Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

doi:10.1001/jama.2022.2274

. 2022 Apr 5;327(13):1286-1288.

doi: 10.1001/jama.2022.2274.

Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

Ana Cecilia Ulloa¹, Sarah A Buchan¹, Nick Daneman¹, Kevin A Brown¹

Affiliations

PMID: 35175280
PMCID: PMC8855311
DOI: 10.1001/jama.2022.2274

Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

Ana Cecilia Ulloa et al. JAMA. 2022.

. 2022 Apr 5;327(13):1286-1288.

doi: 10.1001/jama.2022.2274.

Authors

Ana Cecilia Ulloa¹, Sarah A Buchan¹, Nick Daneman¹, Kevin A Brown¹

Affiliation

¹ Public Health Ontario, Toronto, Ontario, Canada.

PMID: 35175280
PMCID: PMC8855311
DOI: 10.1001/jama.2022.2274

Abstract

This study examines hospitalizations and deaths associated with the SARS-CoV-2 Omicron variant compared with matched patients infected with the Delta variant.

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Conflict of interest statement

Conflict of Interest Disclosures: None reported.

Comment in

SARS-CoV-2 Omicron Variant Severity in Ontario, Canada.
Zeng G. Zeng G. JAMA. 2022 Jul 26;328(4):395. doi: 10.1001/jama.2022.9259. JAMA. 2022. PMID: 35881131 No abstract available.

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References

1. Mannar D, Saville JW, Zhu X, et al. . SARS-CoV-2 Omicron variant: antibody evasion and cryo-EM structure of spike protein-ACE2 complex. Science. Published January 20, 2022. doi:10.1126/science.abn7760 - DOI - PMC - PubMed
1. Maslo C, Friedland R, Toubkin M, Laubscher A, Akaloo T, Kama B. Characteristics and outcomes of hospitalized patients in South Africa during the COVID-19 Omicron wave compared with previous waves. JAMA. 2022;327(6):583-584. doi:10.1001/jama.2021.24868 - DOI - PMC - PubMed
1. Public Health Ontario . Early dynamics of Omicron in Ontario, November 1 to December 16, 2021. Accessed December 24, 2021. https://www.publichealthontario.ca/-/media/documents/ncov/epi/covid-19-e...
1. Wolter N, Jassat W, Walaza S, et al. . Early assessment of the clinical severity of the SARS-CoV-2 omicron variant in South Africa: a data linkage study. Lancet. 2022;399(10323):437-446. doi:10.1016/S0140-6736(22)00017-4 - DOI - PMC - PubMed
1. Sheikh A, Kerr S, Woolhouse M, McMenamin J, Robertson C. Severity of Omicron variant of concern and vaccine effectiveness against symptomatic disease: national cohort with nested test negative design study in Scotland. University of Edinburgh. Published December 22, 2021. Accessed February 11, 2022. https://www.research.ed.ac.uk/en/publications/severity-of-omicron-varian... - PMC - PubMed

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[1] Mannar D, Saville JW, Zhu X, et al. . SARS-CoV-2 Omicron variant: antibody evasion and cryo-EM structure of spike protein-ACE2 complex. Science. Published January 20, 2022. doi:10.1126/science.abn7760 - DOI - PMC - PubMed

[2] Mannar D, Saville JW, Zhu X, et al. . SARS-CoV-2 Omicron variant: antibody evasion and cryo-EM structure of spike protein-ACE2 complex. Science. Published January 20, 2022. doi:10.1126/science.abn7760 - DOI - PMC - PubMed

[3] Maslo C, Friedland R, Toubkin M, Laubscher A, Akaloo T, Kama B. Characteristics and outcomes of hospitalized patients in South Africa during the COVID-19 Omicron wave compared with previous waves. JAMA. 2022;327(6):583-584. doi:10.1001/jama.2021.24868 - DOI - PMC - PubMed

[4] Maslo C, Friedland R, Toubkin M, Laubscher A, Akaloo T, Kama B. Characteristics and outcomes of hospitalized patients in South Africa during the COVID-19 Omicron wave compared with previous waves. JAMA. 2022;327(6):583-584. doi:10.1001/jama.2021.24868 - DOI - PMC - PubMed

[5] Public Health Ontario . Early dynamics of Omicron in Ontario, November 1 to December 16, 2021. Accessed December 24, 2021. https://www.publichealthontario.ca/-/media/documents/ncov/epi/covid-19-e...

[6] Public Health Ontario . Early dynamics of Omicron in Ontario, November 1 to December 16, 2021. Accessed December 24, 2021. https://www.publichealthontario.ca/-/media/documents/ncov/epi/covid-19-e...

[7] Wolter N, Jassat W, Walaza S, et al. . Early assessment of the clinical severity of the SARS-CoV-2 omicron variant in South Africa: a data linkage study. Lancet. 2022;399(10323):437-446. doi:10.1016/S0140-6736(22)00017-4 - DOI - PMC - PubMed

[8] Wolter N, Jassat W, Walaza S, et al. . Early assessment of the clinical severity of the SARS-CoV-2 omicron variant in South Africa: a data linkage study. Lancet. 2022;399(10323):437-446. doi:10.1016/S0140-6736(22)00017-4 - DOI - PMC - PubMed

[9] Sheikh A, Kerr S, Woolhouse M, McMenamin J, Robertson C. Severity of Omicron variant of concern and vaccine effectiveness against symptomatic disease: national cohort with nested test negative design study in Scotland. University of Edinburgh. Published December 22, 2021. Accessed February 11, 2022. https://www.research.ed.ac.uk/en/publications/severity-of-omicron-varian... - PMC - PubMed

[10] Sheikh A, Kerr S, Woolhouse M, McMenamin J, Robertson C. Severity of Omicron variant of concern and vaccine effectiveness against symptomatic disease: national cohort with nested test negative design study in Scotland. University of Edinburgh. Published December 22, 2021. Accessed February 11, 2022. https://www.research.ed.ac.uk/en/publications/severity-of-omicron-varian... - PMC - PubMed

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Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

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Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

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