Counterfactuals of effects of vaccination and public health measures on COVID-19 cases in Canada: What could have happened?

COVID-19 Canada counterfactual modelling public health measures vaccination

Journal

Canada communicable disease report = Releve des maladies transmissibles au Canada
ISSN: 1188-4169
Titre abrégé: Can Commun Dis Rep
Pays: Canada
ID NLM: 9303729

Informations de publication

Date de publication:
07 Jul 2022
Historique:
medline: 19 6 2023
pubmed: 19 6 2023
entrez: 19 6 2023
Statut: epublish

Résumé

This study illustrates what may have happened, in terms of coronavirus disease 2019 (COVID-19) infections, hospitalizations and deaths in Canada, had public health measures not been used to control the COVID-19 epidemic, and had restrictions been lifted with low levels of vaccination, or no vaccination, of the Canadian population. The timeline of the epidemic in Canada, and the public health interventions used to control the epidemic, are reviewed. Comparisons against outcomes in other countries and counterfactual modelling illustrate the relative success of control of the epidemic in Canada. Together, these observations show that without the use of restrictive measures and without high levels of vaccination, Canada could have experienced substantially higher numbers of infections and hospitalizations and almost a million deaths.

Identifiants

pubmed: 37334255
doi: 10.14745/ccdr.v48i78a01
pii: 487801
pmc: PMC10275398
doi:

Types de publication

Journal Article

Langues

eng

Pagination

292-302

Informations de copyright

Public Health Agency of Canada, 2022.

Déclaration de conflit d'intérêts

Competing interest: None.

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Auteurs

Nicholas H Ogden (NH)

Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe, QC and Guelph, ON.

Patricia Turgeon (P)

Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe, QC and Guelph, ON.

Aamir Fazil (A)

Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe, QC and Guelph, ON.

Julia Clark (J)

Office of the Chief Public Health Officer, Public Health Agency of Canada, Ottawa, ON.

Vanessa Gabriele-Rivet (V)

Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe, QC and Guelph, ON.

Theresa Tam (T)

Office of the Chief Public Health Officer, Public Health Agency of Canada, Ottawa, ON.

Victoria Ng (V)

Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe, QC and Guelph, ON.

Classifications MeSH