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Karen Colwill

mount sinai hospital

36H-index
129Paper Count
8.7KCitation Count
Published Papers 55
Publication Date
SARS-CoV-2 Infection and COVID-19 Vaccine Antibody Responses in Two Canadian Cohorts of Persons Living with HIV
err2026-04-06
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errSharon L. Walmsley; Leif Erik Lovblom; Bryan Boyachuk; Curtis Cooper; Valérie Martel-Laferrière; Mona Loutfy; Marie-Louise Vachon; Shariq Haider; Pamela Aldebes; Karen Colwill; Anne Claude Gingras; Freda Qi; Marina B. Klein
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Pre-pandemic cross-reactive T-cell responses are associated with subsequent protection against SARS-CoV-2 infection, but not against symptomatic illness
err2025-11-01
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PREAI
errYang, Su; Uduyakumar, Suji; Xie, Cong; Huibner, Sanja; Colwill, Karen; Gingras, Anne-Claude; Kimani, Joshua; Kaul, Rupert
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Altered germinal center outputs to SARS-CoV-2 mRNA vaccination in inflammatory bowel disease patients treated with anti-TNF biologics
err2025-11-01
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PREAI
errCheung, Michelle W.; Xu, Samantha; Shapiro, Janna; Dayam, Roaya; Qi, Freda; Delgado-Brand, Melanie; Colwill, Karen; Liu, Ying; Chao, Gary; Stempak, Joanne; Rini, James; Chandran, Vinod; Silverberg, Mark; Gingras, Anne-Claude; Watts, Tania H.
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Reduced vaccine-induced germinal center outputs in patients with inflammatory bowel disease treated with anti-TNF biologics
err2025-10-01
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errCheung, Michelle W.; Xu, Samantha; Shapiro, Janna R.; Qi, Freda; Delgado-Brand, Melanie; Colwill, Karen; Dayam, Roya M.; Liu, Ying; Lee, Jenny D.; Stempak, Joanne M.; Rini, James M.; Chandran, Vinod; Silverberg, Mark S.; Gingras, Anne-Claude; Watts, Tania H.
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Proximity-Dependent Proteomics and Network Analysis of Adenylyl Cyclase Isoforms 5, 6, and 9 in Cardiomyocytes
err2025-07-31
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errTaeyeop Park; Yong Li; Neha Arora; Anibal Garza-Carbajal; Karen Colwill; Cassandra J. Wong; Yong Zhou; Carmen W. Dessauer
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Immunogenicity of COVID-19 booster vaccines in children receiving immunosuppressive medications
err2025-07-21
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PREAI
errJanna R. Shapiro; Florence Choi; Amy Xu; Trang T. Duong; Anne-Claude Gingras; Karen Colwill; Sasha Bernatsky; Susanne M. Benseler; Rae SM Yeung
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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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Validation of new equipment for SARS-CoV-2 diagnosis in Ecuador: Detection of the virus and antibodies generated by disease and vaccines with one POC device
err2025-04-16
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errVillota, Stephany D.; Veloz-Villavicencio, Eliana; Garcia-Iturralde, Santiago; Arevalo, Johanna Valentina; Lu, Suying; Jaenes, Katariina; Guo, Yuxiu; Cicek, Seray; Colwill, Karen; Gingras, Anne-Claude; Bremner, Rod; Ponce, Patricio; Pardee, Keith; Cevallos, Varsovia Enid
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mRNA vaccine-induced SARS-CoV-2 spike-specific IFN-γ and IL-2 T-cell responses are predictive of serological neutralization and are transiently enhanced by pre-existing cross-reactive immunity
err2025-01-31
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errSamaan, Philip; Korosec, Chapin S.; Budylowski, Patrick; Chau, Serena L. L.; Pasculescu, Adrian; Qi, Freda; Delgado-Brand, Melanie; Tursun, Tulunay R.; Mailhot, Genevieve; Dayam, Roya Monica; Arnold, Corey R.; Langlois, Marc-Andre; Mendoza, Justin; Morningstar, Thomas; Law, Ryan; Mihelic, Erik; Sheikh-Mohamed, Salma; Cao, Eric Yixiao; Paul, Nimitha; Patel, Anjali; de Launay, Keelia Quinn; Boyd, Jamie M.; Takaoka, Alyson; Colwill, Karen; Matveev, Vitaliy; Yue, Feng Yun; Mcgeer, Allison; Straus, Sharon; Gingras, Anne-Claude; Heffernen, Jane M.; Ostrowski, Mario
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High-resolution quadrupole improves spectral purity and reduces interference from non-target ions in isobaric multiplexed quantitative proteomics
err2024-10-01
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PREAI
errZhang, Shen; Blanc, J. C. Yves Le; Larsen, Brett; Colwill, Karen; Burton, Lyle; Guna, Mircea; Gingras, Anne-Claude; Tate, Stephen
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Hybrid immunity from severe acute respiratory syndrome coronavirus 2 infection and vaccination in Canadian adults: A cohort study
err2024-06-25
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errBrown, Patrick E.; Fu, Sze Hang; Newcombe, Leslie; Tang, Xuyang; Nagelkerke, Nico; Birnboim, H. Chaim; Bansal, Aiyush; Colwill, Karen; Mailhot, Genevieve; Delgado-Brand, Melanie; Tursun, Tulunay; Qi, Freda; Gingras, Anne-Claude; Slutsky, Arthur S.; Pasic, Maria D.; Companion, Jeffrey; Bogoch, Isaac I.; Morawski, Ed; Lam, Teresa; Reid, Angus; Jha, Prabhat
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Declining Levels of Neutralizing Antibodies to SARS-CoV-2 Omicron Variants Are Enhanced by Hybrid Immunity and Original/Omicron Bivalent Vaccination
err2024-05-22
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errWalmsley, Sharon; Nabipoor, Majid; Qi, Freda; Lovblom, Leif Erik; Ravindran, Rizani; Colwill, Karen; Dayam, Roya Monica; Tursun, Tulunay R.; Silva, Amanda; Gingras, Anne-Claude
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Comparison of Omicron breakthrough infection versus monovalent SARS-CoV-2 intramuscular booster reveals differences in mucosal and systemic humoral immunity
err2024-04-01
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errNantel, Sabryna; Sheikh-Mohamed, Salma; Chao, Gary Y. C.; Kurtesi, Alexandra; Hu, Queenie; Wood, Heidi; Colwill, Karen; Li, Zhijie; Liu, Ying; Seifried, Laurie; Bourdin, Benoite; McGeer, Allison; Hardy, William R.; Rojas, Olga L.; Al-Aubodah, Tho-Alfakar; Liu, Zhiyang; Ostrowski, Mario A.; Brockman, Mark A.; Piccirillo, Ciriaco A.; Quach, Caroline; Rini, James M.; Gingras, Anne -Claude; Decaluwe, Helene; Gommerman, Jennifer L.
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Enhancing detection of SARS-CoV-2 re-infections using longitudinal sero-monitoring: demonstration of a methodology in a cohort of people experiencing homelessness in Toronto, Canada
err2024-02-02
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errRichard, Lucie; Nisenbaum, Rosane; Colwill, Karen; Mishra, Sharmistha; Dayam, Roya M.; Liu, Michael; Pedersen, Cheryl; Gingras, Anne-Claude; Hwang, Stephen W.
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Predictors of Breakthrough SARS-CoV-2 Infection after Vaccination
err2023-12-28
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errWalmsley, Sharon; Nabipoor, Majid; Lovblom, Leif Erik; Ravindran, Rizani; Colwill, Karen; Mcgeer, Alison; Dayam, Roya Monica; Manase, Dorin; Gingras, Anne-Claude
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BNT162b2 versus mRNA-1273 Third Dose COVID-19 Vaccine in Patients with CKD and Maintenance Dialysis Patients
err2023-10-17
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errYau, Kevin; Tam, Paul; Chan, Christopher T.; Hu, Queenie; Qi, Freda; Abe, Kento T.; Kurtesi, Alexandra; Jiang, Yidi; Estrada-Codecido, Jose; Brown, Tyler; Liu, Lisa; Siwakoti, Aswani; Leis, Jerome A.; Levin, Adeera; Oliver, Matthew J.; Colwill, Karen; Gingras, Anne-Claude; Hladunewich, Michelle A.
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Omicron variant neutralizing antibodies following BNT162b2 BA.4/5 versus mRNA-1273 BA.1 bivalent vaccination in patients with end-stage kidney disease
err2023-09-27
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errYau, Kevin; Kurtesi, Alexandra; Qi, Freda; Delgado-Brand, Melanie; Tursun, Tulunay R.; Hu, Queenie; Dhruve, Miten; Kandel, Christopher; Enilama, Omosomi; Levin, Adeera; Jiang, Yidi; Hardy, W. Rod; Yuen, Darren A.; Perl, Jeffrey; Chan, Christopher T.; Leis, Jerome A.; Oliver, Matthew J.; Colwill, Karen; Gingras, Anne-Claude; Hladunewich, Michelle A.
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Diminished Neutralization Capacity of SARS-CoV-2 Omicron BA.1 in Donor Plasma Collected from January to March 2021
err2023-08-17
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errLin, Yi-Chan J.; Evans, David H.; Robbins, Ninette F.; Orjuela, Guillermo; Abe, Kento T.; Rathod, Bhavisha; Colwill, Karen; Gingras, Anne-Claude; Tuite, Ashleigh; Yi, Qi-Long; O'Brien, Sheila F.; Drews, Steven J.
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The evolution of SARS-CoV-2 seroprevalence in Canada: a time-series study, 2020-2023
err2023-08-13
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errMurphy, Tanya J.; Swail, Hanna; Jain, Jaspreet; Anderson, Maureen; Awadalla, Philip; Behl, Lesley; Brown, Patrick E.; Charlton, Carmen L.; Colwill, Karen; Drews, Steven J.; Gingras, Anne-Claude; Hinshaw, Deena; Jha, Prabhat; Kanji, Jamil N.; Kirsh, Victoria A.; Lang, Amanda L. S.; Langlois, Marc-Andre; Lee, Stephen; Lewin, Antoine; O'Brien, Sheila F.; Pambrun, Chantale; Skead, Kimberly; Stephens, David A.; Stein, Derek R.; Tipples, Graham; Van Caeseele, Paul G.; Evans, Timothy G.; Oxlade, Olivia; Mazer, Bruce D.; Buckeridge, David L.
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Protection from Omicron Infection in Residents of Nursing and Retirement Homes in Ontario, Canada
err2023-05-01
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errBreznik, Jessica A.; Rahim, Ahmad; Kajaks, Tara; Hagerman, Megan; Bilaver, Lucas; Colwill, Karen; Dayam, Roaya M.; Gingras, Anne -Claude; Verschoor, Chris P.; McElhaney, Janet E.; Bramson, Jonathan L.; Bowdish, Dawn M. E.; Costa, Andrew P.
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