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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.
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