Updated Surveillance Metrics and History of the COVID-19 Pandemic (2020-2023) in Canada: Longitudinal Trend Analysis
2024

COVID-19 Pandemic Update in Canada (2020-2023)

Sample size: 184386 publication Evidence: high

Author Information

Author(s): Mavragani Amaryllis, Ebrahimi Pouyan, Sayiner Ayca Arzu, Wu Scott A, Soetikno Alan G, Ozer Egon A, Welch Sarah B, Liu Yingxuan, Havey Robert J, Murphy Robert L, Hawkins Claudia, Mason Maryann, Post Lori A, Achenbach Chad J, Lundberg Alexander L

Primary Institution: Northwestern University

Hypothesis

This study aims to summarize the status of the pandemic in Canada and provide historical context for its course.

Conclusion

The rate of COVID-19 transmission in Canada remained well below the outbreak threshold for 8 months ahead of the WHO declaration, indicating that the pandemic had largely ended.

Supporting Evidence

  • Canada's COVID-19 transmission rate remained below the outbreak threshold for 8 months before the WHO declaration.
  • Omicron was the predominant variant of concern in Canada from December 2021 onward.
  • Statistical tests indicated that the pandemic had transitioned to an endemic state by May 2023.

Takeaway

This study shows that COVID-19 was mostly under control in Canada by May 2023, with very few new cases.

Methodology

The study analyzed trends in COVID-19 transmissions and deaths in Canada from June 2020 to May 2023 using traditional and dynamic surveillance data.

Limitations

Data reporting became less frequent, and reliance on at-home tests may have led to undercounting of cases.

Statistical Information

P-Value

P<.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.2196/53218

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