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[Preprint]. 2021 Mar 6:2021.03.03.21252872. [Version 1] doi: 10.1101/2021.03.03.21252872

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Figure 1. — A) UPenn Immune Health COVID vaccine study design. B) Concentration of anti-spike and anti-RBD IgG antibodies in vaccinated individuals over time. Dotted lines indicate the limit of detection for the assay. Blue = SARS-CoV2 naïve + mRNA vaccine, red = SARS-CoV2 recovered + mRNA vaccine. Statistics were calculated using unpaired Kruskal-Wallis or Wilcoxon test with adjustment for multiple comparisons.