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PIDAC Coordinating Committee

The PIDAC Coordinating Committee provides guidance and coordination to PIDAC activities within Public Health Ontario and across the advisory committees.


 Dr. Gary Garber, Chair

Gary Garber provides medical leadership to the Infection Prevention and Control department and medical and scientific advice on infection prevention and control to Public Health Ontario.

Garber brings over 20 years' experience working in infection control in Ontario and was formerly the medical director of the Ottawa Hospital's Antimicrobial Stewardship Program. Notably, Garber played an instrumental role in developing the Royal College of Physicians and Surgeons of Canada's program in Adult Infectious Diseases at the University of Ottawa and served as president of the Canadian Infectious Diseases Society (now AMMI Canada). Garber also served as a founding treasurer with the Canadian Association for HIV Research, was a past president of the Ontario Medical Association section for Infectious Diseases and has been member of the Provincial Infectious Diseases Advisory Committee since it began. Garber is a professor of medicine at the University of Ottawa and an infectious diseases physician at The Ottawa Hospital.

Garber received his medical degree from the University of Calgary and received his bachelor of science from McGill University. Garber trained in internal medicine at the University of Toronto and infectious diseases at the University of British Columbia.

Dr. Shelley Deeks, Scientific lead, PIDAC-I

Shelley Deeks is responsible for providing medical leadership for the program area of immunization and vaccine-preventable diseases (IVPD) and provides medical and scientific advice on vaccines and immunization programs and vaccine program evaluation.

Deeks has approximately 15 years' experience in communicable disease control and her current work focuses on vaccine preventable diseases, human papillomavirus prevention, vaccine safety and vaccine program evaluation. Deeks is an assistant professor at the Dalla Lana School of Public Health at the University of Toronto, the scientific lead of Ontario's Provincial Infectious Disease Advisory Committee on Immunization and the chair of the Ontario HPV Prevention Evaluation Committee. Deeks also chairs the World Health Organization's Immunization Practices Advisory Committee.

Deeks received her medical degree from the University of Toronto, where she also received her master of health science. Deeks is a fellow of the Royal College of Physicians and Surgeons of Canada and the Australasian Faculty of Public Health Medicine. Deeks has also completed the Canadian Field Epidemiology Program.

Dr. Doug Sider, Scientific lead, PIDAC-CD

Doug Sider leads Public Health Ontario's team of communicable and infectious disease specialists to develop and enhance provincial capacity in infectious and communicable disease prevention and control.

Sider joined as a public health physician for Infectious Disease Prevention and Control in September, 2009. As the lead for public health measures on our pandemic H1N1 Scientific Response Team, Sider was instrumental in developing public health guidelines to support pandemic management. He has since led our Scientific Response Team for the G8-G20 Summit. Currently, he is co-principal investigator for a research study into the challenges of implementing guidelines in school-based settings during the second wave of pandemic H1N1.

As a former medical officer of health and associate medical officer of health in Ontario and an assistant professor at McMaster University, Sider has a wealth of experience in public health practice in Ontario and abroad, extensive content knowledge, and a genuine desire to enhance the skills of infectious disease prevention and control specialists across the province.

 Nina Arron, Ministry of Health and Long-Term Care

Nina Arron is director, Public Health Policy and Programs Division, Public Health Division, MOHLTC. Prior to joining the Public Health Division in June 2009, she served as the acting executive director at the Centre for Communicable Diseases and Infection Control as well as director of the HIV/AIDS Policy, Coordination and Program Division.

Arron has a bachelor of science in nursing (public health) and graduate preparation in health administration. She has extensive health program and policy experience at the federal level in the areas of aging and seniors, health system renewal, primary care and environmental health. She has rounded out her experience in the community, as director of a community health centre and has held progressive clinical and management positions within the acute care delivery system.

Arron has taught and coordinated post-basic nursing curriculum development at Algonquin College and the Ottawa University specifically in the areas of emergency and intensive care nursing and is currently serving as the provincial health co-chair on the Federal/Provincial/Territorial Food Safety Committee.

Dr. Matthew Muller, Chair, PIDAC-IPC

Matthew Muller is currently an Infectious Diseases Consultant at St. Michael’s Hospital and has been the Medical Director of Infection Prevention and Control at the hospital since 2011. Muller is a member of the Public Health Agency of Canada’s Expert Working Group on Infection Prevention and Control and is the vice chair of the Expert Panel on Infection Control for the Faculty of Medicine at the University of Toronto. He joined the Provincial Infectious Advisory Committee on Infection Prevention and Control (PIDAC-IPC) in 2013 and became the chair of the committee in 2014.

Muller completed his training in Internal Medicine and Infectious Diseases as well as his PhD in Clinical Epidemiology at the University of Toronto. His PhD thesis examined clinical and epidemiological aspects of the SARS epidemic in Toronto. His current research interests are focused on the epidemiology and prevention of healthcare-associated infection as well as issues related to hand hygiene improvement, hand hygiene measurement and hand hygiene measurement technology.

Dr. Carolyn Pim, Chair, PIDAC-I

Carolyn Pim has been associate medical officer of health at Ottawa Public Health since 2012, serving as a consultant to communicable disease, immunization, and environmental health programs. Prior to her appointment, she had worked for the past 20 years in public health at the local (Calgary), provincial (Alberta and B.C.), territorial (NWT) and federal levels in epidemiology, communicable disease control, immunization, health promotion and cancer screening. She has also worked in various capacities with underserved populations including refugees, First Nations, Inuit, and children in rural Uganda.

As a result of her experience in several jurisdictions, Pim has worked within different models of immunization service delivery. She has served as a site investigator for clinical vaccine trials and co-chaired the national Pandemic Vaccine Task Group during the 2009–10 influenza pandemic.

Pim received her doctor of medicine from the University of Calgary, was certified in Family Medicine with the College of Family Physicians of Canada, and has a fellowship in Public Health and Preventive Medicine with the Royal College of Physicians and Surgeons of Canada. She is an adjunct professor in the Department of Epidemiology and Community Medicine at the University of Ottawa.

Dr. Scott Weese, Chair, PIDAC-CD

​Scott Weese is a veterinary internist and microbiologist, and a Diplomate of the American College of Veterinary Internal Medicine. Weese is a professor at the Ontario Veterinary College, University of Guelph and a zoonotic disease/public health microbiologist at the University of Guelph's Centre for Public Health and Zoonoses. He is also chief of infection control at the Ontario Veterinary College Teaching Hospital and holds a Canada Research Chair in zoonotic diseases.

​Weese has published over 170 papers in peer-reviewed journals, edited two books and speaks extensively on infectious disease topics. His research interests are focused on zoonotic and antimicrobial-resistant pathogens, particularly methicillin-resistant staphylococci and clostridium difficile, infection control, emerging diseases and zoonotic disease risks with immune-compromised individuals.

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Page last updated: 2015-11-24 2:07 PM
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