​Over 20 years, Dr. Diggle has held various clinical positions within acute diagnostic and reference services throughout the world.  He has spent time focused on rapid/molecular diagnosis of infections (respiratory and those involved in deliberate release) and in understanding complex infections such as respiratory, gastrointestinal, and wound infections. His initial work involved over 10 years supporting the national reference services in Scotland before moving to Nottingham in England, where he held lead consultant and senior leadership roles in Clinical Microbiology and Pathology - both locally and nationally. Over those several decades, he supported clinical research and transformation within microbiology and infectious diseases with various roles at the National Institute for Health Research (NIHR) and the National Pathology Board (NHSi). Since 2019 he has acted as Consultant Clinical Microbiologist with Alberta Precision Laboratories (APL), Alberta, Canada where he is program lead for a wide range of clinical activities, including the provincial lead for respiratory infections. He supports education of others and more recently became Director of the clinical microbiology fellowship program at the University of Alberta. He also works closely with national and international microbiology charities and societies, including delivery of educational tools to develop future leaders in pathology and clinical microbiology in both high and low resource countries.