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Canadian Government, Epidemiology & Epidemiological Methods, Health Policy, Health Services, Infectious Diseases: COVID-19


Public trust in scientific research, especially research regarding vaccines, has proven fragile during the COVID-19 pandemic. To counter abundant misinformation about SARS-CoV-2 vaccines, rigorous, ongoing evaluations of vaccine safety and effectiveness by independent Canadian researchers are important. However, researchers' efforts to conduct timely, national studies of vaccine effectiveness have been hindered by barriers to data sharing that have made it difficult to integrate patients' vaccination status into SARS-CoV-2 clinical and epidemiological studies. Here, McRae et al discuss how a risk-averse data-sharing culture has led to missed opportunities to conduct robust, timely, pan-Canadian SARS-CoV-2 clinical and vaccine effectiveness studies, and outline mechanisms for data sharing that can and should be undertaken.