Sarah A. Buchan

Estimated Effectiveness of COVID-19 Vaccines Against Omicron or Delta Symptomatic Infection and Severe Outcomes

Sarah A. Buchan, Hannah Chung, Kevin A. Brown et al. · JAMA Network Open · 2022 · 328 citations · Full text

Veterinary Medicine, Infectious Diseases, Preventive Medicine +17

Effectiveness of BNT162b2 and mRNA-1273 covid-19 vaccines against symptomatic SARS-CoV-2 infection and severe covid-19 outcomes in Ontario, Canada: test negative design study

Hannah Chung, Siyi He, Sharifa Nasreen et al. · BMJ · 2021 · 323 citations · Full text

Veterinary Medicine, Immunology, Infectious Diseases +17

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

Ana Cecilia Ulloa, Sarah A. Buchan, Nick Daneman et al. · JAMA · 2022 · 309 citations · Full text

Veterinary Medicine, Health Sciences, Infectious Diseases +13

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

Sharifa Nasreen, Hannah Chung, Siyi He et al. · Nature Microbiology · 2022 · 260 citations · Full text

Veterinary Medicine, Immunology, Infectious Diseases +15

Influenza Vaccine Effectiveness in Preventing Influenza-associated Hospitalizations During Pregnancy: A Multi-country Retrospective Test Negative Design Study, 2010–2016

Mark G. Thompson, Jeffrey C. Kwong, Annette K. Regan et al. · Clinical Infectious Diseases · 2018 · 185 citations

Public Health, Infectious Diseases, Maternal Health +17