FIGURE 6.

Serum antibodies binding of A‐into‐O recipients at timepoints 1 and 3. (A) Binding to A‐subtype antigens at timepoints 1 and 3. MFI of antibody binding to A‐subtypes at timepoints 1 and 3 (data shown for paired samples only) was significantly lower for both IgM (p < .005) and IgG (p < .0005) to all A‐subtypes at timepoint 3. There was no significant difference in IgG or IgM binding to αGal across the cohort at these timepoints. (B) Serum antibodies binding to B‐subtype antigens at timepoints 1 and 3. IgG binding to B‐I and III‐VI was not significantly different at timepoint 3 compared to timepoint 1, but it was lower for B‐II binding (p = .04). IgM binding to each B‐subtype was not significantly different at timepoint 3 compared to timepoint 1