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PHO Grand Rounds: Pertussis in Ontario: Catch me if you can
Tuesday, June 27, 2017 12:00 pm to 01:00 pm
Venue: 661 University Avenue, 17th floor. Boardrom 17-53
Infectious Diseases
City: Toronto
Type: PHO Grand Rounds
Format: In Person; Webinar

​​Note: This is an open invitation, and may be forwarded to interested parties.

The identification of pertussis cases is a long-standing challenge in all countries because the infection is under-diagnosed and under-reported. We aimed to estimate the true number of pertussis cases in Ontario using multiple data sources including laboratory, administrative, and reportable disease data. We used a method called “capture-recapture” to assess the completeness of different data sources and estimate the true number of cases of pertussis. We found that Pertussis is under-reported in Ontario and the completeness and accuracy of data sources varies. Further research is needed to improve estimates and our understanding of the true burden of pertussis in Ontario.

Presenter: Dr. Natasha Crowcroft

Dr. Natasha Crowcroft is Chief of Applied Immunization Research and Evaluation at Public Health Ontario, and a Professor at the University of Toronto. She trained in medicine and public health at the Universities of Cambridge and London, UK, and in the European Programme for Intervention Epidemiology Training (EPIET) in Belgium. She has 25 years of professional experience in public health. Her research aims to maximize the health benefits of immunization, resulting in over 200 scientific papers, and she is an expert for the World Health Organization.

Please note that you will receive details on how to join the webinar after registering for this event.
Public Health Ontario Rounds are approved for continuing medical education from the Royal College of Physicians and Surgeons. PHO Grand Rounds are also approved by Council of Professional Experience for professional development hours (PDHs) for members of the Canadian Institute of Public Health Inspectors (CIPHI). For more information, contact


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Public Health Ontario is committed to complying with the Accessibility for Ontarians with Disabilities Act (AODA). If you require accommodations to participate in this event, please contact 647-260-7100 or

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