Characterisation of vaccine breakthrough infections of SARS-CoV-2 Delta and Alpha variants and within-host viral load dynamics in the community, France, June to July 2021

We compared PCR results from SARS-CoV-2-positive patients tested in the community in France from 14 June to 30 July 2021. In asymptomatic individuals, Cq values were significantly higher in fully vaccinated than non-fully vaccinated individuals (effect size: 1.7; 95% CI: 1-2.3; p 

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Bibliographic Details
Published in:Euro surveillance : bulletin européen sur les maladies transmissibles 2021-09, Vol.26 (37), p.1
Main Authors: Blanquart, François, Abad, Clémence, Ambroise, Joëvin, Bernard, Mathieu, Cosentino, Gina, Giannoli, Jean-Marc, Débarre, Florence
Format: Article
Language:English
Subjects:
Antibodies
COVID-19
COVID-19 vaccines
Emerging diseases
France
Health surveillance
Human health and pathology
Humans
Immunization
Immunology
Infectious diseases
Life Sciences
Rapid Communication
Santé publique et épidémiologie
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2
Vaccines
Vaccinology
Viral infections
Viral Load
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Summary:We compared PCR results from SARS-CoV-2-positive patients tested in the community in France from 14 June to 30 July 2021. In asymptomatic individuals, Cq values were significantly higher in fully vaccinated than non-fully vaccinated individuals (effect size: 1.7; 95% CI: 1-2.3; p 
ISSN:1560-7917
1025-496X
1560-7917
1025-496X
DOI:10.2807/1560-7917.ES.2021.26.37.2100824