[HTML][HTML] Effectiveness of COVID-19 vaccines against symptomatic SARS-CoV-2 infection and severe outcomes with variants of concern in Ontario
SARS-CoV-2 variants of concern (VOC) are more transmissible and may have the potential
for increased disease severity and decreased vaccine effectiveness. We estimated the …
for increased disease severity and decreased vaccine effectiveness. We estimated the …
Association of age and pediatric household transmission of SARS-CoV-2 infection
…, KA Brown, M Whelan, E Chan, SA Buchan - JAMA …, 2021 - jamanetwork.com
Importance As a result of low numbers of pediatric cases early in the COVID-19 pandemic,
pediatric household transmission of SARS-CoV-2 remains an understudied topic. Objective …
pediatric household transmission of SARS-CoV-2 remains an understudied topic. Objective …
Early estimates of SARS-CoV-2 Omicron variant severity based on a matched cohort study, Ontario, Canada
While it is now evident that Omicron is rapidly replacing Delta, due to a combination of
increased transmissibility and immune escape, it is less clear how the severity of Omicron …
increased transmissibility and immune escape, it is less clear how the severity of Omicron …
[HTML][HTML] COVID-19 workplace outbreaks by industry sector and their associated household transmission, Ontario, Canada, January to June, 2020
…, J Johnson, S Ravindran, SA Buchan - … of occupational and …, 2021 - journals.lww.com
Objective: To analyze workplace outbreaks by industry sector in the first wave of the pandemic,
and associated household cases. Methods: Number, size, and duration of outbreaks …
and associated household cases. Methods: Number, size, and duration of outbreaks …
Estimated effectiveness of COVID-19 vaccines against Omicron or Delta symptomatic infection and severe outcomes
Importance The incidence of SARS-CoV-2 infection, including among individuals who have
received 2 doses of COVID-19 vaccine, increased substantially following the emergence of …
received 2 doses of COVID-19 vaccine, increased substantially following the emergence of …
Effectiveness of BNT162b2 and mRNA-1273 covid-19 vaccines against symptomatic SARS-CoV-2 infection and severe covid-19 outcomes in Ontario, Canada: test …
H Chung, S He, S Nasreen, ME Sundaram, SA Buchan… - bmj, 2021 - bmj.com
Objective To estimate the effectiveness of mRNA covid-19 vaccines against symptomatic
infection and severe outcomes (hospital admission or death). Design Test negative design …
infection and severe outcomes (hospital admission or death). Design Test negative design …
Estimates of SARS-CoV-2 omicron variant severity in Ontario, Canada
Methods| We conducted a retrospective population-wide matched cohort study of patients
infected with the Omicron and Delta variants, using Ontario-wide data sets: Public Health Case …
infected with the Omicron and Delta variants, using Ontario-wide data sets: Public Health Case …
Epidemiology of myocarditis and pericarditis following mRNA vaccination by vaccine product, schedule, and interdose interval among adolescents and adults in …
SA Buchan, CY Seo, C Johnson, S Alley… - JAMA network …, 2022 - jamanetwork.com
Importance Increased rates of myocarditis or pericarditis following receipt of COVID-19
mRNA vaccines have been observed. However, few available data are associated with …
mRNA vaccines have been observed. However, few available data are associated with …
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
R Grewal, SA Kitchen, L Nguyen, SA Buchan… - Bmj, 2022 - bmj.com
Objectives To estimate the marginal effectiveness of a fourth versus third dose and the
vaccine effectiveness of mRNA covid-19 vaccines BNT162b2 and mRNA-1273 against any …
vaccine effectiveness of mRNA covid-19 vaccines BNT162b2 and mRNA-1273 against any …
Association of COVID-19 vaccination in pregnancy with adverse peripartum outcomes
Importance There is limited comparative epidemiological evidence on outcomes associated
with COVID-19 vaccination during pregnancy; monitoring pregnancy outcomes in large …
with COVID-19 vaccination during pregnancy; monitoring pregnancy outcomes in large …