Dr. Matthew P. Muller is an Infectious Diseases physician and the Medical Director of Infection Control at Unity Health Toronto. Dr. Muller has been involved in the development of Infection Control guidelines at the Provincial and National level as the former chair of the Ontario Provincial Infectious Diseases Advisory Committee on Infection Prevention and Control (PIDAC) and as a longstanding member of the Public Health Agency of Canada’s National Advisory Committee on Infection Prevention and Control. Dr. Muller is also the co-lead of the Canadian National Vaccine Safety Network. Dr. Muller’s research interests including the prevention of healthcare-associated infection, particularly via hand hygiene and vaccination, and emerging infectious diseases.