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Similar duration of viral shedding of the severe acute respiratory coronavirus virus 2 (SARS-CoV-2) delta variant between vaccinated and incompletely vaccinated individuals

Published online by Cambridge University Press:  23 May 2022

Christopher E. Kandel*
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Andra Banete
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
Maureen Taylor
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Andrea Llanes
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Janine McCready
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Gloria Crowl
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Matthew Young
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
Angel X. Li
Affiliation:
Sinai Health System, Toronto, Ontario, Canada
Emily Chien
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
Winfield Yim
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
Lily Yip
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
Robert Kozak
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
Allison J. McGeer
Affiliation:
Sinai Health System, Toronto, Ontario, Canada Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
Samira Mubareka
Affiliation:
Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
Jeff E. Powis
Affiliation:
Michael Garron Hospital, Toronto, Ontario, M4C 3E7, Canada
*
Author for correspondence: Dr. Christopher Kandel, E-mail: christopher.kandel@mail.utoronto.ca

Abstract

Among outpatients with coronavirus disease 2019 (COVID-19) due to the severe acute respiratory coronavirus virus 2 (SARS-CoV-2) δ (delta) variant who did and did not receive 2 vaccine doses at 7 days after symptom onset, there was no difference in viral shedding (cycle threshold difference 0.59, 95% CI, −4.68 to 3.50; P = .77) with SARS-CoV-2 cultured from 2 (7%) of 28 and 1 (4%) of 26 outpatients, respectively.

Type
Concise Communication
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of The Society for Healthcare Epidemiology of America

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