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Marek Smieja

mcmaster university

56H-index
309Paper Count
1.3WCitation Count
Published Papers 120
Publication Date
Factors associated with severe health outcomes among community-dwelling older adults hospitalized with respiratory syncytial virus
err2026-06-16
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errVajini N. Atukorale; Jeffrey C. Kwong; Alejandro Hernandez; Rahim Moineddin; Nelson Lee; Alexander Kopp; Melissa K. Andrew; Susan E. Bronskill; Kevin A. Brown; Nick Daneman; Shelley L. Deeks; Jennie Johnstone; Allison J. McGeer; J. Dayre McNally; Samira Mubareka; Michelle Murti; Marek Smieja; Sarah E. Wilson; George Zahariadis; Shelly Bolotin
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Antigen and molecular testing using one swab: Lessons learned from a COVID-19 project
err2025-11-01
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errGilchrist, Jodi; Smieja, Nicole; Marttala, Sarah; Waters, Kelly; Bulir, David; Hasan, Mohammad Rubayet; Smieja, Marek
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Investigating in-hospital transmission of Clostridioides difficile from asymptomatic patients
err2025-09-29
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PREAI
errBaker, Sheridan J. C.; Maciejewski, Julia; Usuanlele, Mary-Theresa; Gilchrist, Jodi; Sharma, Dhundi Raj; Bulir, David; Smieja, Marek; Loeb, Mark; Surette, Michael G.; McArthur, Andrew G.; Mertz, Dominik
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Molecular Epidemiology of Clinical Infections Caused by Serratia marcescens Complex in a Tertiary Care Hospital System: Insights From Whole-Genome Sequencing
err2025-08-01
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errKomorowski, Adam S.; Surette, Michael G.; Rossi, Laura; Tertigas, Dominique; Gaskin, Mark; Shekarriz, Shahrokh; McArthur, Andrew G.; Smieja, Marek; Mertz, Dominik
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The association between HIV drug resistance testing, viral suppression and mortality in Ontario: a retrospective cohort study
err2025-07-31
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errLawrence Mbuagbaw; Carmen H. Logie; Lehana Thabane; Fiona Smaill; Marek Smieja; Ann N. Burchell; Beth Rachlis; Jean Eric Tarride; Abigail E. Kroch; Tony Mazzulli; Elizabeth Alvarez; Francis Nguyen; Richard Perez; Cristian Garcia; Jessyca Matos Silva; Hsien Seow
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Incidence of Respiratory Syncytial Virus-Associated Hospitalization Among Adults in Ontario, Canada, 2017-2019
err2025-07-01
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errBuchan, Sarah A.; Alessandrini, Jenna; Drover, Samantha S. M.; Andrew, Melissa K.; Bronskill, Susan E.; Brown, Kevin A.; Daneman, Nick; Deeks, Shelley L.; Gubbay, Jonathan B.; Johnstone, Jennie; Karnauchow, Timothy M.; Lee, Samantha; Mcgeer, Allison J.; Mcnally, J. Dayre; Mcneil, Shelly A.; Mubareka, Samira; Murti, Michelle; Smieja, Marek; Wilson, Sarah E.; Kwong, Jeffrey C.
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Risk factors for infection with SARS-CoV-2 in a cohort of Canadian healthcare workers: 2020-2023
err2025-06-23
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errColeman, Brenda L.; Robertson, Nicole M.; Harrison, Robyn A.; Valiquette, Louis; Langley, Joanne M.; Muller, Matthew P.; Cooper, Curtis L.; Nadarajah, Jeya; Powis, Jeff; Arnoldo, Saranya; Smieja, Marek; Vanderkooi, Otto G.; Qi, Freda; Colwill, Karen; Gingras, Anne Claude; McGeer, Allison
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Trends in Testing for SARS-CoV-2 Among Healthcare Workers in a Canadian Cohort Study During the COVID-19 Pandemic, June 2020 to November 2023
err2025-05-30
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errNicole M. Robertson; Brenda L. Coleman; Robyn Harrison; Curtis Cooper; Jeya Nadarajah; Marek Smieja; Jeff Powis; CCS Working Group
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Four COVID-19 screening strategies for early case identification within the homeless shelter population: a cluster randomized controlled trial
err2024-12-28
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errMokashi, Vaibhav; Gilchrist, Jodi; Smieja, Nicole; Maciejewski, Julia; Marttala, Sarah; Beal, Kerry; Mbuagbaw, Lawrence; Bulir, David; Smieja, Marek; O'Shea, Tim
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Measuring waning protection from seasonal influenza vaccination during nine influenza seasons, Ontario, Canada, 2010/11 to 2018/19
err2024-02-22
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errChung, Hannah; Campitelli, Michael A.; Buchan, Sarah A.; Campigotto, Aaron; Crowcroft, Natasha S.; Gubbay, Jonathan B.; Jung, James K. H.; Karnauchow, Timothy; Katz, Kevin; McGeer, Allison J.; McNally, J. Dayre; Richardson, David C.; Richardson, Susan E.; Rosella, Laura C.; Russell, Margaret L.; Schwartz, Kevin L.; Simor, Andrew; Smieja, Marek; Sundaram, Maria E.; Warshawsky, Bryna F.; Zahariadis, George; Kwong, Jeffrey C.
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Chronic COVID-19 infection in an immunosuppressed patient shows changes in lineage over time: a case report
err2024-01-04
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errBaker, Sheridan J. C.; Nfonsam, Landry E.; Leto, Daniela; Rutherford, Candy; Smieja, Marek; Mcarthur, Andrew G.
