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Predictors of SARS-CoV-2 anti-Spike IgG antibody levels following two COVID-19 vaccine doses among children and adults in the Canadian CHILD Cohort

2023-09-08 infectious diseases Title + abstract only
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BackgroundVaccination helps prevent SARS-CoV-2 infection and severe COVID-19. However, vaccine-induced humoral immune responses vary among individuals and wane over time. We aimed to describe the SARS-CoV-2 anti-spike IgG antibody response to vaccination and identify health and demographic factors associated with this response among children and adults. MethodsWe studied a subset of double-vaccinated children (n= 151; mean age: 12 {+/-}1.5 years, 46% female) and adults (n= 995; 44 {+/-}6.0 year...

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