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Specific humoral responses in vaccinated healthy subjects. Mean±SEM values for S-protein specific IgG antibodies (BAU/ml) measured in plasma from volunteers vaccinated with BNT162b2 (n=21) or mRNA-1273 (n=19) after 3, 7 and 14 days of receiving the second dose of the vaccine. The linear mixed-effects regression model was adjusted to evaluate each immunological covariate’s evolution over time in each group. *Significant difference when p < 0.05.