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Effectiveness of Influenza Vaccination During Pregnancy Against Laboratory-Confirmed Seasonal Influenza Among Infants Under 6 Months of Age in Ontario, Canada
err2023-11-29
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errFell, Deshayne B.; Russell, Margaret; Fung, Stephen G.; Swayze, Sarah; Chung, Hannah; Buchan, Sarah A.; Roda, Weston; Smolarchuk, Christa; Wilson, Kumanan; Crowcroft, Natasha S.; Schwartz, Kevin L.; Gubbay, Jonathan B.; McGeer, Allison J.; Smieja, Marek; Richardson, David C.; Katz, Kevin; Zahariadis, George; Campigotto, Aaron; Mubareka, Samira; McNally, J. Dayre; Karnauchow, Timothy; Zelyas, Nathan; Svenson, Lawrence W.; Kwong, Jeffrey C.
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More Than a Decade Since the Latest CONSORT Non-inferiority Trials Extension: Do Infectious Diseases Trials Do Enough?
err2023-09-22
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PREAI
errKomorowski, Adam S.; Lo, Carson K. L.; Kapoor, Andrew K.; Smieja, Marek; Loeb, Mark; Mertz, Dominik; Bai, Anthony D.
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Sensitivity to Neutralizing Antibodies and Resistance to Type I Interferons in SARS-CoV-2 R.1 Lineage Variants, Canada
err2023-07-01
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errJacob, Rajesh Abraham; Zhang, Ali; Ajoge, Hannah O.; D'Agostino, Michael R.; Nirmalarajah, Kuganya; Shigayeva, Altynay; Demian, Wael L.; Baker, Sheridan J. C.; Derakhshani, Hooman; Rossi, Laura; Nasir, Jalees A.; Panousis, Emily M.; Draia, Ahmed N.; Vermeiren, Christie; Gilchrist, Jodi; Smieja, Nicole; Bulir, David; Smieja, Marek; Surette, Michael G.; McArthur, Andrew G.; McGeer, Allison J.; Mubareka, Samira; Banerjee, Arinjay; Miller, Matthew S.; Mossman, Karen
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Methodological and Reporting Quality of Noninferiority Randomized Controlled Trials Comparing Antiretroviral Therapies: A Systematic Review
err2023-05-27
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errLo, Carson K. L.; Komorowski, Adam S.; Hall, Clayton W.; Sandstrom, Teslin S.; Alamer, Amnah A. M.; Mourad, Omar; Li, Xena X.; Al Ohaly, Rand; Benoit, Marie-Eve; Duncan, D. Brody; Fuller, Charlotte A.; Shaw, Shazeema; Suresh, Mallika; Smaill, Fiona; Kapoor, Andrew K.; Smieja, Marek; Mertz, Dominik; Bai, Anthony D.
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Evaluating the Impact of Statin Use on Influenza Vaccine Effectiveness and Influenza Infection in Older Adults
err2023-03-21
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errChung, Hannah; Campitelli, Michael A.; Buchan, Sarah A.; Campigotto, Aaron; Chen, Branson; Crowcroft, Natasha S.; Dubey, Vinita; Gubbay, Jonathan B.; Karnauchow, Timothy; Katz, Kevin; McGeer, Allison J.; McNally, J. Dayre; Mubareka, Samira; Murti, Michelle; Richardson, David C.; Rosella, Laura C.; Schwartz, Kevin L.; Smieja, Marek; Zahariadis, George; Kwong, Jeffrey C.
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Changes in Body Mass Index with Longer-term Integrase Inhibitor Use: A Longitudinal Analysis of Data from the Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE)
err2023-02-24
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PREAI
errKileel, Emma M.; Malvestutto, Carlos D.; Lo, Janet; Fitch, Kathleen, V; Fichtenbaum, Carl J.; Aberg, Judith A.; Zanni, Markella, V; Martinez, Esteban; Okeke, Nwora Lance; Kumar, Princy; Joao, Esau; Bares, Sara H.; Berrner, Daniel; Smieja, Marek; Roa, Jhoanna C.; McCallum, Sara; Douglas, Pamela S.; Ribaudo, Heather J.; Grinspoon, Steven K.
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Mental Health Impacts of Quarantine: Insights from the COVID-19 International Border Surveillance Study in Toronto, Canada
err2022-09-01
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errRegehr, C.; Goe, V.; De Prophetis, E.; Jamil, M.; Mertz, D.; Rosella, L.; Bulir, D.; Smieja, M.
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Optimising the management of childhood acute diarrhoeal disease using a rapid test-and- treat strategy and/or Lactobacillus reuteri DSM 17938: a multicentre, randomised, controlled, factorial trial in Botswana
err2022-04-13
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errPernica, Jeffrey M.; Arscott-Mills, Tonya; Steenhoff, Andrew P.; Mokomane, Margaret; Moorad, Banno; Bapabi, Mbabi; Lechiile, Kwana; Mangwegape, Oarabile; Batisani, Boswa; Mawoko, Norah; Muthoga, Charles; Vanniyasingam, Thuvaraha; Ewusie, Joycelyne; Lowe, Amy; Bonsu, Janice M.; Gezmu, Alemayehu M.; Smieja, Marek; Mazhani, Loeto; Stordal, Ketil; Thabane, Lehana; Kelly, Matthew S.; Goldfarb, David M.
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