Presentations

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COVID-19 and Infection Control in NZ Schools - an aerosol scientist's perspective

October 29, 2026

Dr. Ian Longley
Director, The Air Quality Collective

AUGUST 27, 2026

Updates from the UK

August 27, 2026

David Osborn, BSc, SpDipEM

US Air Cleaning Policies

August 27, 2026

Georgia Lagoudas

JULY 27, 2026

The COVID-IS-Not-Over Newsletter

July 23, 2026

Dr. John L. Dupuis
Scholarly Publishing Librarian and Engineering and Computer Science Liaison, York University

November 27, 2025

A New Mutated Influenza
A H3N2 Virus:

Why you should care?

November 27, 2025

Dr. Lyne Filiatrault, MD
(Retired)

Excess Mortality Data

November 27, 2025

Tara Moriarty
COVID-19 Resources Canada,

Associate Professor, University of Toronto

Update from CHAIR

(Community & Healthcare Acquired Infection Reduction)

November 27, 2025

Barry Hunt, BSc,

CHAIR Co-Founder, Executive Director

PRESENTATIONS BY CATC PARTICIPANTS

MASKS & RESPIRATORS

TAKING PANDEMIC

LESSONS TO HEART –

with an occupational health lens

Presented at
Canadian Association for Research on Work and Health Conference

June 4, 2025

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VIEW POSTER

STATISTICS ARE PEOPLE WITH THE TEARS WIPED AWAY

Why have so many workers

got sick or died in this

pandemic?

Presented at
Workers' Health and Return to Work in a Changing World of Work

Dorothy Wigmore

Occupational Health Specialist

Ottawa, June 11, 2024

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WHY ARE MULTIPLE VOICES ESSENTIAL FOR PROTECTION IN A COMPLEX PANDEMIC

Kathleen Gadd
MLIS, health sciences librarian

Lyne Filiatrault
Retired MD, FRCPC, PoPBC

Simon Smith
PhD, respirator specialist

Stéphane Bilodeau
PhD, ventilation engineer

Dorothy Wigmore
MS, occupational hygienist

...on behalf of the Canadian Aerosol Transmission Coalition

CPHA/Public Health 2024

April 25, 2024

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LONG COVID:
GOING UPSTREAM

Coalition and PoPBC member Dr. Lyne Filiatrault and colleague Dr. Anne Bhéreur discuss how to prevent COVID-19 infection/reinfection to avoid long-term effects.

November 2023

RAISING OUR VOICES ABOUT COVID IN CANADA

Marking the Fourth Anniversary of the World Health Organization (WHO) Declaring the COVID-19 a Pandemic

March 11, 2022

Presenters:

Dr. Tara Moriarity
Dr. Gosia Gasperowicz
Alec Farquhar

Dr. Simon Smith

Dr. Joe Vipond

REALITY CHECK, MODELLING & SURVEILLANCE TO GUIDE FUTURE RESPONSES

Occupational Health Clinics for Ontario Workers (OHCOW)

March 4, 2022

Dr. Gosia Gasperowicz

Dr. Alex MacKenzie

Dr. Krystal Pollitt

WATCH VIDEOS

VENTILATION and RISK ASSESSMENT for COVID-19 PREVENTION

March 9, 2022

Workplace Health Without Borders (WHWB), including John Oudyk, OHCOW Hygienist

An Interview with
Dr. Anthony Leonardi,
T-cell Researcher

THE T-CELLS ARE NOT ALRIGHT

January 8, 2022

Presented by:

Dr. Kashif Pirzada

Masks4Canada co-founder

Recent Advances in Aerosol Science with Special Reference to SARS-CoV-2 Occupational Exposures

April 21, 2022

Laurence Svirchev, MA, BSc, CIH

Kevin Hedges, Ph.D., CIH, COH

Presented at the 10th Scientific Conference and NIOEH 40th Anniversary Celebration

MASK SMART 3
Protecting workers from Airborne hazards

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Overview of Selection, Use and Care of Respirators

June 22, 2022

Simon Smith
Retired / CSA Comm. Member

Respirator Fit Test and Fit Check: 101

June 22, 2022

Lydia Renton, CIH, ROH, FAIHA
Blue Metric Environmental

Lessons Learned

June 22, 2022

Dan Curts
3M Canada

MASK SMART 2
RESPIRATORY PROTEction in thE workplace

WHY: Masks Still Matter for COVID (and Beyond)

June 15, 2022

Kashif Pirzada, MD

WHAT? – Is a Respiratory Protection Program

June 15, 2022

Paul Bozek,
BASc, Ming, MBA, Peng, CIR, ROH

Respiratory Protection Programs
Top 10 Lessons Learned

June 15, 2022

Neil McDermott,
M.Sc., CRSP, CIH

MASK SMART 1
Protect yourself and others today
(and tomorrow)

Clear the Air
(of all kinds of hazards)

March 1, 2022

John Oudyk

Mask Smart – Protect Yourself and Others Today (and Tomorrow)

March 1, 2022

Dr. Kevin Hedges

"Mask Smart"
What You Need to Know to Protect Yourself and Others

March 1, 2022

Simon Smith

COVID-19:What really works when it comes to masks, N95s and respirators

February 1, 2022

Dorothy Wigmore
Dr. Simon Smith

Canadian Coalition on Airborne Transmission

December 14, 2021

Marianne Levitsky
MFL Occupational Health Centre

What You Need to Know About Masks, N95s, and Other Respirators

February 1, 2022

Dr. Simon J. Smith

Update on Airborne Precautions for Schools and Workplaces

December 2021

Stephané Bilodeau, ENG., PhD,

Cleaning and Disinfecting in a Pandemic

December 14, 2021

Dorothy Wigmore

Protecting Workers in the Pandemic – Preventing Airborne Transmission
in the Workplace

December 2021

Laurence Svirchev, CIH, BSc, MA