce use of antibiotics in the community: an interrupted time series analysis, Journal of Antimicrobial Chemotherapy, Vol:73, ISSN:0305-7453, Pages:2883-2892

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