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Showing 1-10 of 33

Journal Article

03/03/2023

COVID-19 vaccine effectiveness against Omicron infection and hospitalization

Piché-Renaud PP, Swayze S, Buchan SA, Wilson SE, Austin PC, Morris SK, Nasreen S, Schwartz KL, Tadrous M, Thampi N, Wilson K, KwongJC; Immunization Research Network (CIRN) Provincial Collaborative Investigators. Pediatrics. 2023; Mar 3 [Epub ahead of print].

Journal Article

27/02/2023

Myocarditis or pericarditis events after BNT162b2 vaccination in individuals aged 12 to 17 years in Ontario, Canada

Buchan SA, Alley S, Seo CY, Johnson C, Kwong JC, Nasreen S, Thampi N, Lu D, Harris TM, Calzavara A, Wilson SE. JAMA Pediatr. 2023; 177(4):410-8. Epub 2023 Feb 27.

Journal Article

03/12/2022

Effectiveness and duration of protection of a fourth dose of Coronavirus disease 2019 messenger RNA vaccine among long-term care residents in Ontario, Canada

Grewal R, Nguyen L, Buchan SA, Wilson SE, Costa AP, Kwong JC. J Infect Dis. 2023; 227(8):977–80. Epub 2022 Dec 3.

Journal Article

22/09/2022

Estimated effectiveness of COVID-19 vaccines against Omicron or Delta symptomatic infection and severe outcomes

Buchan SA, Chung H, Brown KA, Austin PC, Fell DB, Gubbay JB, Nasreen S, Schwartz KL, Sundaram ME, Tadrous M, Wilson K, Wilson SE, Kwong JC. JAMA Netw Open. 2022; 5(9):e2232760. Epub 2022 Sep 22.

Journal Article

07/09/2022

Effectiveness of COVID-19 vaccines over time prior to Omicron emergence in Ontario, Canada: test-negative design study

Chung H, Austin PC, Brown KA, Buchan SA, Fell DB, Fong C, Gubbay JB, Nasreen S, Schwartz KL, Sundaram ME, Tadrous M, Wilson K, Wilson SE, Kwong JC; on behalf of the Canadian Immunization Research Network (CIRN) Provincial Collaborative Network (PCN) Investigators. Open Forum Infect Dis. 2022; Sep 7 [Epub ahead of print].

Journal Article

06/07/2022

Effectiveness of a fourth dose of COVID-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study

Grewal R, Kitchen SA, Nguyen L, Buchan SA, Wilson SE, Costa AP, Kwong JC. BMJ. 2022; 378:e071502. Epub 2022 Jul 6.

Journal Article

28/06/2022

Estimating population-based incidence of community-acquired pneumonia and acute otitis media in children and adults in Ontario and British Columbia using health administrative data, 2005-2018: a Canadian Immunisation Research Network (CIRN) study

Nasreen S, Wang J, Sadarangani M, Kwong JC, Quach C, Crowcroft NS, Wilson SE, McGeer A, Morris SK, Kellner JD, Sander B, Kus JV, Hoang L, Marra F, Fadel SA. BMJ Open Respir Res. 2022; 9(1):e001218. Epub 2022 Jun 28.

Journal Article

16/06/2022

Vaccine effectiveness of BNT162b2 against Delta and Omicron variants in adolescents

Buchan SA, Nguyen L, Wilson SE, Kitchen SA, Kwong JC. Pediatrics. 2022; Jun 16 [Epub ahead of print].

Journal Article

27/04/2022

Background incidence rates of adverse events of special interest related to COVID-19 vaccines in Ontario, Canada, 2015 to 2020, to inform COVID-19 vaccine safety surveillance

Nasreen S, Calzavara A, Buchan SA, Thampi N, Johnson C, Wilson SE, Kwong JC; on behalf of the Canadian Immunization Research Network CIRN Provincial Collaborative Network PCN Ontario investigators. Vaccine. 2022; 40(24):3305-12. Epub 2022 Apr 27.

Journal Article

07/02/2022

Effectiveness of COVID-19 vaccines against symptomatic SARS-CoV-2 infection and severe outcomes with variants of concern in Ontario

Nasreen S, Chung H, He S, Brown KA, Gubbay JB, Buchan SA, Fell DB, Austin PC, Schwartz KL, Sundaram ME, Calzavara A, Chen B, Tadrous M, Wilson K, Wilson SE, Kwong JC; Canadian Immunization Research Network (CIRN) Provincial Collaborative Network (PCN) Investigators. Nat Microbiol. 2022; 7(3):379-85. Epub 2022 Feb 7.

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COVID-19 vaccine effectiveness against Omicron infection and hospitalization

Myocarditis or pericarditis events after BNT162b2 vaccination in individuals aged 12 to 17 years in Ontario, Canada

Effectiveness and duration of protection of a fourth dose of Coronavirus disease 2019 messenger RNA vaccine among long-term care residents in Ontario, Canada

Estimated effectiveness of COVID-19 vaccines against Omicron or Delta symptomatic infection and severe outcomes

Effectiveness of COVID-19 vaccines over time prior to Omicron emergence in Ontario, Canada: test-negative design study

Effectiveness of a fourth dose of COVID-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study

Estimating population-based incidence of community-acquired pneumonia and acute otitis media in children and adults in Ontario and British Columbia using health administrative data, 2005-2018: a Canadian Immunisation Research Network (CIRN) study

Vaccine effectiveness of BNT162b2 against Delta and Omicron variants in adolescents

Background incidence rates of adverse events of special interest related to COVID-19 vaccines in Ontario, Canada, 2015 to 2020, to inform COVID-19 vaccine safety surveillance

Effectiveness of COVID-19 vaccines against symptomatic SARS-CoV-2 infection and severe outcomes with variants of concern in Ontario