Edited by Dr. Dominik Mertz, Associate Professor, Division of Infectious Diseases, McMaster University and Medical Director, Infection Prevention and Control, Hamilton Health Sciences, Hamilton, Ontario, Canada Dr. Fiona Smaill, Professor, Department of Pathology and Molecular Medicine, McMaster University and Medical Microbiologist, Hamilton Regional Laboratory Medicine Program, Hamilton, Ontario, Canada Dr. Nick Daneman, Clinician-Scientist, Division of Infectious Diseases, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada