The evolution of SARS-CoV-2 seroprevalence in Canada: a time-series study, 2020-2023

Interpretation: Data up to March 2023 indicate that most people in Canada had acquired antibodies against SARS-CoV-2 through natural infection and vaccination. However, given variations in population seropositivity by age and geography, the potential for waning antibody levels, and new variants that...

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Veröffentlicht in:Canadian Medical Association journal (CMAJ) 2023-08, Vol.195 (31), p.E1030
Hauptverfasser: Murphy, 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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container_end_page
container_issue 31
container_start_page E1030
container_title Canadian Medical Association journal (CMAJ)
container_volume 195
creator Murphy, 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
description Interpretation: Data up to March 2023 indicate that most people in Canada had acquired antibodies against SARS-CoV-2 through natural infection and vaccination. However, given variations in population seropositivity by age and geography, the potential for waning antibody levels, and new variants that may escape immunity, public health policy and clinical decisions should be tailored to local patterns of population immunity.
doi_str_mv 10.1503/cmaj.230949
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1488-2329
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source DOAJ Directory of Open Access Journals; PubMed Central; Alma/SFX Local Collection
subjects Canada
Epidemics
Risk factors
Statistics
title The evolution of SARS-CoV-2 seroprevalence in Canada: a time-series study, 2020-2023
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