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2021 Speakers


Trish Greenhalgh is Professor of Primary Care Health Sciences and Fellow of Green Templeton College at the University of Oxford. She studied Medical, Social and Political Sciences at Cambridge and Clinical Medicine at Oxford before training first as a diabetologist and later as an academic general practitioner. She has a doctorate in diabetes care and an MBA in Higher Education Management. She leads a programme of research at the interface between the social sciences and medicine, working across primary and secondary care.

Her work seeks to celebrate and retain the traditional and the humanistic aspects of medicine and healthcare while also embracing the unparalleled opportunities of contemporary science and technology to improve health outcomes and relieve suffering. Three particular interests are the health needs and illness narratives of minority and disadvantaged groups; the introduction of technology-based innovations in healthcare; and the complex links (philosophical and empirical) between research, policy and practice.

Trish is the author of over 400 peer-reviewed publications and 16 textbooks. She was awarded the OBE for Services to Medicine by Her Majesty the Queen in 2001 and made a Fellow of the UK Academy of Medical Sciences in 2014. She is also a Fellow of the UK Royal College of Physicians, Royal College of General Practitioners, Faculty of Clinical Informatics and Faculty of Public Health.


Infectious Diseases Consultant, Medicine, Division of Infectious Disease, and Microbiologist, Sunnybrook Health Sciences Centre, Toronto

Assistant Professor, Laboratory Medicine and Pathobiology, University of Toronto

In the early days of the COVID-19 pandemic, Dr. Mubareka and colleagues isolated the SARS-CoV-2 virus in a Level 3 containment facility. It is now the principle source of SARS-CoV-2 to most academic CL3 laboratories across the country.

Dr. Mubareka serves on the Chief Science Advisor of Canada’s COVI

D-19 Expert Panel, the Implementation Committee of the Canadian COVID-19 Genomics Network (CanCOGeN) Viral Sequencing Project (Genome Canada) and the Ontario Genomics’ Steering Committee for the Ontario COVID-19 Genomics Rapid Response Coalition. She is also the Chair of the

Ontario Academic Health Sciences SARS-CoV-2 Sequencing Network (ONS2). She has collaborated extensively with fluid dynamics engineers and others to fill gaps in the understanding of viral bioaerosol dispersion.

In 2020, Dr. Mubareka formed the Sunnybrook Translational Research Program for Emerging and Respiratory Viruses (SERV) to focus on viral genomics, transmission and the development of medical countermeasures.


Dave qualified MB BCh BAO from Queens University Belfast in 1981. After an engagement with the ENT training process, he did his initial occ med training with the British Coal Corporation as an assistant area medical officer in the Wales and Western Group, undertaking academic training at the University of Birmingham where he was appointed Clinical Lecturer, taking up a full time post there in 1991 and completing the MFOM in 1993. In 1995 he moved to New Zealand and a post at the University of Otago, his clinical interests lying in the effects of physical agents (noise and vibration) chemical agents (particularly persistent organochlorine compounds and dioxins), musculoskeletal disorders and military medicine. As a reservist since 1975, he has seen tours of duty in Nortern Ireland, East Timor and Afghanistan. His recent research has been in the health of contemporary Veterans, and despite semi retiring has just started a project on exposure to erionite in New Zealand. During the COVID ‘lock down’ he helped assess vulnerable staff for the Southern District Health Board.

JOHN BRENNANB.A.Sc., M.D., C.C.F.P., Medical Director Honda of Canada

Dr. Brennan is a graduate engineer and physician that has diverse training and experience in Family Medicine, Occupational Medicine, Emergency Medicine, and Sports Medicine. He has been in practise since 1987 and currently acts as Medical Director to multiple companies in the automotive and construction sectors. His primary work is being the medical director for Honda of Canada Mfg. Since 2000.

DAN SARKANY | UBC Bachelor of Human Kinetics, UBC Master of Science Occupational Hygiene

Dan Sarkany is the lead occupational hygienist for Teck Coal and is responsible for coordinating occupational hygiene initiatives across 4 active surface mines, 2 surface mines in closure activity and multiple water treatment facilities. These initiatives are implemented by five site based occupational hygienists. Teck Coal operations overall have a workforce of nearly 5,000 employees and up to 3,000 contractors. Dan lives in the Elk Valley of Southeastern British Columbia adjacent to the mines and their workforce.

