570,556 snapshots · latest May 3, 2026
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Browse and search historical snapshots. This is an archive — not current guidance or medical advice. Archived content may be incomplete, outdated, or superseded. For up-to-date recommendations, always consult the official source website.
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386,223 snapshots · latest Apr 14, 2026
243,880 snapshots · latest Apr 28, 2026
Sentinel surveillance outperforms risk-based for tracking tick-borne disease Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-2/3, February/March 2023: Early Warning in Public Health Date published: February/March 2023 ISSN:…
Community-based COVID-19 outbreak of the Alpha variant in Newfoundland Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-2/3, February/March 2023: Early Warning in Public Health Date published: February/March 2023 ISSN: 1481-8531…
Utility of the Peterborough Public Health COVID-19 rapid antigen test self-report tool Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-2/3, February/March 2023: Early Warning in Public Health Date published: February/March 2023…
Wastewater surveillance for earlier detection of COVID-19 outbreaks in Ontario Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-2/3, February/March 2023: Early Warning in Public Health Date published: February/March 2023 ISSN:…
Event-based surveillance: Early warning for communicable diseases Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-2/3, February/March 2023: Early Warning in Public Health Date published: February/March 2023 ISSN: 1481-8531…
CCDR: Volume 49-2/3, February/March 2023: Early Warning in Public Health Download this article as a PDF Published by: The Public Health Agency of Canada Date published: February/March 2023 ISSN: 1481-8531 Subscribe to CCDR Information for authors About CCDR Editorial board…
BA.1/BA.2 asymptomatic rates in school children Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-4, April 2023: Children's Health and COVID-19 Date published: April 2023 ISSN: 1481-8531 Subscribe to CCDR Information for authors…
Analysis of association of COVID-19 vaccination and incidence of cases in Canada Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-4, April 2023: Children's Health and COVID-19 Date published: April 2023 ISSN: 1481-8531 Subscribe to…
SARS-CoV-2 vaccine acceptance among caregivers of children younger than five Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-4, April 2023: Children's Health and COVID-19 Date published: April 2023 ISSN: 1481-8531 Subscribe to CCDR…
COVID-19 outbreak trends in Canada, 2021 Download this article as a PDF Published by: The Public Health Agency of Canada Issue: Volume 49-4, April 2023: Children's Health and COVID-19 Date published: April 2023 ISSN: 1481-8531 Subscribe to CCDR Information for authors About CCDR…
Early release: coverage and features are still expanding.
