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Specific IgG, IgM, and IgA antibodies binding to spike (S), receptor binding domain (RBD), nucleocapsid (NC). Blood was collected on CIP treated participants (n = 25) immediately prior to infusion (baseline), and then 7, 14, and 28 days post-infusion. Levels of specific anti-SARS-CoV-2 antibodies were measured and compared to baseline. Paired Wilcoxon rank sum P values: * < 0.02; ** < 0.01; *** < 0.001; **** < 0.0001. Medians and the 25 and 75 quartiles are indicated on each violin plot.