Dan has led the asessment and implementation of exposure controls to prevent transmission of COVID-19 at Teck Coal operations.

Dan has a MSc Occupational Hygiene from the University of British Columbia.


Lead for Health and Safety at Teck Coal Limited and is responsible for coordinating health and safety initiatives across 4 active surface mines, 2 surface mines in closure activity and multiple water treatment facilities. These operations overall have a workforce population of nearly 5,000 employees and up to 3,000 contractors. Both live and work in the Elk Valley of Southeastern British Columbia adjacent to these mines and their workforce.

Currently working towards a MSc Occupational Hygiene and is a CRBOH Registered Occupational Hygiene Technologist.

Both have been instrumental in developing initiatives to prevent the transmission of COVID-19 at Teck Coal operations.

RICHARD HERON | Vice-President Health and Wellbeing, BPplc

Richard is the Vice-President Health and Chief Medical Officer at BP with responsibility for leading BP’s Health strategy. This includes including wellbeing, occupational health, industrial hygiene for over 70,000 employees, and Community and Public Health matters in the countries where BP operate.

He co-chairs the International Occupational Medicine Society Collaboration (IOMSC), an association of 47 National Occupational Medicine Societies, and currently serves on the UK NHS staff health and wellbeing Board. He is past-President of the UK Faculty and Society of Occupational Medicine, a Fellow of the Royal College of Physicians (London, Edinburgh), and a fellow ACOEM.

He trained in internal medicine in UK and Auckland, New Zealand, before specializing in Occupational Medicine. Before joining BP, Richard was Head of Global Safety, Health and Risk Management at AstraZeneca pharmaceuticals.

Richard is honorary professorial fellow of International Business and Health, Division of Psychiatry and Applied Psychology, University of Nottingham School of Medicine.

His specialist interests include the relationship between good health, good work productivity and work-related mental health. He has worked with a variety of expert advisory groups with UK Government departments of Health, and Work and Pensions, and Public Health England.


Dr. Tsekrekos has been the Medical Director for Workplace Health & Safety at Alberta Health Services for the past seven years. Since January 2020, his main focus at AHS has been COVID-19; in addition to his WHS leadership role, he has contributed to AHS’ Emergency Coordination Centre, Personal Protective Equipment Task Force, Acute Care Outbreak Task Force, COVID-19 Scientific Advisory Group, Aerosol-Generating Medical Procedure Working Group, and COVID-19 Vaccine Task Force.

Dr. Tsekrekos completed his medical degree at the University of Calgary and his occupational medicinespecialty training at the University of Alberta. Prior to his role at AHS, Dr. Tsekrekos worked in Ottawa at the Department of National Defence as the occupational medicine specialist for the Canadian Forces and as a Reserve Artillery Officer. Outside of his AHS role, Dr. Tsekrekos leads an interactive tutorial group as part of the University of Alberta Foundations Course in Occupational Medicine, serves on the Board of Directors for OMSOC, and provides consultative support to the Workers’ Compensation Board of Nova Scotia.


Victoria Arrandale is an Assistant Professor in the Dalla Lana School of Public Health at the University of Toronto and the Associate Director of the Occupational Cancer Research Centre. Dr. Arrandale’s research focusses on the measurement and prevention of workplace exposures. Her research has examined exposures in a variety of workplaces including mining, construction, nail salons and electronic waste recycling facilities. In collaboration with the CSA Group, Victoria led the rapid research report on reopening and operative workplaces during the COVID-19 pandemic.


Occupational Medicine Specialists of Canada


Telephone: 905-415-3917 ext 224 & 222

Toll Free: 1-855-415-3917
Fax: 905-415-0071

Address: 20 Crown Steel Dr. Unit #6,

Markham ON, L3R 9X9


OMSOC is Canada’s only medical society devoted to the specialty practice of occupational medicine. OMSOC brings together occupational medicine specialists and physicians from other specialties with an interest in occupational medicine to advise on health policy, encourage discussion and collaboration amongst stakeholders with whom OMSOC’s members interact, including physicians, employers, labour groups, and other allied health professionals, and to advance the specialty practice of occupational medicine through conferences and the training of future occupational medicine specialists.

The Occupational Medicine Specialists of Canada is the recognized National Specialty Society for Occupational Medicine with the Royal College of Physicians and Surgeons of Canada.

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